WO2014128749A1 - 形状認識装置、形状認識プログラム、および形状認識方法 - Google Patents
形状認識装置、形状認識プログラム、および形状認識方法 Download PDFInfo
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- WO2014128749A1 WO2014128749A1 PCT/JP2013/000909 JP2013000909W WO2014128749A1 WO 2014128749 A1 WO2014128749 A1 WO 2014128749A1 JP 2013000909 W JP2013000909 W JP 2013000909W WO 2014128749 A1 WO2014128749 A1 WO 2014128749A1
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- shape
- feature point
- outer shape
- recognition
- finger
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Definitions
- the present invention relates to a shape recognition device, a shape recognition program, and a shape recognition method.
- the present invention relates to a shape recognition device, a shape recognition program, and a shape recognition method for recognizing an anatomical feature of an object.
- Patent Document 1 discloses a computer graphics that displays a high-quality image on a screen at high speed, that is, a high-speed image generation and display method.
- the high-speed image generation and display method described in Patent Literature 1 is a high-speed image generation and display method for projecting and displaying an object having a three-dimensional structure on a two-dimensional screen, and the constituent surface of the object is a region in the target coordinate system.
- the size of the object is hierarchically described as at least one element, and is displayed in the target coordinate system from the origin or viewpoint of the display reference coordinate system when projecting the constituent plane of the target when viewed from an arbitrary viewpoint onto the two-dimensional screen.
- the degree of hierarchy is set with the distance to an arbitrary point of the target being set as at least one parameter.
- Patent Document 2 discloses a stereoscopic image generation method and a stereoscopic image generation apparatus that efficiently generate a stereoscopic video without burden on an observer.
- object data to be planarly displayed among objects composed of polygons having three-dimensional coordinates is displayed in the standard camera coordinate system data with the reference camera as the origin.
- the data of the object in the right-eye parallax camera coordinate system is rendered in the video memory as the image data for the right eye, and the data of the object in the reference camera coordinate system and the data of the object in the parallax camera coordinate system for the left eye
- image data draw in video memory and combine right-eye image data and left-eye image data drawn in video memory Te, and displaying an image with mixed stereoscopic object in a plan view object in the stereoscopic display device.
- Patent Document 3 discloses a method using face recognition and gesture / position recognition techniques.
- the method described in Patent Document 3 is a method for applying an attribute indicating a user's temperament to a visual display, which includes a step of rendering the user's visual display and a step of receiving physical space data.
- the data is representative of the user in physical space, the step of analyzing at least one detectable feature to infer the user's temperament, and an attribute indicative of the user's temperament Applying to the display.
- Patent Document 4 discloses a system and method for supplying a multi-mode input to a space or gesture calculation system.
- the system disclosed in Patent Literature 4 includes an input device and a detector that is coupled to a processor and detects the orientation of the input device, and the input device has a plurality of mode orientations corresponding to the orientation.
- Patent Document 5 discloses a system, method, and computer-readable medium for manipulating virtual objects.
- the method described in Patent Document 5 is a method for operating a virtual object in a virtual space, the step of determining at least one controller used by a user to operate the virtual object, and the controller as a cursor in the virtual space.
- a method comprising: mapping; determining a controller input indicating that a user operates a virtual object with a cursor; and displaying an operation result.
- Patent Document 6 In Japanese Patent Application Laid-Open No. 2012-106005 (Patent Document 6), an observer of an image display device obtains a feeling as if it can directly operate a stereoscopic image that does not actually exist.
- An image display device, a game program, and a game control method are disclosed.
- the image display device described in Patent Literature 6 includes an image display unit that displays a parallax image on a display screen, and a virtual spatial coordinate of a stereoscopic image that is recognized between the display screen and the observer by an observer of the parallax image.
- An object of the present invention is to provide a shape recognition device, a shape recognition program, and a shape recognition method capable of obtaining more accurate information for identifying the outer shape of an object.
- a shape recognition device includes an outer shape detection unit that detects the outer shape of an object, a first extraction unit that extracts a first feature point on the outer shape based on the outer shape detected by the outer shape detection unit, Alternatively, a second extraction unit that extracts a second feature point that exists in the outer shape and is different from the first feature point is included.
- the shape recognition apparatus includes an outer shape detection unit, a first extraction unit, and a second extraction unit.
- the outer shape detection unit detects the outer shape of the object.
- the first extraction unit extracts a first feature point on the outer shape based on the outer shape detected by the outer shape detection unit.
- the second extraction unit extracts a second feature point that exists on or within the outer shape and is different from the first feature point.
- not only the first extraction unit but also the second extraction unit can extract not only the first feature point but also the second feature point.
- feature points increase, so that more accurate information for identifying the outer shape of the object can be obtained.
- the shape recognition device is the shape recognition device according to one aspect, wherein the first extraction unit generates a polygon having a plurality of outer shape points as vertices based on the outer shape detected by the outer shape detection unit, One point may be extracted as the first feature point from the vertex of the polygon. Further, the second extraction unit calculates a direction of a line segment connecting a pair of vertices located on both sides of the first feature point, and sequentially forms edges that form the polygon from the first feature point along the outer periphery of the polygon. When a polygon side having a direction closest to the direction of the line segment is detected, a point based on the detected side position is extracted as a second feature point May be.
- a polygon having a plurality of outer shape points at the apex is generated based on the outer shape detected by the outer shape detection unit, and a shared vertex between the polygon and the convex hull of the polygon is determined. You may extract as a 1st feature point.
- a shape recognition device is the shape recognition device according to one aspect, wherein the first extraction unit detects a plurality of outer shape points at predetermined intervals along the outer shape detected by the outer shape detection unit. 1 point may be extracted as the first feature point. Further, the second extraction unit calculates the length of the line segment connecting a pair of outer shape points selected from a plurality of outer shape points respectively present on one side and the other side of the first feature point, as the first feature point. Is calculated in order from a closer position to a farther position, and the amount of change in the length of the line segment does not exceed the predetermined amount and the line segment farthest from the first feature point is detected, and 1 on the detected line segment A point may be extracted as the second feature point.
- the shape recognition device according to the third invention may be at least a finger, palm, hand, or arm of a human body.
- the anatomical features of the human finger, palm, hand, or arm can be easily recognized.
- the shape recognition device is the shape recognition device according to any one of the aspect and the fourth aspect of the invention, wherein the shape recognition device may further include an extending direction detection unit.
- the extension direction detection unit detects the direction in which the object extends.
- the extension direction detection unit may determine that the direction of the line segment connecting the first feature point and the second feature point is the extension direction of the object. In this case, the extending direction of the object can be known.
- the shape recognition device is the shape recognition device according to any one of the aspect and the fifth aspect, wherein the shape recognition device may further include a frame detection unit. Furthermore, the frame detection unit detects a rectangular frame surrounding a polygon whose vertex is a contour that is detected by the contour detection unit or a plurality of contour points that are generated based on the contour. The extending direction detection unit may detect the direction of the long side constituting the square frame.
- a shape recognition apparatus is the shape recognition apparatus according to any one of the fourth to sixth aspects, wherein the object may be a hand. Further, the first extraction unit extracts the point at the tip of the finger as the first feature point, and the second extraction unit recognizes the finger by extracting the point at the base of the finger as the second feature point. Also good.
- the tip and root of the finger can be recognized, the direction of the finger can be recognized. That is, it is possible to easily recognize a finger having a complicated shape.
- the shape recognition device is the shape recognition device according to any of the fourth to seventh aspects, wherein the shape recognition device may further include a palm recognition unit that recognizes a palm portion. Further, the palm recognizing unit may recognize the palm part based on the outer shape detected by the outer shape detecting unit or the maximum inscribed circle of a polygon having a plurality of outer shape points generated based on the outer shape. Good.
- the palm can be recognized easily and reliably.
- the shape recognition device is the shape recognition device according to any of the fourth to eighth aspects, wherein the shape recognition device may further include a thumb recognition unit that recognizes the thumb of the hand. Further, the thumb recognition unit may recognize the thumb based on at least one of the first feature point and the second feature point for the plurality of fingers.
- the presence or absence of the thumb can be easily and reliably recognized. Further, by recognizing the thumb, the back of the hand and the palm can be easily determined.
- a shape recognition apparatus is the shape recognition apparatus according to the ninth aspect of the invention, wherein the shape recognition apparatus may further include a hand shape identification unit. Furthermore, the hand shape identification unit may identify the shape of the hand based on information on the finger recognized by the first extraction unit and the second extraction unit and the thumb recognized by the thumb recognition unit.
- the shape recognition device is the shape recognition device according to any one of the tenth aspect from one aspect, and the outer shape detection unit may be an infrared camera.
- the outer shape of the object can be accurately detected by infrared rays.
- the shape recognition device is the shape recognition device according to any one of the eleventh aspect of the present invention, wherein the shape identification processing device may further include a display device capable of displaying a stereoscopic image. Further, the outer shape detection unit may include a depth sensor that measures the distance to the object. In addition, the outer shape detection unit determines the outer shape of the object in at least one of the depth detection region of the depth sensor and the shared region shared by the stereoscopic vision region and the depth detection region of the stereoscopic image generated by the display device. It may be detected.
- the viewing of the stereoscopic image in the shared area and the shape identification of the object existing in the field of view of the stereoscopic image can be performed simultaneously. That is, it is possible to identify the shape of the object while displaying a stereoscopic image.
- the depth refers to the distance from the depth sensor to the target object to be detected.
- a head-mounted display device includes the shape recognition device according to any one of claims 1 to 12.
- a head mounted display device has the shape recognition device according to any one of claims 1 to 12.
- the shape recognition device is provided in the head mounted display device, the shape recognition can be performed while being worn on the body.
- a shape recognition program includes an outer shape detection process for detecting an outer shape of an object, a first extraction process for extracting a first feature point on the outer shape based on the outer shape detected by the outer shape detection process, And a second extraction process for extracting a second feature point that exists on or within the outer shape and is different from the first feature point.
- the shape recognition program according to the thirteenth invention includes an outer shape detection process, a first extraction process, and a second extraction process.
- the outer shape detection process detects the outer shape of the object.
- the first extraction process extracts a first feature point on the outer shape based on the outer shape detected by the outer shape detection process.
- the second extraction process extracts a second feature point that exists on or within the outer shape of the object and is different from the first feature point.
- not only the first extraction unit but also the second extraction unit can extract not only the first feature point but also the second feature point.
- feature points increase, so that more accurate information for identifying the outer shape of the object can be obtained.
- the shape recognition program according to the fifteenth aspect of the invention may further include an extension direction detection process for detecting a direction in which the object extends in the shape recognition program according to another aspect.
- the extension direction detection process may determine that the direction of the line segment connecting the first feature point and the second feature point is the extension direction of the object.
- the extension direction of the object can be known.
