JP4946914B2 - Camera system - Google Patents

Description

  The present invention relates to a camera system in which a camera housing and a display housing are configured as separate housings.

  In recent years, cameras using a solid-state image sensor have become widespread. When shooting with such a camera, the shooting composition and subject are often confirmed by looking at a display monitor arranged on the back of the camera. Alternatively, in the case of a camera that cannot output an image to be captured to a display monitor, it is necessary to look through the viewfinder like a conventional film camera. As a camera system that captures moving images, a camera system that displays captured images on an external monitor that is a separate housing from the camera that captures moving images is known.

On the other hand, a method has been considered in which an AF (autofocus) area is displayed on a viewfinder so that an AF target area can be easily understood (see, for example, Patent Document 1).
JP 2006-145872 A

  However, conventional cameras shoot while checking the shooting composition and subject by looking through the display monitor and viewfinder on the back of the camera, so it is necessary to hold the camera at the photographer's face position, and shooting is done. Become an atmosphere. For this reason, when the subject is a human, the person to be photographed often stands in tension, and there is a problem that it is difficult to photograph an image with a natural atmosphere.

  An object of the present invention is to provide a camera system that can capture an image of a natural atmosphere without being obtrusive to a photographer.

  A camera system according to the present invention includes a camera housing having an imaging unit that captures an image via a lens optical system and a display housing having a display unit that displays an image captured by the camera housing. In the camera system configured by a body, the display casing includes a first direction detection unit that detects a position of the display casing in three axial directions, and the camera casing includes the camera casing. Using a second direction detection unit that detects a position in three axial directions, second position information output by the second direction detection unit, and first position information output by the first direction detection unit A direction calculating unit that calculates a relative position between the camera case and the display case, and a photographing operation performed by the imaging unit according to the relative position calculated by the direction calculating unit and the lens information of the lens optical system. Set the shooting range frame indicating the shooting area of the image to be displayed on the display. Characterized in that it comprises a display control unit.

  Preferably, the display casing is formed in a casing shape that is integrated with a photographer's head movement and is mounted at a position where the photographer can visually recognize the display casing.

  Preferably, the display housing is a glasses-type display housing.

  Preferably, a release button for instructing photographing to the imaging unit of the camera housing is provided on the display housing.

  Preferably, the camera housing further includes an AF control unit capable of setting an AF (autofocus) area, and the display control unit includes an imaging range frame indicating the imaging area and an AF indicating the AF area. A range frame is set in the display unit.

  The camera system according to the present invention includes a shooting range frame indicating the shooting range of the image pickup unit and AF even when the camera case having the image pickup unit and the eyeglass-type display case having the display unit are placed at positions separated from each other. Since only the information such as the AF target frame indicating the area is displayed on the display unit of the glasses-type display housing, it is possible to capture an image of a natural atmosphere without being obtrusive to the photographer.

  Hereinafter, embodiments of the camera system according to the present invention will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram of a camera system 100 according to the first embodiment. The camera system 100 includes a camera body 101 and a display device 102.

  The camera body 101 includes a lens optical system 103, an imaging unit 104, an image processing unit 105, a memory 106, a control unit 107, a memory IF (interface) 108, an operation panel 109, an AF sensor 110, and an AE. The sensor 111, the lens control unit 112, the light emitting unit 113, the display IF (interface) 114, the triaxial sensor 115, and the distance measuring unit 116 are configured. It should be noted that the camera body 101 attaches the memory card 118 to the memory IF 108 and saves the captured image. The camera body 101 is connected from the display IF 114 to the display device 102 via the cable 117. In this embodiment, the camera body 101 and the display device 102 are connected by the cable 117, but may be wirelessly connected using radio or infrared.

  The display device 102 is a glasses-type display device called a wearable display, and includes a liquid crystal display unit 119, a distance measuring unit 120, a triaxial sensor 121, and a release button 122a. The cable 117 is wired to the liquid crystal display unit 119, the distance measuring unit 120, the triaxial sensor 121, and the release button 122a inside the frame of the display device 102.

