WO1997031484A1 - Systeme de reconnaissance optique large champ - Google Patents
Systeme de reconnaissance optique large champ Download PDFInfo
- Publication number
- WO1997031484A1 WO1997031484A1 PCT/JP1997/000480 JP9700480W WO9731484A1 WO 1997031484 A1 WO1997031484 A1 WO 1997031484A1 JP 9700480 W JP9700480 W JP 9700480W WO 9731484 A1 WO9731484 A1 WO 9731484A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- image
- wide
- image processing
- visual recognition
- processing device
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Definitions
- the present invention is an apparatus that obtains a wide range of images without blind spots without moving the viewpoint of shooting.
- the present invention not only displays an image shot by a wide-angle lens, but also selects an image.
- An image hereinafter, referred to as an “approximate original image” that approximates the original shape of the object (hereinafter, referred to as an “original image”) by correcting the image distortion of the selected area is also displayed. It concerns the device. Background art
- the present invention solves these disadvantages of the conventional visual recognition device by introducing a photographing device, image processing device, and display device based on a new technical concept, and tolerates image distortion during the process of photographing an object without blind spots.
- An object of the present invention is to perform an image processing for correcting an image distortion of a region of interest in the image so that an approximate original image of the object can be easily recognized. Disclosure of the invention
- image distortion is tolerated, and image processing is performed to correct the image distortion of the region of interest in the image, so that an approximate original image of the object can be easily viewed. It can be observed over a wide range and a specific part can be visually recognized accurately.
- the display device 3 may be a projection device that projects an image onto a substantially spherical screen via a wide-angle lens.
- the installation position of the projection device is shifted from the central axis of the substantially spherical screen.
- the image processing device 2 performs image correction processing so that the image is approximated to the original image when viewed from a position substantially on the center axis of the image screen projected from the installation position. Good.
- FIG. 10 is a plan view showing the principle of the present invention.
- FIG. 11 is a plan view showing the principle of the present invention.
- the installation position of the imaging device 1 may be appropriately selected depending on the application.
- an embodiment in which the imaging device 1 is installed on the ceiling of a room for monitoring and both the objects P 1 and P 2 can be visually recognized is shown in FIG. Is shown in In this example, four corners of the room, for example, points f1 to f4 in the figure may be used as the reference coordinate points.
- FIG. 13 shows an embodiment in which three or more photographing devices 1 are installed inward with respect to a common object p to photograph, but in this case, the object is There is an advantage that 3D position information over the entire surface of the object can be obtained, and a 3D image can be obtained more precisely.
- FIG. 14 shows an embodiment of the projection system, and shows a manner in which an image taken in a wide field of view is projected on a substantially spherical screen having a wide field of view by the reverse process.
- the projection device (display device) 3 is positioned at the center of the screen so that the observer can observe the projected image from a position on the substantially central axis of the screen, which is a visually optimal position.
- the one installed at the position shifted from the axis is shown.
- the images gl ′ to g2, to g3 ′ projected from the position shifted from the center axis of the screen are the most original images g1 to g3 when observed from a position substantially on the center axis of the screen.
- the image processing device 2 is configured to perform image processing for correcting a shift between a projection point and an observation viewpoint so that the image looks similar to 2 to g3.
- the wide-angle lens of the photographing device 1 has a surface angle of 18
- the imaging device 1 may be provided with an imaging member such as a solid-state imaging device that converts an image into an electric signal immediately after the lens at the tip of the imaging device 1.
- the imaging member 1 may be provided via an image transmission unit such as a physical fiber. It may be connected to.
- a device for illuminating the object may be provided.
- the arithmetic processing in the surface image processing device 2 may be performed by hardware including fixed electronic circuits in the device 2 or by software incorporated in the device 2.
- the image processing apparatus 2 is provided with a function as a so-called system controller.
- the image storage devices 4 and 5 may be of a digital type or an analog type, and the storage medium is a semiconductor, a magnetic tape, Various known techniques such as a magnetic disk and an optical disk may be used. Of course, it may have a function of image data compression / decompression.
- the communication device may be interposed between any of the photographing device 1, the image processing device 2, the display device 3, the image storage device 4; 5, and the image forming device 6 constituting the present invention.
- the image can be a color image or a monochrome image. Furthermore, it can be used in combination with audio processing. In this case, sound can be collected with an omnidirectional microphone according to the wide field of view, or a stereo collection can be used to associate the image with the position of the sound source. A method such as sounding is also conceivable.
- each device and member constituting the present invention can be variously selected based on well-known technology, and various design changes can be made within the scope of the present invention. Is not limited to the above embodiments.