- the shape recognition program according to the sixteenth invention may further include a frame detection process in still another aspect and the shape recognition program according to the fifteenth aspect. Further, the frame detection process may detect a rectangular frame surrounding a polygon whose apex is the outer shape detected by the outer shape detection process or a plurality of outer shape points generated based on the outer shape. In the extending direction detection process, the direction of the long side constituting the rectangular frame may be detected.
- the extension direction of the object can be known.
- the shape recognition program according to the seventeenth invention is the shape recognition program according to any of the sixteenth inventions from another aspect, wherein the object is a hand, and the first extraction process includes a first finger recognition process,
- the second extraction process may include a second finger recognition process.
- a point at the tip of the finger may be extracted as the first feature point.
- a point at the base of the finger may be extracted as the second feature point.
- the tip and root of the finger can be recognized, the direction of the finger can be recognized. That is, it is possible to easily recognize a finger having a complicated shape.
- the shape recognition program according to an eighteenth aspect of the invention may further include a palm recognition process for recognizing a palm part in the shape recognition program according to the seventeenth aspect of the invention.
- the palm portion may be recognized based on the outer shape detected by the outer shape detection process or the maximum inscribed circle of a polygon having a plurality of outer shape points generated based on the outer shape.
- the palm can be recognized easily and reliably.
- the shape recognition program according to a nineteenth aspect of the invention may further include a thumb recognition process for recognizing the thumb of the hand in the shape recognition program according to the seventeenth or eighteenth aspect of the invention.
- the thumb may be recognized based on at least one of the first feature point and the second feature point for a plurality of fingers.
- the presence or absence of the thumb can be easily and reliably recognized. Further, by recognizing the thumb, the back of the hand and the palm can be easily determined.
- the shape recognition program according to the twentieth invention may further include hand shape identification processing in the shape recognition program according to the nineteenth invention.
- the hand shape may be identified based on information on the finger recognized by the first extraction process and the second extraction process and the thumb recognized by the thumb recognition process.
- the shape recognition program according to the twenty-first invention may further include a display process capable of displaying a stereoscopic image in the shape recognition program according to any of the twentieth inventions from another aspect.
- the outer shape detection process includes a depth sensor process for measuring the distance to the object, and includes a depth detection area detected by the depth sensor process, and a stereoscopic vision area and a depth detection area of the stereoscopic image generated by the display process.
- the outer shape of the object may be detected in at least one of the shared areas shared by and.
- the viewing of the stereoscopic image in the shared area and the shape identification of the object existing in the field of view of the stereoscopic image can be performed simultaneously. That is, it is possible to identify the shape of the object while displaying a stereoscopic image.
- the depth refers to the distance from the depth sensor to the target object to be detected.
- a shape recognition method includes an outer shape detection step of detecting an outer shape of an object, a first extraction step of extracting a first feature point on the outer shape based on the outer shape detected by the outer shape detection step, A second extraction step of extracting a second feature point that exists on or within the outer shape and is different from the first feature point.
- the shape recognition method includes an outer shape detection step, a first extraction step, and a second extraction step.
- the outer shape detection step detects the outer shape of the object.
- the first extraction step extracts a first feature point on the outer shape based on the outer shape detected by the outer shape detection step.
- the second extraction step extracts a second feature point that exists on or within the outer shape of the object and is different from the first feature point.
- not only the first extraction unit but also the second extraction unit can extract not only the first feature point but also the second feature point.
- feature points increase, so that more accurate information for identifying the outer shape of the object can be obtained.
- the shape recognition method according to a twenty-third aspect of the present invention may further include an extending direction detecting step of detecting a direction in which the object extends in the shape recognition method according to another aspect.
- the extending direction detecting step may determine that the direction of the line segment connecting the first feature point and the second feature point is the extending direction of the object.
- the extension direction of the object can be known.
- the shape recognition method according to the twenty-fourth invention may further include a frame detection step in still another aspect and the shape recognition method according to the twenty-third aspect.
- the frame detection step may detect a rectangular frame surrounding a polygon whose apex is the outer shape detected by the outer shape detection step or a plurality of outer shape points generated based on the outer shape.
- the extending direction detecting step may detect the direction of the long side constituting the square frame.
- the extension direction of the object can be known.
- the shape recognition method according to a twenty-fifth aspect of the present invention is the shape recognition method according to any one of the twenty-fourth aspects of the present invention, wherein the object is a hand, and the first extraction step includes a first finger recognition step,
- the second extraction step may include a second finger recognition step.
- a point at the tip of the finger may be extracted as the first feature point.
- a point at the base of the finger may be extracted as the second feature point.
- the tip and root of the finger can be recognized, the direction of the finger can be recognized. That is, it is possible to easily recognize a finger having a complicated shape.
- the shape recognition method according to a twenty-sixth aspect of the invention may further include a palm recognition step of recognizing a palm part in the shape recognition method according to the twenty-fifth aspect of the invention.
- the palm portion may be recognized based on the outer shape detected by the outer shape detection step or a polygonal maximum inscribed circle having apexes of a plurality of outer shape points generated based on the outer shape.
- the palm can be recognized easily and reliably.
- the shape recognition method according to a twenty-seventh aspect of the invention may further include a thumb recognition step of recognizing the thumb of the hand in the shape recognition method according to the twenty-fifth or twenty-sixth aspect of the invention.
- the thumb may be recognized based on at least one of the first feature point and the second feature point for the plurality of fingers.
- the presence or absence of the thumb can be easily and reliably recognized. Further, by recognizing the thumb, the back of the hand and the palm can be easily determined.
- the shape recognition method according to a twenty-eighth aspect of the present invention is the shape recognition method according to the twenty-seventh aspect of the present invention, further comprising a hand shape identification step.
- the shape of the hand may be identified based on information on the finger recognized by the first extraction step and the second extraction step and the thumb recognized by the thumb recognition step.
- the shape recognition method according to a twenty-ninth aspect of the present invention may further include a display step capable of displaying a stereoscopic image in the shape recognition method according to any of the twenty-eighth aspects of the invention.
- the outer shape detection process includes a depth sensor process for measuring the distance to the object, and includes a depth detection area detected by the depth sensor process, and a stereoscopic vision area and a depth detection area of the stereoscopic image generated by the display process.
- the outer shape of the object may be detected in at least one of the shared areas shared by and.
- the viewing of the stereoscopic image in the shared area and the shape identification of the object existing in the field of view of the stereoscopic image can be performed simultaneously. That is, it is possible to identify the shape of the object while displaying a stereoscopic image.
- the depth refers to the distance from the depth sensor to the target object to be detected.
- a shape recognition device it is possible to provide a shape recognition device, a shape recognition program, and a shape recognition method that can obtain more accurate information for identifying the outer shape of an object.
- FIG. 1 is a schematic external perspective view showing an example of an eyeglass display device 100.
- FIG. 3 is a schematic diagram illustrating an example of a configuration of a control unit 450 of the operation system 400.
- FIG. 4 is a flowchart showing a flow of processing in the operation system 400. It is a schematic diagram which shows the concept according to the flowchart of FIG. 4 is a schematic perspective view for explaining a detection area of an infrared detection unit 410 and a virtual display area of a pair of transflective displays 220.
- FIG. FIG. 7 is a top view of FIG. 6.
- FIG. 7 is a side view of FIG. 6.
- FIG. 4 is a schematic diagram illustrating an example of display on a transflective display 220 of the eyeglass display device 100.
- FIG. It is a schematic diagram which shows an example (a) of the visual field of the transflective display 220, and an example (b) of a display of the translucent display 220.
- gesture recognition It is a schematic diagram which shows an example of gesture recognition. It is a schematic diagram which shows the other example of gesture recognition. It is a schematic diagram which shows the other example of gesture recognition. It is a schematic diagram which shows the other example of gesture recognition. It is a schematic diagram which shows the other example of gesture recognition. It is a schematic diagram which shows the other example of gesture recognition. It is a schematic diagram which shows the other example of gesture recognition. It is a schematic diagram which shows the other example of gesture recognition. It is a schematic diagram which shows the other example of gesture recognition. It is a schematic diagram which shows the other example of gesture recognition.
- the present invention is not limited to the eyeglass display device described below, but can be applied to other input / output devices, display devices, televisions, monitors, projectors, and the like.
- FIG. 1 is a schematic external front view showing an example of the basic configuration of a spectacle display device 100 according to an embodiment
- FIG. 2 is a schematic external perspective view showing an example of the spectacle display device 100.
- the glasses display device 100 is a glasses-type display device. As will be described later, the eyeglass display device 100 is used by being worn on the user's face.
- the eyeglass display device 100 mainly includes an eyeglass unit 200, a communication system 300, and an operation system 400.
- the spectacle unit 200 includes a spectacle frame 210 and a pair of transflective displays 220.
- the spectacle frame 210 mainly includes a rim unit 211 and a temple unit 212.
- a pair of transflective displays 220 is supported by the rim unit 211 of the spectacle frame 210.
- the pair of transflective displays 220 is provided on the rim unit 211 in the spectacle display device 100, but the present invention is not limited to this, and a normal sunglasses lens is provided on the rim unit 211 of the spectacle display device 100.
- lenses such as an ultraviolet cut lens or a spectacle lens may be provided, and a single transflective display 220 or a pair of transflective displays 220 may be provided separately. Further, the transflective display 220 may be embedded in a part of the lenses.
- the present embodiment is not limited to the eyeglass type, and can be used for a hat type or any other head mounted display device as long as it is a type that can be worn on the human body and disposed in the field of view of the wearer. .
- the communication system 300 includes a battery unit 301, an antenna module 302, a camera unit 303, a speaker unit 304, a GPS (Global Positioning System) unit 307, a microphone unit 308, a SIM (Subscriber Identity Module Card) unit 309, and a main unit 310.
- the camera unit may be provided with a CCD sensor.
- the speaker unit 304 may be a normal earphone or a bone conduction earphone.
- the SIM unit 309 includes an NFC (Near Field Communication) unit and other contact IC card units, and a non-contact IC card unit.
- the communication system 300 includes at least one of the functions of a mobile phone, a smartphone, and a tablet terminal. Specifically, it includes a telephone function, an Internet function, a browser function, a mail function, an imaging function, and the like. Therefore, the user can use a call function similar to that of a mobile phone by using the eyeglass display device 100 with the communication device, the speaker, and the microphone. Further, since it is a glasses type, it is possible to make a call without using both hands.
- the operation system 400 includes an infrared detection unit 410, a gyro sensor unit 420, an acceleration detection unit 430, and a control unit 450.
- the infrared detection unit 410 mainly includes an infrared irradiation element 411 and an infrared detection camera 412.
- FIG. 3 is a schematic diagram illustrating an example of the configuration of the control unit 450 of the operation system 400.
- the control unit 450 includes an image sensor calculation unit 451, a depth map calculation unit 452, an image processing unit 453, an anatomical recognition unit 454, a gesture data recording unit 455, a gesture identification unit 456, calibration data. It includes a recording unit 457, a composite arithmetic unit 458, an application software unit 459, an event service unit 460, a calibration service unit 461, a display service unit 462, a graphic arithmetic unit 463, a display arithmetic unit 464, and a six-axis drive driver unit 465.