  The camera system 100 is used by a photographer operating various operation buttons on the operation panel 109. The operation information on the operation panel 109 is input to the control unit 107, and the control unit 107 controls the operation of each unit of the camera system 100 according to the operation information on the operation panel 109. For example, when performing focus control, the AF unit 151 of the control unit 107 processes the focus information output from the AF sensor 110 to obtain a focal position, and performs lens control so as to move the focus lens of the lens optical system 103 to the focal position. Command to the unit 112. Alternatively, when performing exposure control, the AE unit 152 of the control unit 107 processes the photometric information output from the AE sensor 111 to obtain an appropriate exposure, and instructs the lens control unit 112 to control the aperture value of the lens optical system 103. Commands, and controls the shutter speed of the imaging unit 104, the light emission amount of the light emitting unit 113, and the like. Note that the subject light incident from the lens optical system 103 forms an image on the light receiving surface of the imaging unit 104 and also enters the AF sensor 110 and the AE sensor 111.

  In FIG. 1, the imaging unit 104 converts subject light imaged on the light receiving surface into image data in accordance with a command from the control unit 107 and outputs the image data to the image processing unit 105. The image processing unit 105 performs white balance processing, color interpolation processing, or image compression processing, and outputs the processed image data to the control unit 107. The control unit 107 inputs the image data processed by the image processing unit 105 and stores it as a captured image in the memory card 118 attached to the memory 106 or the memory IF 108.

  Further, the display control unit 154 of the control unit 107 displays necessary information on the liquid crystal display unit 119 of the display device 102 connected from the display IF 114 via the cable 117. In the present embodiment, information displayed on the liquid crystal display unit 119 is not graphic images themselves but geometric graphic information, characters / symbols, and the like.

  The triaxial sensor 115 detects the amount of movement of the housing of the camera body 101 in the triaxial direction. The movement amount detected by the three-axis sensor 115 is input to the direction calculation unit 153 of the control unit 107. For example, the triaxial sensor 115 includes three acceleration sensors in the X axis direction, the Y axis direction, and the Z axis direction, and detects the movement amount in the X axis direction, the movement amount in the Y axis direction, and the movement amount in the Z axis direction. And output to the direction calculation unit 153 of the control unit 107. The direction calculation unit 153 can grasp the position in the X-axis direction, the position in the Y-axis direction, and the position in the Z-axis direction of the housing of the camera body 101 from the respective movement amounts in the three-axis directions with respect to the reference position.

  The distance measuring unit 116 measures the relative positional relationship and the distance between the camera body 101 and the display device 102 through communication with the distance measuring unit 120 of the display device 102. A method for measuring the relative relationship between the distance between the camera body 101 and the display device 102 will be described in detail later.

  Next, the display device 102 will be described. The glasses-type display device 102 has transparent glasses attached to the left and right eyes, and the photographer can see the actual scenery through the transparent glasses like ordinary glasses. Furthermore, in this embodiment, a liquid crystal display unit 119 for displaying information is mounted on the transparent glass portion of the left eye. The liquid crystal display unit 119 keeps a portion other than the information to be displayed in a transparent state, so that the photographer's view is hardly obstructed and the photographer can see the actual landscape. In the present embodiment, the liquid crystal display unit 119 is attached to the left eye portion, but may be attached to the right eye portion or both the left and right sides.

  Here, a usage pattern of the camera system 100 according to the first embodiment will be described. As shown in FIG. 2, the camera system 100 is used by a photographer 201 wearing a glasses-type display device 102 on a face like glasses. In FIG. 2, the same reference numerals as those in FIG. Further, the release button 122b, the power button 123, and the zoom button 124 arranged on the housing of the camera body 101 are included in the operation panel 109 of FIG. The release button 122b of the camera body 101 functions in parallel with the release button 122a of the display device 102, and gives a shooting instruction to the camera body 101 by operating either the release button 122a or the release button 122b. In this embodiment, only the release button is provided on both the camera body 101 side and the display device 102 side. However, another zoom button that functions in parallel with the zoom button 124 may be provided on the display device 102 side. Absent.

  1 and 2, the triaxial sensor 121 of the display device 102 detects the amount of movement of the housing of the display device 102 in the triaxial direction. The movement amount detected by the triaxial sensor 121 is input to the display IF 114 of the camera body 101 via the cable 117 and further input to the direction calculation unit 153 of the control unit 107. Similar to the triaxial sensor 115 of the camera body 101, the triaxial sensor 121 includes, for example, three acceleration sensors in the X axis direction, the Y axis direction, and the Z axis direction, and the amount of movement in the X axis direction and the Y axis direction. And the amount of movement in the Z-axis direction are detected. The direction calculation unit 153 of the control unit 107 can grasp the position in the X-axis direction, the position in the Y-axis direction, and the position in the Z-axis direction of the housing of the display device 102 from the amount of movement in the three-axis direction with respect to the reference position. it can.