- the present invention is based on a new technical concept.
- an imaging device equipped with a wide-angle lens, an image processing device, and a display device By introducing an imaging device equipped with a wide-angle lens, an image processing device, and a display device, the disadvantages associated with the blind spots of the conventional visual recognition device are eliminated, Image distortion, select an area of interest in the image, and perform image processing to correct the image distortion in that area, or obtain a stereoscopic image from simultaneous images using multiple imaging devices By performing image processing or performing image processing to reconstruct an image with a wider image area, an approximate original image of the target object can be easily visually recognized.
- a monitoring device, a tracking device, a search device, Graphic recognition device, guidance device, endoscope device, simulation Such a visual recognition device that can be used in various fields such as a visualization device that can observe a wide area and accurately recognize a specific portion can be very successful.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Image Processing (AREA)
- Closed-Circuit Television Systems (AREA)
- Studio Devices (AREA)
Abstract
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9818050A GB2325815A (en) | 1996-02-23 | 1997-02-21 | Wide visual-field recognizing system |
AU17341/97A AU1734197A (en) | 1996-02-23 | 1997-02-21 | Wide visual-field recognizing system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3616496 | 1996-02-23 | ||
JP8/36164 | 1996-02-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997031484A1 true WO1997031484A1 (fr) | 1997-08-28 |
Family
ID=12462134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/000480 WO1997031484A1 (fr) | 1996-02-23 | 1997-02-21 | Systeme de reconnaissance optique large champ |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU1734197A (fr) |
GB (1) | GB2325815A (fr) |
WO (1) | WO1997031484A1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004242049A (ja) * | 2003-02-06 | 2004-08-26 | Hitachi Ltd | マルチカメラ映像合成表示装置 |
JP2005277825A (ja) * | 2004-03-25 | 2005-10-06 | Hitachi Ltd | マルチカメラ映像表示装置 |
JP2006020141A (ja) * | 2004-07-02 | 2006-01-19 | Denso Corp | 表示制御装置 |
JP2009188980A (ja) * | 2007-11-09 | 2009-08-20 | Honeywell Internatl Inc | 360度の視野をもつステレオカメラ |
JP2014109480A (ja) * | 2012-11-30 | 2014-06-12 | Mitsutoyo Corp | Xyz直交測定装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU1901701A (en) * | 1999-11-15 | 2001-05-30 | Equal Reverse Thoughts Limited | Method of improved image depth perception |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0380239A (ja) * | 1989-08-24 | 1991-04-05 | Seiko Epson Corp | 投写型液晶表示装置 |
JPH05346950A (ja) * | 1991-12-19 | 1993-12-27 | Eastman Kodak Co | 三次元シーンを感知するための方法及び装置 |
JPH06501585A (ja) * | 1991-05-13 | 1994-02-17 | インタラクティブ ピクチャーズ コーポレイション | 全視野静止カメラオリエンテーションシステム |
-
1997
- 1997-02-21 AU AU17341/97A patent/AU1734197A/en not_active Abandoned
- 1997-02-21 GB GB9818050A patent/GB2325815A/en not_active Withdrawn
- 1997-02-21 WO PCT/JP1997/000480 patent/WO1997031484A1/fr active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0380239A (ja) * | 1989-08-24 | 1991-04-05 | Seiko Epson Corp | 投写型液晶表示装置 |
JPH06501585A (ja) * | 1991-05-13 | 1994-02-17 | インタラクティブ ピクチャーズ コーポレイション | 全視野静止カメラオリエンテーションシステム |
JPH05346950A (ja) * | 1991-12-19 | 1993-12-27 | Eastman Kodak Co | 三次元シーンを感知するための方法及び装置 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004242049A (ja) * | 2003-02-06 | 2004-08-26 | Hitachi Ltd | マルチカメラ映像合成表示装置 |
JP2005277825A (ja) * | 2004-03-25 | 2005-10-06 | Hitachi Ltd | マルチカメラ映像表示装置 |
JP2006020141A (ja) * | 2004-07-02 | 2006-01-19 | Denso Corp | 表示制御装置 |
JP2009188980A (ja) * | 2007-11-09 | 2009-08-20 | Honeywell Internatl Inc | 360度の視野をもつステレオカメラ |
JP2014109480A (ja) * | 2012-11-30 | 2014-06-12 | Mitsutoyo Corp | Xyz直交測定装置 |
Also Published As
Publication number | Publication date |
---|---|
GB2325815A (en) | 1998-12-02 |
GB9818050D0 (en) | 1998-10-14 |
AU1734197A (en) | 1997-09-10 |
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