- control unit 450 need not include all of the above, and may include one or more units as necessary.
- the gesture data recording unit 455 and the calibration data recording unit 457 may be arranged on the cloud, and the synthesis operation unit 458 may not be provided.
- FIG. 4 is a flowchart showing a flow of processing in the operation system 400
- FIG. 5 is a schematic diagram showing a concept corresponding to the flowchart of FIG.
- the target data is acquired from the infrared detection unit 410, and the depth calculation is performed by the depth map calculation unit 452 (step S1.
- the outer shape image data is processed by the image processing unit 453. (Step S2).
- the anatomical recognition unit 454 identifies anatomical features from the outline image data processed in step S2 based on the standard human body structure. Thereby, the outer shape is recognized (step S3).
- the gesture identification unit 456 identifies the gesture based on the anatomical features obtained in step S3 (step S4).
- the gesture identification unit 456 refers to the gesture data recorded in the gesture data recording unit 455 and identifies the gesture from the outer shape where the anatomical features are identified.
- the gesture identification unit 456 refers to the gesture data from the gesture data recording unit 455.
- the gesture identification unit 456 is not limited to referencing, and may refer to other arbitrary data without referring to it at all. It may be processed. As described above, the hand gesture is recognized as shown in FIG.
- the application software unit 459 and the event service unit 460 perform a predetermined event according to the gesture determined by the gesture identification unit 456 (step S5).
- the image by a photography application for example is displayed.
- the image data from the camera unit 303 may be displayed on the screen.
- the display service unit 462, the calibration service unit 461, the graphic operation unit 463, the display operation unit 464, and the composition operation unit 458 display an image on the translucent display 220 or a virtual display of the image (step).
- S6 As a result, a hand skeleton indicating a gesture is displayed as shown in FIG. 5C, and as shown in FIG. 5D, the shape and size of the photograph are changed to the shape and size of the skeleton. An image synthesized to match is displayed.
- the 6-axis drive driver unit 465 always detects signals from the gyro sensor unit 420 and the acceleration detection unit 430, and transmits the posture state to the display arithmetic unit 464.
- the 6-axis drive driver unit 465 When the user wearing the glasses display device 100 tilts the glasses display device 100, the 6-axis drive driver unit 465 always receives signals from the gyro sensor unit 420 and the acceleration detection unit 430, and displays an image. Take control. In this control, the display of the image may be kept horizontal, or the display of the image may be adjusted according to the inclination.
- FIG. 6 is a schematic perspective view for explaining a detection region of the infrared detection unit 410 and a virtual display region of the pair of transflective displays 220
- FIG. 7 is a top view of FIG. 6
- FIG. FIG. 7 is a side view of FIG. 6.
- a three-dimensional orthogonal coordinate system including an x-axis, a y-axis, and a z-axis is defined.
- the x-axis arrows in the following figures indicate the horizontal direction.
- the y-axis arrow points in the vertical direction or the long axis direction of the user's body.
- the z-axis arrow points in the depth direction.
- the z-axis positive direction refers to the direction of greater depth.
- the direction of each arrow is the same in other figures.
- a three-dimensional space detection area (3D space) 4103 ⁇ / b> D that can be detected by the infrared detection unit 410 of the operation system 400 is provided.
- the three-dimensional space detection area 4103D is formed of a conical or pyramidal three-dimensional space from the infrared detection unit 410.
- the infrared detection unit 410 can detect the infrared rays emitted from the infrared irradiation element 411 by the infrared detection camera 412, and thus can recognize a gesture in the three-dimensional space detection region 4103D.
- one infrared detection unit 410 is provided.
- the present invention is not limited to this, and a plurality of infrared detection units 410 may be provided, or one infrared irradiation element 411 may be provided.
- a plurality of detection cameras 412 may be provided.
- the pair of transflective displays 220 displays to the user a virtual image display that is not a part of the glasses display device 100 that is actually provided, but is located away from the glasses display device 100.
- the region 2203D is visually recognized as being virtually displayed with a depth.
- the depth corresponds to the thickness in the depth direction (z-axis direction) of the virtual three-dimensional shape of the virtual image display area 2203D. Therefore, the depth is provided according to the thickness of the virtual three-dimensional shape in the depth direction (z-axis direction).
- the user recognizes the right-eye image through the right-eye semi-transmissive display 220 in the three-dimensional space area 2203DR, and the left-eye image is The light is transmitted through the transflective display 220 on the left eye side and recognized by the three-dimensional space area 2203DL.
- both recognized images are synthesized in the user's brain, and can be recognized as a virtual image in the virtual image display area 2203D.
- the virtual image display area 2203D includes a frame sequential method, a polarization method, a linear polarization method, a circular polarization method, a top-and-bottom method, a side-by-side method, an anaglyph method, a lenticular method, and a parallax barrier method.
- the liquid crystal parallax barrier method, the two-parallax method, and the multi-parallax method using three or more parallaxes are used for display.
- the virtual image display area 2203D has a spatial area shared with the three-dimensional space detection area 4103D.
- the virtual image display area 2203D since the virtual image display area 2203D exists inside the three-dimensional space detection area 4103D, the virtual image display area 2203D serves as a shared area.
- the shape and size of the virtual image display area 2203D can be arbitrarily adjusted by the display method on the pair of transflective displays 220. Moreover, as shown in FIG. 8, although the case where the infrared detection unit 410 is arrange
- FIGS. 6 to 8 are schematic diagrams illustrating other examples of the detection area and the virtual display area illustrated in FIGS. 6 to 8.
- an input / output device 900 For example, as shown in FIGS. 9 to 11, other input / output devices, display devices, televisions, monitors, and the like may be used instead of the transflective display 220 of the eyeglass display device 100.
- other input / output devices, display devices, televisions, monitors, and projectors are collectively referred to as an input / output device 900.
- the virtual image display area 2203D is output from the input / output device 900 in the negative z-axis direction, and the infrared detection unit 410 disposed at a position facing the input / output device 900 in the z-axis direction outputs the z-axis.
- a three-dimensional space detection region 4103D may be formed in the positive direction.
- a virtual image display area 2203D by the input / output device 900 is generated as a space area shared with the three-dimensional space detection area 4103D.
- a virtual image display area 2203D is output from the input / output device 900, and the infrared detection unit 410 is in the same direction as the input / output device 900 (all directions on the z-axis positive side with respect to the xy plane).
- the three-dimensional space detection region 4103D may be formed. Even in this case, the virtual image display area 2203D by the input / output device 900 is generated as a space area shared with the three-dimensional space detection area 4103D.
- the virtual image display area 2203 ⁇ / b> D may be output from the input / output device 900 in a vertically upward direction (y-axis positive direction). Also in FIG. 11, similarly to FIGS. 9 and 10, the virtual image display area 2203 ⁇ / b> D by the input / output device 900 is generated as a space area shared with the three-dimensional space detection area 4103 ⁇ / b> D.
- the input / output device 900 is arranged above the three-dimensional space detection region 4103D (y-axis positive direction side), and the virtual image display region 2203D is vertically downward (y-axis negative direction). It may be output, may be output from the horizontal direction (x-axis direction), or may be output from the rear upper side (z-axis positive direction and y-axis positive direction) like a projector or a movie theater.
- FIGS. 12 and 13 are schematic diagrams illustrating examples of the operation area and the gesture area in the detection area.
- the user horizontally moves both hands around the shoulder joints of the right shoulder joint RP and the left shoulder joint LP, so that the area where both hands can move is surrounded by a dotted line.
- the moving area L and the moving area R become the same.
- the user vertically moves both hands around the shoulder joints of the right shoulder joint RP and the left shoulder joint LP, so that the area where both hands can move is surrounded by a dotted line.
- the moving area L and the moving area R become the same.
- the user has a spherical shape (having an arch-shaped curved surface convex in the depth direction) with both hands rotating around the right shoulder joint RP and the left shoulder joint LP, respectively. Can be moved.
- the three-dimensional space detection area 4103D by the infrared detection unit 410 the area where the virtual image display area may exist (the virtual image display area 2203D is illustrated in FIG. 12), the arm movement area L, and the movement area R are combined.
- a space area that overlaps with the selected area is set as the operation area 410c.
- a portion other than the operation region 410c in the three-dimensional space detection region 4103D and a portion overlapping with the combined region of the arm movement region L and the movement region R is set as the gesture region 410g.
- the operation region 410c has a three-dimensional shape in which the surface farthest in the depth direction is a curved surface curved in an arch shape convex in the depth direction (z-axis positive direction), whereas the virtual image display region 2203D has a depth of The surface farthest in the direction has a three-dimensional shape that is a plane.
- the user feels uncomfortable in the operation.
- adjustment is performed by a calibration process. Details of the calibration process will be described later.
- FIG. 14 is a flowchart for explaining the calibration process.
- a calibration process is performed to facilitate the operation in the virtual image display area 2203D by a recognition process described later.
- the finger length, hand length, and arm length that are different for each user are also adjusted.
- the user wears the eyeglass display device 100 and extends both arms to the maximum.
- the infrared detection unit 410 recognizes the maximum area of the operation area 410c (step S11). That is, since the length of the finger, the length of the hand, and the length of the arm, which are different for each user, are different depending on the user, the operation area 410c is adjusted.
- the display position of the virtual image display area 2203D is determined (step S12). That is, if the virtual image display area 2203D is arranged outside the operation area 410c, the operation by the user becomes impossible, so the virtual image display area 2203D is arranged inside the operation area 410c.
- the maximum area of the gesture area 410g is set in a position that does not overlap the display position of the virtual image display area 2203D within the three-dimensional space detection area 4103D of the infrared detection unit 410 of the eyeglass display device 100 (step S13).
- the gesture region 410g is preferably arranged so as not to overlap the virtual image display region 2203D and has a thickness in the depth direction (z-axis positive direction).
- the operation area 410c, the virtual image display area 2203D, and the gesture area 410g are set by the above method.
- step) S14 When it is determined that the user's finger, hand, or arm exists outside the virtual image display area 2203D in the operation area 410c, rounding is performed so that the user's finger, hand, or arm exists inside the virtual image display area 2203D (step) S14).
- both hands remain in the virtual image display area 2203D. Without any deviation in the depth direction (z-axis positive direction). Further, at the end of the virtually displayed image, it is not determined that both hands are present in the virtual image display area 2203D unless both arms are extended to the maximum. Therefore, if the signal from the infrared detection unit 410 is used without processing, even if the user moves away from the virtual image display area 2203D, it is difficult for the user to experience such a state.
- the signal from the infrared detection unit 410 is processed so as to correct the hand protruding outside from the virtual image display area 2203D within the virtual image display area 2203D. To do. As a result, the user can operate from the center to the end of the flat virtual image display area 2203D having a depth with both arms extended to the maximum or slightly bent.