  As shown in FIG. 2, the coordinates in the X-axis direction, the Y-axis direction, and the Z-axis direction are the same with the position where the camera body 101 is located or the position where the display device 102 is located as the reference position. Use a coordinate system. For example, with the position where the housing of the camera body 101 is located as the reference position, the X-axis direction is the subject direction (the optical axis direction of the lens optical system 103), the Y-axis direction is the horizontal direction, and the Z-axis direction is the vertical direction. Of course, the position where the housing of the display device 102 is located may be used as the reference position, and any coordinate system that can relatively grasp the positional relationship between the camera body 101 and the display device 102 may be used. Note that the relative positional relationship includes not only the distance between the camera body 101 and the display device 102 but also the relative inclination of the housing on the three-dimensional coordinates.

  Here, an example of a method for obtaining the initial position of the relative positional relationship between the camera body 101 and the display device 102 at the start of shooting will be described. For example, by mounting a plurality of infrared distance measuring devices on the camera body 101 and the display device 102 and measuring the distance of a plurality of points, the relative positional relationship between the position of the camera body 101 and the position of the display device 102 can be determined. Can be sought. For example, as shown in FIG. 3, three infrared light emitting units 601a, 601b, and 601c are arranged at a known predetermined distance on the casing surface of the display device 102, and three infrared light receiving units 602a are arranged on the casing surface of the camera body 101. , 602b and 602c are arranged at a known predetermined distance. The infrared light emitting unit 601a and the infrared light receiving unit 602a form a pair, and measure the distance between two points from the arrival time of the signal, for example. Similarly, the pair of the infrared light emitting unit 601b and the infrared light receiving unit 602b, and the pair of the infrared light emitting unit 601c and the infrared light receiving unit 602c measure the distance between the two points. Alternatively, general GPS positioning is performed such that the signals from the three infrared light emitting units 601a, 601b, and 601c on the display device 102 side are received by the three infrared light receiving units 602a, 602b, and 602c on the camera body 101 side. Similarly to the method, the positions and directions of the three infrared light receiving units 602a, 602b, and 602c on the camera body 101 side may be obtained.

  In this way, the direction calculation unit 153 of the control unit 107 of the camera body 101 can obtain the initial value of the relative positional relationship between the camera body 101 and the display device 102. Once the relative initial position between the camera main body 101 and the display device 102 is obtained, the camera main body 101 and the display based on the initial position are determined in accordance with the amount of movement obtained from the three-axis sensor 115 and the three-axis sensor 121. The coordinates of the device 102 may be updated.

  It should be noted that an initial setting button is provided on the camera body 101 or the display device 102 without mounting the infrared distance measuring device as described above, and when the photographer starts shooting, the image is actually transmitted through the liquid crystal display unit 119 of the display device 102. The camera main body 101 is arranged so that the scenery seen in FIG. 3 matches the shooting range frame indicating the area used for shooting in the camera main body 101, and the initial setting button is pressed in this state to If the coordinates and the initial coordinates of the display device 102 are reset, a relative initial position between the camera body 101 and the display device 102 can be set. Thereafter, as described above, the coordinates of the camera body 101 and the display device 102 based on the initial position may be updated in accordance with the movement amount obtained from the triaxial sensor 115 and the triaxial sensor 121.

  As described above, since the camera system 100 according to the present embodiment always grasps the relative positional relationship between the camera body 101 and the display device 102, the scene actually viewed through the liquid crystal display unit 119 of the display device 102 can be obtained. It is possible to correct a deviation between the shooting range frame displayed in an overlapping manner and the shooting range to be shot by the camera body 101. As a result, even if the camera body 101 and the display device 102 are separated from each other, the photographer captures the portion of the scene actually viewed through the display device 102 by the lens optical system 103 of the camera body 101 as a shooting range. Can be easily known from the photographing range frame 401 displayed on the liquid crystal display unit 119.

  Next, a method for displaying the photographing range frame 401 displayed on the liquid crystal display unit 119 will be described in detail. FIG. 4 is an explanatory diagram depicting a situation where a photographer 201 wearing the display device 102 is shooting a certain scene using the camera body 101 connected to the display device 102 via a cable 117. 1 and 2 denote the same components.