- the virtual image display area 2203D is made up of a three-dimensional space area whose plane farthest in the depth direction is a plane, but is not limited to this, and is the plane area farthest in the depth direction. It is good also as consisting of the three-dimensional space area
- the transflective display 220 displays a rectangular image in the virtual image display area 2203D. For example, as shown in FIG. 5B, a rectangular image is displayed (step S15). Subsequently, display is performed when the periphery of the image is surrounded by a finger on the transflective display 220 (step S16).
- a finger-shaped image may be displayed lightly in the vicinity of the image, or an instruction may be transmitted from the speaker to the user by voice instead of being displayed on the transflective display 220.
- the user places his / her finger on the portion where the image can be seen as shown in FIG. Then, the correlation between the display area of the virtual image display area 2203D and the infrared detection unit 410 is automatically adjusted (step S17).
- a rectangle is formed with a finger, and is matched with the rectangle thus determined and the rectangle of the outer edge of the image.
- the rectangular viewing size and position determined by the finger are matched with the rectangular viewing size and position of the outer edge of the image.
- the method of determining the shape with the finger is not limited to this, and any other method such as a method of tracing the outer edge of the displayed image with a finger, a method of pointing a plurality of points on the outer edge of the displayed image with a finger, etc. It may be. Moreover, you may perform these methods about the image of several sizes.
- FIG. 15 is a schematic diagram illustrating an example of finger recognition.
- 15A is an enlarged view of the vicinity of the tip of the finger
- FIG. 15B is an enlarged view of the vicinity of the base of the finger.
- FIG. 16 is a flowchart illustrating an example of finger recognition processing.
- the device is initialized (step S21).
- the infrared ray irradiated from the infrared irradiation element 411 and reflected by the hand is detected by the infrared detection camera 412 (step S22).
- the image data is replaced with a distance in units of pixels by the infrared detection unit 410 (step S23).
- the brightness of infrared rays is inversely proportional to the cube of the distance.
- a depth map is created (step S24).
- an appropriate threshold value is provided for the created depth map.
- the image data is binarized (step S25), that is, noise in the depth map is removed.
- a polygon having about 100 vertices is created from the binarized image data (step S26).
- a low-pass filter (LPF) so the vertex becomes smooth, by creating a new polygon having more vertexes p n, it extracts the outline OF hand shown in FIG. 15 (step S27).
- the number of vertices extracted to create a polygon from the binarized data in step S26 is about 100.
- the number of vertices is not limited to this, and 1000 or any other arbitrary number is used. It may be a number.
- step S28 From the set of vertices p n of new polygons created in step S27, using Convex Hull, it extracts the hull (step S28). Thereafter, a shared vertex p 0 between the new polygon created in step S27 and the convex hull created in step S28 is extracted (step S29).
- the shared vertex p 0 itself extracted in this way can be used as the finger tip point. Further, another point calculated based on the position of the vertex p 0 may be used as the tip point of the finger. For example, it is also possible to calculate the center of the inscribed circle of the contour OF as the tip points P0 at the vertex p 0 as shown in FIG. 15 (A).
- a vector of the reference line segment PP 1 passing through the pair of left and right vertices p 1 adjacent to the vertex p 0 is calculated.
- the side pp 2 connecting the vertex p 1 and the adjacent vertex p 2 is selected, and its vector is calculated.
- the vertex p n constituting the outer OF was selected, and its vector is calculated.
- Examined the reference line segment PP 1 direction by the processing direction and step S30 of each side determines that the sides pp k comprising parallel close to the reference line segment PP 1 is present at the position of the crotch of the finger.
- the root point P1 of the finger is calculated (step S30).
- a finger skeleton is obtained by connecting the finger tip point P0 and the finger root point P1 with a straight line (step S31).
- the extension direction of the finger can be recognized.
- skeletons for all fingers are obtained. Thereby, the hand pose can be recognized. That is, it is possible to recognize which of the thumb, the index finger, the middle finger, the ring finger, and the little finger is spread and which finger is gripped.
- a difference in hand pose is detected in comparison with the image data of several frames performed immediately before (step S32). That is, the hand movement can be recognized by comparing with the image data of the last several frames.
- the recognized hand shape is delivered to the event service unit 460 as gesture data (step S33).
- step S34 the application software unit 459 performs a behavior corresponding to the event.
- the display service unit 462 requests drawing in the three-dimensional space (step S35).
- the graphic operation unit 463 refers to the calibration data recording unit 457 using the calibration service unit 461, and corrects the display (step S36).
- display is performed on the transflective display 220 by the display arithmetic unit 464 (step S37).
- the root point of the finger is detected by the process of step S30 and the process of step S31, but the root point detection method is not limited to this.
- the length of the reference line segment PP 1 that connects a pair of adjacent vertices p 1 on one side and the other side of the vertex p 0 is calculated.
- the length of a line connecting between the pair of vertices p 2 at the one side and the other side is calculated.
- the length of the line segment connecting the pair of vertices on the one side and the other side is calculated in the order from the vertex located closer to the vertex p 0 to the vertex located further away.
- Such line segments are approximately parallel to each other without intersecting within the outer shape OF.
- the root point can be determined by detecting the line segment that does not exceed the predetermined amount and the farthest from the apex p 0 and extracts one point on the detected line segment. .
- FIG. 17 is a schematic diagram illustrating an example of palm recognition.
- the maximum inscribed circle C inscribed in the outer shape OF of the image data is extracted.
- the position of the maximum inscribed circle C can be recognized as the palm position.
- FIG. 18 is a schematic diagram showing an example of thumb recognition.
- the thumb has characteristics different from the other four fingers of the index finger, the middle finger, the ring finger, and the little finger.
- ⁇ 1 involving the thumb tends to be the largest.
- ⁇ 11 involving the thumb tends to be the largest.
- the thumb is determined based on such a tendency. As a result, it is possible to determine whether it is the right hand or the left hand, or the front or back of the palm.
- arm recognition Next, arm recognition will be described. In the present embodiment, arm recognition is performed after any of a finger, palm, and thumb is recognized. Note that the arm recognition may be performed before recognizing any one of the finger, the palm, and the thumb, or at least one of them.
- the polygon is extracted in a larger area than the hand-shaped polygon of the image data.
- the process of steps S21 to S27 is performed in a range of 5 cm to 100 cm in length, and more preferably in a range of 10 cm to 40 cm to extract the outer shape.
- a rectangular frame circumscribing the extracted outer shape is selected.
- the square frame is a parallelogram or a rectangle.
- the extension direction of the arm can be recognized from the extension direction of the long side, and the direction of the arm can be determined from the direction of the long side. I can do it.
- the movement of the arm may be detected in comparison with the image data of the previous few frames.
- the finger, palm, thumb, and arm are detected from the two-dimensional image.
- the present invention is not limited to the above, and the infrared detection unit 410 may be further added, and only the infrared detection camera 412 is used. May be added to recognize a three-dimensional image from a two-dimensional image. As a result, the recognition accuracy can be further increased.
- FIG. 19 is a schematic diagram illustrating an example of display on the transflective display 220 of the eyeglass display device 100.
- an advertisement 221 is displayed on a part of the transflective display 220 of the glasses display device 100, a map 222 is displayed on a part of the display, and the other part is a half of the glasses display device 100.
- a landscape 223 is visually recognized through the transmissive display 220, and a weather forecast 224 and a time 225 are also displayed.
- FIG. 20A illustrates an example of the field of view of the translucent display 220
- FIG. 20B illustrates an example of the display of the translucent display 220.
- the display that can be viewed by the eyeglass display device 100 is composed of a plurality of displays 701 to 707.
- a plurality of displays are segments forming a part of a continuous image in which all of them are integrated. By switching the visible portion of the continuous image, a switching display is performed in which a plurality of displays are smoothly transitioned without being interrupted.
- displays 703, 702, 701, 704, and 705 are provided in the vertical direction, and displays 706 and 707 are provided on the left and right with the display 701 as the center.
- the displays 701 to 707 can be freely deleted or changed by the user, and other displays can be added.
- the displays 701 to 707 are seamless continuous images, but the display to be switched may be an independent non-continuous image.
- the display 701 is displayed when the posture of the eyeglass display device 100 is horizontal, that is, when the user wears the eyeglass display device 100 and faces horizontally.
- a display 702 is displayed. That is, the direction in which the user faces is recognized based on a signal from at least one of the gyro sensor unit 420 and the acceleration detection unit 430 in the eyeglass display device 100.
- the display 702 may display a screen of a face recognition application, for example.
- a display 703 is displayed.
- a weather forecast may be displayed on the display 703.
- other sky information may be displayed on the display 703.
- an image of a constellation may be displayed depending on the time zone.
- a display 704 for example, a mail screen
- Display 705 for example, a map
- a display 706 for example, an Internet browser
- a display 707 for example, a call screen
- the display 701 to the display 707 are switched based on a signal from at least one of the gyro sensor unit 420 and the acceleration detection unit 430.
- the present invention is not limited to this. Switching may be performed by palm and arm recognition.
- the gyro sensor unit is a condition for switching at least one of the display 701 to the display 702, the display 701 to the display 704, the display 701 to the display 707, and the display 701 to the display 706.
- the level of the signal from at least one of 420 and the acceleration detection unit 430 may be set higher. Thereby, it is possible to prevent the display 701 from being switched to another display in a short time during walking. Moreover, when turning around urgently, a setting that is not particularly switched may be provided.
- the sky information display 703 and the map information display 705 may be panoramic displays. In this case, the displays 703 and 705 may be scrolled in accordance with the movement in the left-right direction.
- FIG. 21 is a schematic diagram illustrating an example of a predetermined event occurrence
- FIG. 22 is a schematic diagram illustrating another example of the event occurrence of FIG. 21,
- FIG. 23 is a schematic diagram illustrating an example of another event occurrence.
- the shape of the hand H1 detected by the infrared detection unit 410 is displayed on the virtual image. Further, when the user's hand is away from the operation area 410c, a shadow H2 having the shape of the hand H1 is displayed as an example of the event. Thereby, the user can easily recognize that the hand is present in the gesture region 410g.
- the shape of the hand H1 detected by the infrared detection unit 410 is displayed in the virtual image, and a shadow H3 that is darker than the shadow H2 has a small area around the shape of the hand H1. Is displayed. Therefore, the user can easily recognize that the hand is closer to the operation area 410c than in the case of FIG. Further, when the hand is in the operation area 410c, the shadows H2 and H3 are not displayed.
- the user does not need to search the operation area 410c by trial and error or groping. That is, the distance to the operation area 410c can be easily recognized based on the density of the shadow and how the hand shape deviates from the shadow.
- the circle display H4 may be performed on the fingertip.
- the present invention is not limited to this, and a ripple is generated in the display when it is within the operation area 410c.
- the vibration generation device may be provided in the eyeglass display device 100 to generate vibration, sound may be generated, or the display may be changed depending on at least one of the display blinking mode and the lighting illuminance. Good.
- the distance to the operation area 410c may be represented by a blinking interval, and the distance to the operation area 410c may be represented by lighting illuminance.
- lighting in darker colors red, black, purple, etc.
- lighting in lighter colors blue, yellow, pink, etc.
- Other human senses typically visual, auditory and tactile) ) May be triggered by any event.
- the virtual image display can be operated.
- the virtual image display can be enlarged or reduced, the display can be scrolled, or a point can be selected.
- additional display may be performed by touching the display of the advertisement 221.
- the advertisement 221 displays information such as merchandise and services of the store.
- more detailed information regarding the store may be additionally displayed.
- the advertisement 221 may be an image of the store itself taken by the camera unit 303, or automatically starts store recognition based on image data of the store by the camera unit 303.
- the store recognition application It may be recognition result information displayed on the screen.
- Display in parody mode In addition, as shown in FIG. 25, when a logo mark of one company (XX company) is displayed on the transflective display 220, a competition or non-competition can be achieved by touching the logo mark on the screen. Information related to other companies ( ⁇ company) can be displayed. In this case, for example, a logo of the other company may be displayed as a parody mode.
- a menu screen V1 is displayed between the thumb and index finger. Also good.
- a predetermined image V2 may be displayed between the index finger and the middle finger.
- the face recognition application when the hand H1 is lightly opened and moved in the direction of the arrow by greeting, the face recognition application is automatically activated. Face recognition is automatically started based on the face data of the other person acquired by the camera unit 303, and information such as name, company name, job title, date and place of the last meeting is displayed on the face recognition application screen V3. . Further, a flag may be set each time the same person is recognized by the recognition of the face recognition application, and the number of flags may be displayed on the face recognition application screen V3. In this case, the background and color of the face recognition application screen V3 may be varied depending on the number of flags.
- the SNS (SOCIAL NETWORKING SERVICE) application can be automatically started and the SNS application screen V5 can be displayed.
- the kanji application is activated and the index finger of the hand H1 is recognized to display an additional brush image at the position of the index finger. .
- the sword application is activated, and a sword image is additionally displayed at the position of the hand on the sword, and the virtual image display screen V7 is cut. it can.
- the shape recognition device not only the vertex p 0 or the tip point P 0 which is a point indicating the feature of the tip of the finger, but also the second extraction unit as well as the first extraction unit, A root point P1, which is a point indicating the feature of the finger base, can be extracted.
- feature points increase, so that more accurate information for identifying the outer shape OF of the hand H1 can be obtained.
- the first extraction unit based on the contour detected by the infrared detection unit 410 generates a contour OF is a polygon having a plurality of vertices p n as the outline point, vertices p n from a point p 0 contour oF extracted as a point showing a characteristic of a tip of the finger, further second extraction portion are located on opposite sides of the vertex p 0 as a point indicating the characteristics of the tip of the finger calculating a direction of the reference line segment PP 1 connecting the pair of vertices p 1, in order along the apex p n to the outer periphery of the outer oF, calculates the direction of the sides of the outer oF, the direction of the reference line segment PP 1
- a point based on the position of the detected side pp k is extracted as a point indicating the feature of
- the first extraction unit detects a plurality of vertices pn as outer shape points at predetermined intervals along the outer shape detected by the infrared detection unit 410, and starts from the vertices pn.
- the second extraction unit selected from the plurality of vertices p n at each occurrence in the side and the other side of the vertex p 0
- the length of the line segment pp 2 connecting the vertices (for example, p 2 ) is calculated in order from a position closer to the vertex p 0 to a position farther from the vertex p 0 , and the amount of change in the length of the line segment does not exceed a predetermined amount and A line segment farthest from the first feature point is detected, and one point on the detected line segment can be extracted as a point indicating the feature of the finger base. Therefore, it is possible to easily know the position of the portion where the feature of the outer shape of the hand H1 occurs.
- the object is the hand H1
- the anatomical features of the human finger, palm, hand, or arm can be easily recognized.
- the extension direction detection unit causes the point indicating the feature of the finger tip (vertex p 0 or the tip point P 0) and the point indicating the feature of the finger base (root point P 1). It can be determined that the direction of the line connecting the two is the extending direction of the finger. That is, it is possible to easily recognize a finger having a complicated shape.
- the palm recognition unit recognizes the palm portion based on the maximum inscribed circle C of the polygon as the outer shape OF, so that the palm can be recognized easily and reliably. .
- the gesture identification unit 456 can easily identify the hand pose that can take a complicated shape.
- the shape recognition device of the present invention since the infrared detection unit 410 is used, the outer shape of the hand H1 can be accurately detected by infrared rays.
- the transflective display 220 capable of displaying a stereoscopic image is included, the infrared detection unit 410 includes a depth sensor that measures the distance to the hand H1, and the infrared detection unit. 410 is at least one of a three-dimensional space detection region 4103D by the depth sensor and a shared region where the virtual image display region 2203D of the stereoscopic image generated by the semi-transmissive display 220 and the three-dimensional space detection region 4103D are shared.