  In FIG. 4, the scenery that the photographer 201 actually sees through the display device 102 is the range indicated by the dotted line 301a. On the other hand, the shooting range to be shot by the camera body 101 is a range indicated by a dotted line 302a. FIG. 5A shows a screen displayed on the liquid crystal display unit 119 of the display device 102 in this state. In FIG. 5A, the scenery that the photographer 201 actually sees through the display device 102 is the range indicated by the dotted line 301a, and the shooting range of the camera body 101 is the range indicated by the dotted line 302a. The display control unit 154 of the control unit 107 displays the shooting range frame 401a in the shooting range indicated by the dotted line 302a. In FIG. 5A, for the sake of easy understanding, the dotted line 302a and the shooting range frame 401a are drawn slightly shifted from each other, but they are actually at the same position.

  In this way, the photographer 201 displays the photographing range frame 401a superimposed on the scenery actually viewed through the display device 102, so which part of the scenery being viewed is to be photographed by the camera body 101. Can be easily grasped.

  Next, a case will be described in which the position of the camera body 101 is kept as it is and the photographer 201 is shaken to the left. FIG. 6 is a diagram corresponding to FIG. 4 described above, and is an explanatory diagram depicting a situation when the photographer 201 wearing the display device 102 shakes his head to the left. The same reference numerals as those in FIG. 4 denote the same elements.

  When the photographer 201 swings his head to the left, the scenery that the photographer 201 actually sees through the display device 102 is within the range indicated by the dotted line 301b in FIG. 6 from the range indicated by the dotted line 301a in FIG. Move to. On the other hand, the shooting range to be shot by the camera body 101 is the same as that shown in FIG. 4 and is the range indicated by the dotted line 302a.

  In this state, if the shooting range frame 401a displayed on the liquid crystal display unit 119 of the display device 102 remains in the state shown in FIG. 5A, the photographer 201 shakes his head to the left to display the display device. Since 102 also moves to the left, the screen displayed on the liquid crystal display unit 119 is as shown in FIG. In FIG. 5B, the scenery that the photographer 201 actually sees through the display device 102 is the range indicated by the dotted line 301b, and the shooting range of the camera body 101 is the part indicated by the dotted line 302a. Since the photographing range frame 401a displayed on 119 moves to the left by the amount that the photographer 201 swings his head to the left, the photographing range frame 401a is displayed at a position shifted from the dotted line 302a of the photographing range of the camera body 101.

  Therefore, the camera system 100 according to the present embodiment controls to move the position of the shooting range frame displayed on the liquid crystal display unit 119 by the amount that the photographer 201 swings his head to the left. Specifically, the triaxial sensor 121 of the display device 102 detects that the photographer 201 has swung his head to the left, and notifies the direction calculation unit 153 of the control unit 107 via the cable 117 and the display IF 114. As described above, the direction calculation unit 153 obtains the relative positional relationship between the camera body 101 and the display device 102, and further calculates the relative position movement amount on the screen of the liquid crystal display unit 119. The amount is converted into the amount of movement of the frame 401a, and the display control unit 154 is instructed to move the display position of the shooting range frame 401a. In calculating the movement amount, it is necessary to perform parallax correction based on a shift between the position of the camera body 101 and the position of the display device 102.

  Here, the parallax correction will be described with reference to FIG. FIG. 7 is an explanatory diagram illustrating a situation where the photographer 201 wearing the display device 102 and the camera body 101 are in a position shifted in parallel by a distance d for easy understanding. In FIG. 7, a solid line 501a indicates a distant subject separated by a distance L1, and a solid line 501b indicates a nearby subject distant by a distance L2. If the front direction of the face of the photographer 201 and the optical axis direction of the lens optical system 103 of the camera body 101 are parallel, the subject at a position shifted by the distance d is seen, so the liquid crystal of the display device 102 In order to match the center position of the object viewed on the screen of the display unit 119, a parallax is set by an angle θ1 for a subject far from the solid line 501a and by an angle θ2 for a subject near the solid line 501b. It is necessary to correct. The parallax correction method is a generally known method. If the distance d between the photographer 201 and the camera body 101 and the distance L1 or L2 to the subject are known, the angle θ1 or θ2 can be obtained.

  In the camera system 100 according to the present embodiment, the distance measurement unit 116 on the camera body 101 side and the distance measurement unit 120 on the display device 102 side communicate with each other by infrared rays or the like, and the distance between the camera body 101 and the display device 102 is determined. Since the relative position can be known, the distance d can be obtained. Further, the distances L1 and L2 to the subject can be known from the lens information input from the lens optical system 103 by the lens control unit 112. In this way, parallax correction can be performed.