- the outer shape of the hand H1 can be detected, it is possible to simultaneously recognize the stereoscopic image in the shared area and identify the shape of the hand H1 existing in the field of view of the stereoscopic image. That is, the shape of the hand H1 can be identified while displaying a stereoscopic image.
- the shape recognition device since the shape recognition device according to the present invention is embodied as the eyeglass display device 100 together with other configurations, the shape recognition of the hand H1 can be performed while being worn on the body.
- the control unit 450 corresponds to the “shape recognition device”, the hand H1 and the finger of the hand H1 correspond to the “object”, and the outer shape OF corresponds to “the outer shape detected by the outer shape detection unit”.
- the vertex p 0 is the "first characteristic point”
- "point of the tip portion” root point P1 corresponds to the "second feature point” and "point of the root portion”
- the vertex p n is "multiple It corresponds to the “outline point”
- the vertex p 1 constitutes “a pair of vertices located on both sides of the first feature point”
- the reference line segment PP 1 is “a pair of vertices located on both sides of the first feature point”
- the sides pp 2 and pp k are equivalent to “sides forming the polygon”
- pp k is equivalent to “the side of the polygon having the direction closest to the parallel”.
- the point P1 corresponds to the “second feature point”
- the maximum inscribed circle C corresponds to the “maximum inscribed circle”
- the transflective display 22 Corresponds to the “display device”
- the infrared detection unit 410 corresponds to the “depth sensor”
- the virtual image display area 2203D corresponds to the “stereoscopic area”
- the three-dimensional space detection area 4103D corresponds to the “depth detection area”.
- the shared area (corresponding to the virtual image display area 2203D) corresponds to the “shared area”
- the eyeglass display device 100 corresponds to the “head mounted display device”.
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Abstract
Description
特許文献1に記載の高速画像生成表示方法においては、立体構造をもつ対象を2次元画面に投影して表示する高速画像生成表示方法であって、対象の構成面は、対象座標系において、領域の大きさを少なくとも1つの要素として階層的に記述され、任意の視点から見た時の該対象の構成面を2次元画面へ投影するに際して、表示基準座標系原点または視点から対象座標系で表される該対象の任意の点までの距離を少なくとも1つのパラメータとして階層度を設定することを特徴とする。
特許文献2に記載の立体視画像生成方法は、三次元座標を有するポリゴンで構成されるオブジェクトのうち、平面視表示させるオブジェクトデータを基準カメラを原点とする基準カメラ座標系データに、立体視表示させるオブジェクトのデータを所定の視差角を有する右眼用及び左眼用視差カメラをそれぞれ原点とする右眼用及び左眼用視差カメラ座標系データに変換し、基準カメラ座標系のオブジェクトのデータと、右眼用視差カメラ座標系のオブジェクトのデータを右眼用画像データとして、ビデオメモリに描画し、基準カメラ座標系のオブジェクトのデータと、左眼用視差カメラ座標系のオブジェクトのデータを左眼用画像データとして、ビデオメモリに描画し、ビデオメモリに描画された右眼用画像データと左眼用画像データを合成して、立体視オブジェクトと平面視オブジェクトの混在する画像を立体視表示装置に表示することを特徴とする。
特許文献3に記載の方法は、ユーザの気質を示す属性を視覚表示に適用するための方法であって、ユーザの視覚表示をレンダリングするステップと、物理的な空間のデータを受信するステップであって、データが、物理的な空間内のユーザを代表しているものと、ユーザの気質を推論するために、少なくとも1つの検出可能な特徴を解析するステップと、ユーザの気質を示す属性を視覚表示に適用するステップと、を含む。
特許文献4に記載のシステムは、入力デバイスと、プロセッサに結合され、入力デバイスの方位を検出する検出器と、を備えているシステムであって、入力デバイスが、方位に対応する複数のモード方位を有し、複数のモード方位が、ジェスチャ制御システムの複数の入力モードに対応し、検出器が、ジェスチャ制御システムに結合され、方位に応答して、複数の入力モードからの入力モードの選択を自動的に制御する。
一局面に従う形状認識装置は、対象物の外形を検知する外形検知部と、外形検知部により検知された外形に基づいて、外形上の第1特徴点を抽出する第1抽出部と、外形上または外形内に存在しかつ第1特徴点とは異なる第2特徴点を抽出する第2抽出部と、を含むものである。
第2の発明にかかる形状認識装置は、一局面に従う形状認識装置において、第1抽出部は、外形検知部によって検知された外形に基づき、複数の外形点を頂点とする多角形を生成し、多角形の頂点から1点を第1特徴点として抽出してもよい。
さらに、第2抽出部は、第1特徴点の両側に位置する一対の頂点を結ぶ線分の方向を算出し、第1特徴点から多角形の外周に沿って順に、多角形を構成する辺の方向を算出し、当該線分の方向に対して最も平行に近い方向を有する多角形の辺が検知された場合に、当該検知された辺の位置に基づいた点を第2特徴点として抽出してもよい。
第3の発明にかかる形状認識装置は、一局面に従う形状認識装置において、第1抽出部は、外形検知部によって検知された外形に沿って所定の間隔で複数の外形点を検知し、外形点から1点を第1特徴点として抽出してもよい。
さらに、第2抽出部は、第1特徴点の一方の側と他方の側とにそれぞれ存在する複数の外形点から選択された一対の外形点を結ぶ線分の長さを、第1特徴点により近い位置からより遠い位置への順で算出し、線分の長さの変化量が所定量を超えず且つ第1特徴点から最も遠い線分を検知し、検知された線分上の1点を第2特徴点として抽出してもよい。
第3の発明にかかる形状認識装置は、一局面および第3の発明のいずれかにかかる形状認識装置において、対象物は、少なくとも人体の指、掌、手、または腕であってよい。
第5の発明にかかる形状認識装置は、一局面および第4の発明のいずれかにかかる形状認識装置において、形状認識装置は、延在方向検出部をさらに含んでもよい。
この場合、対象物の延在方向を知ることができる。
第6の発明にかかる形状認識装置は、一局面および第5の発明のいずれかにかかる形状認識装置において、形状認識装置は、枠検出部をさらに含んでもよい。
さらに、枠検出部は、外形検知部により検知された外形、または当該外形に基づいて生成される複数の外形点を頂点とする多角形を囲む四角枠を検出する。延在方向検出部は、四角枠を構成する長辺の方向を検出してもよい。
第7の発明にかかる形状認識装置は、第4から第6の発明のいずれかにかかる形状認識装置において、対象物は手であってよい。さらに、第1抽出部は、第1特徴点として指の先端部の点を抽出し、第2抽出部は、第2特徴点として指の根元部の点を抽出することにより指を認識してもよい。
第8の発明にかかる形状認識装置は、第4から第7の発明のいずれかにかかる形状認識装置において、形状認識装置は、掌部分を認識する掌認識部をさらに含んでもよい。
さらに、掌認識部は、外形検知部によって検知された外形、または当該外形に基づいて生成される複数の外形点を頂点とする多角形の最大内接円に基づいて掌部分を認識してもよい。
第9の発明にかかる形状認識装置は、第4から第8の発明のいずれかにかかる形状認識装置において、形状認識装置は、手の親指を認識する親指認識部をさらに含んでもよい。
さらに、親指認識部は、複数の指についての第1特徴点および第2特徴点の少なくともいずれかに基づいて親指を認識してもよい。
第10の発明にかかる形状認識装置は、第9の発明にかかる形状認識装置において、形状認識装置は、手形状識別部をさらに含んでもよい。
さらに、手形状識別部は、第1抽出部および第2抽出部により認識された指と親指認識部によって認識された親指との情報に基づいて手の形状を識別してもよい。
第11の発明にかかる形状認識装置は、一局面から第10の発明のいずれかにかかる形状認識装置において外形検知部は、赤外線カメラであってもよい。
第12の発明にかかる形状認識装置は、一局面から第11の発明のいずれかにかかる形状認識装置において形状識別処理装置は、立体視像を表示可能な表示装置をさらに含んでもよい。さらに、外形検知部は、対象物までの距離を測定する深度センサを含んでもよい。なおかつ、外形検知部は、深度センサの深度検知領域、および、表示装置により生成された立体視像の立体視領域と深度検知領域とが共有する共有領域の少なくともいずれかにおいて、対象物の外形を検知してもよい。
また、深度とは、深度センサから検知対象となる対象物までの距離をいう。
他の局面にかかるヘッドマウントディスプレイ装置は、請求項1から請求項12のいずれか1項に記載の形状認識装置を有するものである。
さらに他の局面に従う形状認識プログラムは、対象物の外形を検知する外形検知処理と、外形検知処理により検知された外形に基づいて、外形上の第1特徴点を抽出する第1抽出処理と、外形上または外形内に存在しかつ第1特徴点とは異なる第2特徴点を抽出する第2抽出処理とを含むものである。
第15の発明にかかる形状認識プログラムは、さらに他の局面に従う形状認識プログラムにおいて、対象物が延在する方向を検出する延在方向検出処理をさらに含んでもよい。延在方向検出処理は、第1特徴点と第2特徴点とを結ぶ線分の方向が対象物の延在方向であると判定してもよい。
第16の発明にかかる形状認識プログラムは、さらに他の局面および第15にかかる形状認識プログラムにおいて、枠検出処理をさらに含んでもよい。さらに、枠検出処理は、外形検知処理により検知された外形、または外形に基づいて生成される複数の外形点を頂点とする多角形を囲む四角枠を検出してもよい。延在方向検出処理は、四角枠を構成する長辺の方向を検出してもよい。
第17の発明にかかる形状認識プログラムは、さらに他の局面から第16のいずれかの発明にかかる形状認識プログラムにおいて、対象物は手であり、第1抽出処理は第1指認識処理を含み、第2抽出処理は第2指認識処理を含んでもよい。第1指認識処理は、第1特徴点として指の先端部の点を抽出してもよい。第2抽出処理は、第2特徴点として指の根元部の点を抽出してもよい。これら先端部の点と根元部の点とから、指を認識してもよい。
第18の発明にかかる形状認識プログラムは、第17の発明にかかる形状認識プログラムにおいて、掌部分を認識する掌認識処理をさらに含んでもよい。掌認識処理は、外形検知処理によって検知された外形、または外形に基づいて生成される複数の外形点を頂点とする多角形の最大内接円に基づいて掌部分を認識してもよい。
第19の発明にかかる形状認識プログラムは、第17または第18の発明にかかる形状認識プログラムにおいて、手の親指を認識する親指認識処理をさらに含んでもよい。親指認識処理は、複数の指についての第1特徴点および第2特徴点の少なくともいずれかに基づいて親指を認識してもよい。
第20の発明にかかる形状認識プログラムは、第19の発明にかかる形状認識プログラムにおいて、手形状識別処理をさらに含んでもよい。手形状識別処理は、第1抽出処理および第2抽出処理により認識された指と親指認識処理によって認識された親指との情報に基づいて手の形状を識別してもよい。