  The shooting range of the camera body 101 can be calculated from the distance to the subject, the focal length of the lens optical system 103, and the size of the light receiving surface of the imaging unit 104. When a zoom lens is used as the lens optical system 103, the display control unit 154 inputs zoom position information of the attached zoom lens from the lens optical system 103 via the lens control unit 112, and the focus of the zoom lens. The shooting range frame is enlarged / reduced according to the distance and displayed on the liquid crystal display unit 119 of the display device 102.

  In this way, even when the camera body 101 and the display device 102 are separated from each other, as shown in FIG. 5C, the shooting range frame 401b displayed on the liquid crystal display unit 119 of the display device 102 is In the scenery that the photographer 201 actually sees through the display device 102, the photographer 201 is displayed at a position that matches the shooting range of the camera body 101 indicated by the dotted line 302a. In FIG. 5 (c), as in FIG. 5 (a), the dotted line 302a and the shooting range frame 401b are drawn slightly shifted for easy understanding, but both are actually at the same position. .

  In this way, even if the position of the scenery that the photographer 201 actually moves by moving his / her head changes, the shooting range frame 401b that is always being shot by the camera body 101 is actually displayed on the liquid crystal display unit 119 of the display device 102. Therefore, it is possible to easily grasp which part of the scenery being viewed is being photographed.

  In this embodiment, only the case where the photographer 201 shakes his / her head to the left has been described. However, the case where the photographer 201 shakes his / her head to the right or up / down, or the position where the photographer 201 himself stands is moved. Even when sitting or sitting, the three-axis sensor 121 of the display device 102 detects a change (movement amount) in the X-axis direction, the Y-axis direction, and the Z-axis direction, so the direction calculation unit 153 of the control unit 107 The display control unit 154 operates in the same manner as when the head is swung to the left, and can display the photographing range frame at an appropriate position.

  Next, display processing for displaying a shooting range frame on the liquid crystal display unit 119 on the display device 102 when shooting with the camera system 100 of FIG. 1 will be described in detail with reference to the flowchart of FIG. Note that the flowchart of FIG. 8 operates according to a program stored in the control unit 107 in advance.

  (Step S101) The control unit 107 starts display processing.

  (Step S102) The control unit 107 performs an initial position setting process. That is, as described with reference to FIG. 3, the relative positional relationship between the camera body 101 and the display device 102 is obtained using the distance measuring unit 116 and the distance measuring unit 120. For example, in the same XYZ coordinate system, the camera body 101 is at the position of coordinates (x1, y1, z1), and the display device 102 is at the position of coordinates (x2, y2, z2). Is the initial position. In this state, for example, as shown in FIG. 5A, the shooting range frame 401 a is displayed on the liquid crystal display unit 119 of the display device 102.

  (Step S <b> 103) The direction calculation unit 153 of the control unit 107 detects a change in the position of the camera body 101 by the triaxial sensor 115.

  (Step S <b> 104) The direction calculation unit 153 of the control unit 107 detects a change in the position of the display device 102 using the triaxial sensor 121.

  (Step S105) The direction calculation unit 153 of the control unit 107 determines whether or not the relative positional relationship between the camera body 101 and the display device 102 has changed from the change in position detected in steps S103 and S104. . If the relative positional relationship between the camera body 101 and the display device 102 has changed, the process proceeds to step S106, and if not changed, the process returns to step S103.

  (Step S106) When the relative positional relationship between the camera body 101 and the display device 102 changes, the direction calculation unit 153 of the control unit 107 updates the relative positional relationship between the camera body 101 and the display device 102. To do. For example, the coordinates (x1, y1, z1) of the initial position of the camera body 101 obtained in step S102 are updated to new coordinates (x3, y3, z3), and the coordinates (x2, y2, z2) of the initial position of the display device 102 are updated. ) Is updated to the new coordinates (x4, y4, z4). As described above, the display control unit 154 of the control unit 107 is displayed on the screen of the liquid crystal display unit 119 in the shooting range frame according to the updated relative positional relationship between the camera body 101 and the display device 102. Is obtained and displayed on the liquid crystal display unit 119 of the display device 102. After the process, the process returns to step S103 and the same process is repeated.