第21の発明にかかる形状認識プログラムは、さらに他の局面から第20の発明のいずれかにかかる形状認識プログラムにおいて、立体視像を表示可能な表示処理をさらに含んでもよい。外形検知処理は、対象物までの距離を測定する深度センサ処理を含み、且つ、深度センサ処理により検知される深度検知領域、および表示処理により生成された立体視像の立体視領域と深度検知領域とが共有する共有領域の少なくともいずれかにおいて、対象物の外形を検知してもよい。
また、深度とは、深度センサから検知対象となる対象物までの距離をいう。
さらに他の局面に従う形状認識方法は、対象物の外形を検知する外形検知工程と、外形検知工程により検知された外形に基づいて、外形上の第1特徴点を抽出する第1抽出工程と、外形上または外形内に存在しかつ第1特徴点とは異なる第2特徴点を抽出する第2抽出工程とを含むものである。
第23の発明にかかる形状認識方法は、さらに他の局面に従う形状認識方法において、対象物が延在する方向を検出する延在方向検出工程をさらに含んでもよい。延在方向検出工程は、第1特徴点と第2特徴点とを結ぶ線分の方向が対象物の延在方向であると判定してもよい。
第24の発明にかかる形状認識方法は、さらに他の局面および第23にかかる形状認識方法において、枠検出工程をさらに含んでもよい。枠検出工程は、外形検知工程により検知された外形、または外形に基づいて生成される複数の外形点を頂点とする多角形を囲む四角枠を検出してもよい。延在方向検出工程は、四角枠を構成する長辺の方向を検出してもよい。
第25の発明にかかる形状認識方法は、さらに他の局面から第24のいずれかの発明にかかる形状認識方法において、対象物は手であり、第1抽出工程は第1指認識工程を含み、第2抽出工程は第2指認識工程を含んでもよい。第1指認識工程は、第1特徴点として指の先端部の点を抽出してもよい。第2抽出工程は、第2特徴点として指の根元部の点を抽出してもよい。これら先端部の点と根元部の点とから、指を認識してもよい。
第26の発明にかかる形状認識方法は、第25の発明にかかる形状認識方法において、掌部分を認識する掌認識工程をさらに含んでもよい。掌認識工程は、外形検知工程によって検知された外形、または外形に基づいて生成される複数の外形点を頂点とする多角形の最大内接円に基づいて掌部分を認識してもよい。
第27の発明にかかる形状認識方法は、第25または第26の発明にかかる形状認識方法において、手の親指を認識する親指認識工程をさらに含んでもよい。親指認識工程は、複数の指についての第1特徴点および第2特徴点の少なくともいずれかに基づいて親指を認識してもよい。
第28の発明にかかる形状認識方法は、第27の発明にかかる形状認識方法において、手形状識別工程をさらに含んでもよい。手形状識別工程は、第1抽出工程および第2抽出工程により認識された指と親指認識工程によって認識された親指との情報に基づいて手の形状を識別してもよい。
第29の発明にかかる形状認識方法は、さらに他の局面から第28の発明のいずれかにかかる形状認識方法において、立体視像を表示可能な表示工程をさらに含んでもよい。外形検知工程は、対象物までの距離を測定する深度センサ工程を含み、且つ、深度センサ工程により検知される深度検知領域、および表示工程により生成された立体視像の立体視領域と深度検知領域とが共有する共有領域の少なくともいずれかにおいて、対象物の外形を検知してもよい。
また、深度とは、深度センサから検知対象となる対象物までの距離をいう。
220 半透過ディスプレイ
221 広告
2203D 仮想イメージ表示領域(共有領域)
300 通信システム
303 カメラユニット
410 赤外線検知ユニット
410c 操作領域
420 ジャイロセンサユニット
430 加速度検知ユニット
4103D 三次元空間検知領域
450 制御ユニット
454 解剖学的認識ユニット
456 ジェスチャ識別ユニット
460 イベントサービスユニット
461 キャリブレーションサービスユニット
701,~,707 表示
900 入出力装置
H1 手
H2,H3 陰影
RP 右肩関節
LP 左肩関節
OF 外形
pn,p0,p1 頂点
PP1 基準線分
pp2 辺
ppk 辺
P0 先端点
P1 根元点
C 最大内接円
V3 顔認識アプリ画面
V5 SNSアプリ画面
また、本発明は、以下に説明する眼鏡表示装置に限定されるものではなく、他の入出力装置、表示装置、テレビジョン、モニタ、プロジェクタ等にも適用することができる。
図1は、一実施の形態にかかる眼鏡表示装置100の基本構成の一例を示す模式的外観正面図であり、図2は、眼鏡表示装置100の一例を示す模式的外観斜視図である。
図1および図2に示すように、眼鏡ユニット200は、眼鏡フレーム210および一対の半透過ディスプレイ220からなる。眼鏡フレーム210は、主にリムユニット211、テンプルユニット212を含む。
眼鏡フレーム210のリムユニット211により一対の半透過ディスプレイ220が支持される。
また、当該レンズ類の一部に、半透過ディスプレイ220を埋め込んで設けてもよい。
次に、通信システム300について説明を行なう。
通信システム300は、バッテリーユニット301、アンテナモジュール302、カメラユニット303、スピーカユニット304、GPS(Global Positioning System)ユニット307、マイクユニット308、SIM(Subscriber Identity Module Card)ユニット309およびメインユニット310を含む。
なお、カメラユニットにはCCDセンサが備えられてよい。スピーカユニット304は、ノーマルイヤホンであってもよいし、骨伝導イヤホンであってもよい。SIMユニット309には、NFC(Near Field Communication:近距離無線通信)ユニットおよび他の接触式ICカードユニット、ならびに非接触式ICカードユニットを含む。
したがって、ユーザは、眼鏡表示装置100を用いて、通信装置、スピーカおよびマイクにより、携帯電話と同様の通話機能を使用することができる。また、眼鏡型であるので、両手を利用せず、通話を行なうことができる。
続いて、操作システム400は、赤外線検知ユニット410、ジャイロセンサユニット420、加速度検知ユニット430および制御ユニット450からなる。赤外線検知ユニット410は、主に赤外線照射素子411および赤外線検知カメラ412からなる。
ジェスチャ識別ユニット456は、ジェスチャデータ記録ユニット455に記録されたジェスチャデータを参照し、解剖学的特徴が識別された外形からジェスチャの識別を行なう。なお、ジェスチャ識別ユニット456は、ジェスチャデータ記録ユニット455からのジェスチャデータを参照することとしているが、参照することに限定されず、他の任意のデータを参照してもよく、全く参照することなく処理してもよい。
以上により、図5(a)に示すように、手のジェスチャを認識する。
これによって、図5(b)に示すように、たとえば写真アプリによる画像が表示される。この際、当該画面には、カメラユニット303からの撮像データが表示されてよい。
次に、操作システム400の赤外線検知ユニット410の検知領域と、一対の半透過ディスプレイ220の仮想表示領域との関係について説明を行なう。
図6は、赤外線検知ユニット410の検知領域と、一対の半透過ディスプレイ220の仮想表示領域とを説明するための模式的斜視図であり、図7は図6の上面図であり、図8は、図6の側面図である。
三次元空間検知領域4103Dは、赤外線検知ユニット410からの円錐状または角錐状の三次元空間からなる。
また、本実施の形態においては、赤外線検知ユニット410を1個設けることとしているが、これに限定されず、赤外線検知ユニット410を複数個設けてもよいし、赤外線照射素子411を1個、赤外線検知カメラ412を複数個設けてもよい。
すなわち、実際には眼鏡表示装置100の半透過ディスプレイ220に表示されるものの、ユーザは、右目のイメージは右目側の半透過ディスプレイ220を透過し三次元空間領域2203DRで認識し、左目のイメージは左目側の半透過ディスプレイ220を透過し三次元空間領域2203DLで認識する。その結果、認識された両イメージがユーザの脳内で合成されることにより、仮想イメージ表示領域2203Dで仮想イメージとして認識することができる。
また、図8に示すように、一対の半透過ディスプレイ220よりも赤外線検知ユニット410が上方(y軸正方向)に配設されている場合について説明しているが、鉛直方向(y軸方向)に対して、赤外線検知ユニット410の配設位置が半透過ディスプレイ220よりも下方(y軸負方向)または半透過ディスプレイ220と同位置であっても、同様に、仮想イメージ表示領域2203Dは、三次元空間検知領域4103Dと共有する空間領域を有する。
続いて、図9から図11は、図6から図8において示した検知領域と仮想表示領域との他の例を示す模式図である。
この場合、入出力装置900による仮想イメージ表示領域2203Dが、三次元空間検知領域4103Dと共有の空間領域として生じる。
この場合でも、入出力装置900による仮想イメージ表示領域2203Dが、三次元空間検知領域4103Dと共有の空間領域として生じる。
続いて、検知領域における操作領域とジェスチャ領域とについて説明する。図12および図13は、検知領域における操作領域と、ジェスチャ領域との一例を示す模式図である。
また、三次元空間検知領域4103D内における操作領域410c以外の部分で、かつ腕の移動領域Lおよび移動領域Rを合わせた領域と重なる部分をジェスチャ領域410gとして設定する。
次いで、キャリブレーション処理について説明を行なう。図14は、キャリブレーション処理の説明を行なうためのフローチャートである。
また、キャリブレーション処理には、ユーザの個々で異なる指の長さ、手の長さ、腕の長さの調整も行なう。
すなわち、ユーザによりユーザの個々で異なる指の長さ、手の長さ、腕の長さが異なるので、操作領域410cの調整を行なうものである。
なお、ジェスチャ領域410gは、仮想イメージ表示領域2203Dと重ならないように配置しかつ深さ方向(z軸正方向)に厚みを持たせることが好ましい。
そのため、赤外線検知ユニット410からの信号を無処理のまま使用すると、ユーザは、手先が仮想イメージ表示領域2203Dから外れたとしても、そのような状態であることを体感しにくい。
その結果、ユーザは、両腕を最大限に伸ばした状態、または少し曲げた状態で、奥行きのある平面状の仮想イメージ表示領域2203D内の中央部から端部まで操作することができる。
続いて、半透過ディスプレイ220に、像の周囲を指で囲んでくださいと、表示を行なう(ステップS16)。ここで、像の近傍に指の形の像を薄く表示してもよいし、半透過ディスプレイ220に表示を行なう代わりにスピーカから音声により指示をユーザに伝えてもよい。
なお、上記においては、指で矩形を形作り、そのように定められた矩形と、像の外縁の矩形にあわせる。このことによって、指により定められた矩形の視認サイズおよび位置と像の外縁の矩形の視認サイズ及び位置とを合わせることとした。しかしながら、指によって形状を定める手法はこれに限定されず、表示された像の外縁を指でなぞる手法、表示された像の外縁上の複数の点を指で指し示す手法等、他の任意の手法であってもよい。また、これらの手法を複数のサイズの像について行ってもよい。
次いで、指認識について説明を行い、その後掌認識、腕認識の順で説明を行なう。図15は、指認識の一例を示す模式図である。図15において、(A)は指の先端付近の拡大図であり、(B)は指の根元付近の拡大図である。図16は、指認識の処理の一例を示すフローチャートである。
次に、赤外線検知ユニット410により画像データをピクセル単位で距離に置き換える(ステップS23)。この場合、赤外線の明るさは、距離の三乗に反比例する。これを利用し、デプスマップを作成する(ステップS24)。
続いて、二値化した画像データから約100個の頂点を持つポリゴンを作成する(ステップS26)。そして、頂点が滑らかになるようにローパスフィルタ(LPF)により、より多くの頂点pnを有する新たな多角形を作成することによって、図15に示す手の外形OFを抽出する(ステップS27)。
なお、本実施の形態においては、ステップS26において二値化したデータからポリゴンを作成するために抽出する頂点の数を約100個としているが、これに限定されず、1000個、その他の任意の個数であってもよい。
その後、ステップS27で作成された新たな多角形と、ステップS28で作成された凸包との共有の頂点p0を抽出する(ステップS29)。このように抽出された共有の頂点p0自体を指の先端点として用いることができる。
さらに、頂点p0の位置に基づいて算出される他の点を指の先端点として用いてもよい。例えば、図15(A)に示すように頂点p0における外形OFの内接円の中心を先端点P0として算出することもできる。
全ての指について同様の処理を行なうことで、全ての指のスケルトンを得る。これにより、手のポーズを認識することができる。すなわち、親指、人差し指、中指、薬指、小指のいずれの指が広げられ、いずれの指が握られているかを認識することができる。
グラフィック演算ユニット463は、キャリブレーションサービスユニット461を用いてキャリブレーションデータ記録ユニット457を参照し、表示の補正を行なう(ステップS36)。
最後に、ディスプレイ演算ユニット464により半透過ディスプレイ220に表示を行なう(ステップS37)。
次いで、図17は、掌認識の一例を示す模式図である。
次いで、腕認識について説明を行なう。本実施の形態において、腕認識は、指、掌および親指のいずれかを認識した後に実施する。なお、腕認識は、指、掌および親指のいずれかを認識する前、またはそれらの少なくともいずれかと同時に実施してもよい。
その後、抽出した外形に外接する四角枠を選定する。本実施の形態においては、当該四角枠は、平行四辺形または長方形からなる。
この場合、平行四辺形または長方形は、対向する長辺を有するので、長辺の延在方向から腕の延在方向を認識することができ、長辺の向きから腕の向きを判定することが出来る。なお、ステップS32の処理と同様に、直前の数フレームの画像データと比較して、腕の動きを検知させてもよい。
次に、図19は、眼鏡表示装置100の半透過ディスプレイ220の表示の一例を示す模式図である。
次に、眼鏡表示装置100の半透過ディスプレイ220に表示される表示の一例について説明を行なう。図20(a)は、半透過ディスプレイ220の視野の一例、図20(b)は、半透明ディスプレイ220の表示の一例を説明する図である。
図20に示すように、縦方向に表示703、702、701、704、705の表示が設けられており、表示701を中央として、左右に表示706,707が設けられる。なお、当然のことながら、当該表示701,~,707は、ユーザによって自由に削除または変更することができ、さらに他の表示を追加することもできる。
なお、本実施の形態においては、表示701,~,707はシームレスに連続した画像であるが、切換えされるべき表示は、それぞれが独立した非連続の像であってもよい。
一方、天空情報の表示703および地図情報の表示705はパノラマ表示であってよく、この場合、左右方向の動きに伴ってそれら表示703,705をスクロールさせてよい。
続いて、指、掌、手、腕が操作領域410cに存在する場合と、ジェスチャ領域410gに存在する場合との違いをユーザが認識し易いように、所定のイベントを発生させる。以下、所定のイベントについて説明を行なう。図21は、所定のイベント発生の一例を示す模式図であり、図22は、図21のイベント発生の他の例を示す模式図であり、図23は、他のイベント発生の一例を示す模式図である。
これにより、ユーザは、ジェスチャ領域410gに手が存在することを容易に認識できる。
以上の指、掌、腕認識およびイベント発生を伴う眼鏡表示装置100の使用態様について説明する。
例えば、広告221には、店舗の、商品、サービス等の情報が表示されている。ユーザがその広告221をタッチした場合、当該店舗に関するさらに詳しい情報を追加表示させてもよい。たとえば、飲食店の場合には、当該飲食店の代表メニュ、ユーザからの評価、価格帯等を表示させてもよい。
なお、広告221は、店舗をカメラユニット303で撮影された像そのものであってもよいし、カメラユニット303による当該店舗の撮像データに基づいて店舗認識を自動で開始し、その結果、店舗認識アプリ画面に表示された認識結果情報であってもよい。
また、図25に示すように、半透過ディスプレイ220に一の企業(○○社)のロゴマークが表示されている際に、画面中のロゴマークにタッチ等行なうことで、競合又は非競合の他の企業(△△社)に関連する情報を表示させることができる。この場合、例えばパロディモードとして、当該他の企業のロゴを表示させてもよい。
また、ユーザがジェスチャ領域410g内で所定の手のポーズを作ることにより、予め設定された動作が実施される。図26から図33は、ジェスチャ認識の例を示す模式図である。
Claims (29)
- 対象物の外形を検知する外形検知部と、
前記外形検知部により検知された前記外形に基づいて、前記外形上の第1特徴点を抽出する第1抽出部と、
前記外形上または前記外形内に存在しかつ前記第1特徴点とは異なる第2特徴点を抽出する第2抽出部と、を含む、形状認識装置。 - 前記第1抽出部が、前記外形に基づいて複数の外形点を頂点とする多角形を生成し、前記多角形の頂点から1点を前記第1特徴点として抽出し、
前記第2抽出部が、前記第1特徴点の両側に位置する一対の頂点を結ぶ線分の方向を算出し、前記第1特徴点から前記多角形の外周に沿って順に、前記多角形を構成する辺の方向を算出し、前記線分の方向に対して最も平行に近い方向を有する前記多角形の辺が検知された場合に、前記検知された辺の位置に基づいた点を前記第2特徴点とする、請求項1に記載の形状認識装置。 - 前記第1抽出部が、前記外形に沿って所定の間隔で複数の外形点を検知し、前記外形点から1点を前記第1特徴点として抽出し、
前記第2抽出部が、前記第1特徴点の一方の側と他方の側とにそれぞれ存在する前記複数の外形点から選択された一対の外形点を結ぶ線分の長さを、前記第1特徴点により近い位置からより遠い位置への順で算出し、前記線分の長さの変化量が所定量を超えず且つ前記第1特徴点から最も遠い線分を検知し、前記検知された線分上の1点を前記第2特徴点として抽出する、請求項1に記載の形状認識装置。 - 前記対象物は、少なくとも人体の指、掌、手、または腕である、請求項1から3のいずれか1項に記載の形状認識装置。
- 前記対象物が延在する方向を検出する延在方向検出部をさらに含み、
前記延在方向検出部が、前記第1特徴点と前記第2特徴点とを結ぶ線分の方向が前記対象物の延在方向であると判定する、請求項1から4のいずれか1項に記載の形状認識装置。 - 前記外形検知部により検知された前記外形、または前記外形に基づいて生成される複数の外形点を頂点とする多角形を囲む四角枠を検出する枠検出部をさらに含み、
前記延在方向検出部が、前記四角枠を構成する長辺の方向を検出する、請求項1から5のいずれか1項に記載の形状認識装置。 - 前記対象物は手であり、
前記第1抽出部は、前記第1特徴点として指の先端部の点を抽出し、前記第2抽出部は、前記第2特徴点として指の根元部の点を抽出することにより指を認識する、請求項4から6のいずれか1項に記載の形状認識装置。 - 掌部分を認識する掌認識部をさらに含み、
前記掌認識部は、前記外形検知部によって検知された前記外形、または前記外形に基づいて生成される複数の外形点を頂点とする多角形の最大内接円に基づいて掌部分を認識する、請求項4から7のいずれか1項に記載の形状認識装置。 - 手の親指を認識する親指認識部をさらに含み、
前記親指認識部は、複数の指についての前記第1特徴点および前記第2特徴点の少なくともいずれかに基づいて前記親指を認識する、請求項4から8のいずれかに記載の形状認識装置。 - 前記第1抽出部および前記第2抽出部により前記認識された指と前記親指認識部によって認識された親指との情報に基づいて手の形状を識別する手形状識別部をさらに含む、請求項9に記載の形状認識装置。
- 前記外形検知部は、赤外線カメラである、請求項1から10のいずれか1項に記載の形状認識装置。
- 立体視像を表示可能な表示装置をさらに含み、
前記外形検知部が、前記対象物までの距離を測定する深度センサを含み、且つ、前記深度センサの深度検知領域、および前記表示装置により生成された立体視像の立体視領域と前記深度検知領域とが共有する共有領域の少なくともいずれかにおいて、前記対象物の外形を検知する、請求項1から11のいずれか1項に記載の形状認識装置。 - 請求項1から請求項12のいずれか1項に記載の形状認識装置を有するヘッドマウントディスプレイ装置。
- 対象物の外形を検知する外形検知処理と、
前記外形検知処理により検知された前記外形に基づいて、前記外形上の第1特徴点を抽出する第1抽出処理と、
前記外形上または前記外形内に存在しかつ前記第1特徴点とは異なる第2特徴点を抽出する第2抽出処理と、を含む、形状認識プログラム。 - 前記対象物が延在する方向を検出する延在方向検出処理をさらに含み、
前記延在方向検出処理が、前記第1特徴点と前記第2特徴点とを結ぶ線分の方向が前記対象物の延在方向であると判定する、請求項14に記載の形状認識プログラム。 - 前記外形検知処理により検知された前記外形、または前記外形に基づいて生成される複数の外形点を頂点とする多角形を囲む四角枠を検出する枠検出処理をさらに含み、
前記延在方向検出処理が、前記四角枠を構成する長辺の方向を検出する、請求項14または15に記載の形状認識プログラム。 - 前記対象物は手であり、
前記第1抽出処理は、前記第1特徴点として指の先端部の点を抽出する第1指認識処理を含み、前記第2抽出処理は、前記第2特徴点として指の根元部の点を抽出することにより指を認識する第2指認識処理を有する、請求項14から16のいずれか1項に記載の形状認識プログラム。 - 掌部分を認識する掌認識処理をさらに含み、
前記掌認識処理は、前記外形検知処理によって検知された前記外形、または前記外形に基づいて生成される複数の外形点を頂点とする多角形の最大内接円に基づいて掌部分を認識する、請求項17に記載の形状認識プログラム。 - 手の親指を認識する親指認識処理をさらに含み、
前記親指認識処理は、複数の指についての前記第1特徴点および前記第2特徴点の少なくともいずれかに基づいて前記親指を認識する、請求項17または18に記載の形状認識プログラム。 - 前記第1抽出処理および前記第2抽出処理により認識された指と前記親指認識処理によって認識された親指との情報に基づいて手の形状を識別する手形状識別処理をさらに含む、請求項19に記載の形状認識プログラム。
- 立体視像を表示可能な表示処理をさらに含み、
前記外形検知処理が、前記対象物までの距離を測定する深度センサ処理を含み、且つ、
前記深度センサ処理により検知される深度検知領域、および前記表示処理により生成された立体視像の立体視領域と前記深度検知領域とが共有する共有領域の少なくともいずれかにおいて、前記対象物の外形を検知する、請求項14から20のいずれか1項に記載の形状認識プログラム。 - 対象物の外形を検知する外形検知工程と、
前記外形検知工程により検知された前記外形に基づいて、前記外形上の第1特徴点を抽出する第1抽出工程と、
前記外形上または前記外形内に存在しかつ前記第1特徴点とは異なる第2特徴点を抽出する第2抽出工程と、を含む、形状認識方法。 - 前記対象物が延在する方向を検出する延在方向検出工程をさらに含み、
前記延在方向検出工程が、前記第1特徴点と前記第2特徴点とを結ぶ線分の方向が前記対象物の延在方向であると判定する、請求項22に記載の形状認識方法。 - 前記外形検知工程により検知された前記外形、または前記外形に基づいて生成される複数の外形点を頂点とする多角形を囲む四角枠を検出する枠検出工程をさらに含み、
前記延在方向検出工程が、前記四角枠を構成する長辺の方向を検出する、請求項22または23に記載の形状認識方法。 - 前記対象物は手であり、
前記第1抽出工程は、前記第1特徴点として指の先端部の点を抽出する第1指認識工程を含み、前記第2抽出工程は、前記第2特徴点として指の根元部の点を抽出することにより指を認識する第2指認識工程を有する、請求項22から24のいずれか1項に記載の形状認識方法。 - 掌部分を認識する掌認識工程をさらに含み、
前記掌認識工程は、前記外形検知工程によって検知された前記外形、または前記外形に基づいて生成される複数の外形点を頂点とする多角形の最大内接円に基づいて掌部分を認識する、請求項25に記載の形状認識方法。 - 手の親指を認識する親指認識工程をさらに含み、
前記親指認識工程は、複数の指についての前記第1特徴点および前記第2特徴点の少なくともいずれかに基づいて前記親指を認識する、請求項25または26に記載の形状認識方法。 - 前記第1抽出工程および前記第2抽出工程により前記認識された指と前記親指認識工程によって認識された親指との情報に基づいて手の形状を識別する手形状識別工程をさらに含む、請求項27に記載の形状認識方法。
- 立体視像を表示可能な表示工程をさらに含み、
前記外形検知工程が、前記対象物までの距離を測定する深度センサ工程を含み、且つ、
前記深度センサ工程により検知される深度検知領域、および前記表示工程により生成された立体視像の立体視領域と前記深度検知領域とが共有する共有領域の少なくともいずれかにおいて、前記対象物の外形を検知する、請求項22から28のいずれか1項に記載の形状認識方法。
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JP2017102603A (ja) * | 2015-11-30 | 2017-06-08 | 富士通株式会社 | 画像処理装置、画像処理方法および画像処理プログラム |
JP2017099686A (ja) * | 2015-12-02 | 2017-06-08 | 株式会社ブリリアントサービス | ゲーム用ヘッドマウントディスプレイ、ゲーム用ヘッドマウントディスプレイのプログラム、およびゲーム用ヘッドマウントディスプレイの制御方法 |
KR20170117342A (ko) * | 2016-04-13 | 2017-10-23 | 폭스바겐 악티엔 게젤샤프트 | 사용자 인터페이스, 이동 수단 및 사용자의 손을 인식하기 위한 방법 |
KR101892390B1 (ko) * | 2016-04-13 | 2018-08-27 | 폭스바겐 악티엔 게젤샤프트 | 사용자 인터페이스, 이동 수단 및 사용자의 손을 인식하기 위한 방법 |
US10261593B2 (en) | 2016-04-13 | 2019-04-16 | Volkswagen Aktiengesellschaft | User interface, means of movement, and methods for recognizing a user's hand |
CN109104693A (zh) * | 2018-07-13 | 2018-12-28 | 安徽捷峰电子科技有限公司 | 一种老人监护用电子围栏 |
CN113762093A (zh) * | 2021-08-18 | 2021-12-07 | 北京格灵深瞳信息技术股份有限公司 | 跑道冲刺计时方法、装置、电子设备和存储介质 |
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US9857589B2 (en) | 2018-01-02 |
US20160004320A1 (en) | 2016-01-07 |
JPWO2014128787A1 (ja) | 2017-02-02 |
JP6195894B2 (ja) | 2017-09-13 |
JPWO2014128788A1 (ja) | 2017-02-02 |
JP6393367B2 (ja) | 2018-09-19 |
US9651782B2 (en) | 2017-05-16 |
WO2014128789A1 (ja) | 2014-08-28 |
JP6074494B2 (ja) | 2017-02-01 |
US20150378158A1 (en) | 2015-12-31 |
US20150370321A1 (en) | 2015-12-24 |
US10295826B2 (en) | 2019-05-21 |
US10095030B2 (en) | 2018-10-09 |
JP6095763B2 (ja) | 2017-03-15 |
JPWO2014128789A1 (ja) | 2017-02-02 |
US20160004908A1 (en) | 2016-01-07 |
US9778464B2 (en) | 2017-10-03 |
WO2014128773A1 (ja) | 2014-08-28 |
JPWO2014128749A1 (ja) | 2017-02-02 |
JPWO2014128773A1 (ja) | 2017-02-02 |
JP2017199379A (ja) | 2017-11-02 |
JP6195893B2 (ja) | 2017-09-13 |
WO2014128787A1 (ja) | 2014-08-28 |
WO2014128788A1 (ja) | 2014-08-28 |
US20160004907A1 (en) | 2016-01-07 |
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