  Note that the shooting process is performed separately from the flowchart of FIG. 8. When the release button 122 b of the camera body 101 is pressed or when the release button 122 a of the display device 102 is pressed, the subject image at that time is displayed. The image is captured by the image capturing unit 104 of the camera main body 101, subjected to necessary image processing by the image processing unit 105, and then stored in the memory card 118 via the memory 106 and the memory IF 108.

  As described above, in the camera system 100 according to the present embodiment, the camera body 101 having the imaging unit 104 and the glasses-type display device 102 are configured as separate housings, and the imaging unit 104 is photographed through the lens optical system 103. Since the photographing range frame indicating the photographing range is displayed on the liquid crystal display unit 119 of the glasses-type display device 102, a complicated device is not required as compared with the case where the photographed image itself is displayed on the liquid crystal display unit 119, and the liquid crystal display Since only the shooting range frame is displayed on the part 119, an image of a natural atmosphere can be taken without causing any trouble for the photographer.

  Furthermore, since the release button 122a is also provided on the display device 102 side, an image can be taken without missing a photo opportunity even when the camera body 101 is out of the reach of the photographer.

(Second Embodiment)
Next, a second embodiment of the camera system according to the present invention will be described. The configuration of the camera system 100 according to the second embodiment is the same as that of the camera system 100 according to the first embodiment shown in FIG. The difference from the first embodiment is that the AF target area of the AF unit 151 of the control unit 107 is displayed on the liquid crystal display unit 119 of the display device 102. The camera body 101 can freely set an area where AF control is desired in the shooting screen, and the set AF target is automatically tracked in the shooting screen of the imaging unit 104 of the camera body 101. The function to do is provided. FIG. 9 is a diagram corresponding to FIG. 5C of the first embodiment, and a landscape range 601 that the photographer actually sees through the liquid crystal display unit 119 of the display device 102 and the first embodiment. A state in which the described photographing range frame 602 is displayed on the liquid crystal display unit 119 of the display device 102 is illustrated. Further, in the present embodiment, as shown in FIG. 9, an AF target frame 603 indicating an AF target area set as an AF target area to be focused is displayed on the liquid crystal display unit 119.

  Here, when the relative positional relationship between the camera body 101 and the display device 102 does not change, the AF target frame 603 is displayed using a method such as pattern recognition for the AF target set by the AF unit 151 of the control unit 107. The display control unit 154 displays the AF target frame 603 on the liquid crystal display unit 119 of the display device 102. At this time, the parallax correction described in the first embodiment, the conversion process from the relative positional relationship between the camera body 101 and the display device 102 to the display position of the AF target frame 603, and the like are performed. As a result, the position of the AF target frame 603 displayed in the scenery that the photographer actually sees through the liquid crystal display unit 119 of the display device 102 and the AF target set in the shooting screen of the camera body 101 are displayed. The deviation from the position is corrected, and the AF target frame 603 is displayed at an appropriate position on the liquid crystal display unit 119. In this case, since the relative positional relationship between the camera body 101 and the display device 102 does not change, the display control unit 154 of the control unit 107 inputs the position of the AF target tracked by the AF unit 151, and the AF target The position of the AF target frame 603 displayed on the liquid crystal display unit 119 is moved according to the position.

  On the other hand, when the relative positional relationship between the camera main body 101 and the display device 102 changes, the first processing is performed in addition to the processing when the relative positional relationship between the camera main body 101 and the display device 102 does not change. The position of the AF target frame 603 displayed on the liquid crystal display unit 119 may be moved in accordance with the change in the relative positional relationship between the camera body 101 and the display device 102 as described in the embodiment. The movement of the display position of the AF target frame 603 when the relative positional relationship between the camera body 101 and the display device 102 changes can be performed in exactly the same way as the movement of the shooting range frame of the first embodiment. it can. For example, in the flowchart of FIG. 8, it is only necessary to add a process for moving the display position of the AF target frame 603 to step S106.

  As described above, in the camera system 100 according to the present embodiment, the camera main body 101 having the imaging unit 104 and the glasses-type display device 102 are configured as separate housings, and the imaging unit 104 is photographed through the lens optical system 103. Since the shooting range frame indicating the shooting range and the AF target frame are displayed on the liquid crystal display unit 119 of the glasses-type display device 102, a complicated device is not necessary as compared with the case where the shot image itself is displayed on the liquid crystal display unit 119. In addition, since only the shooting range frame and the AF target frame are displayed on the liquid crystal display unit 119, an image with a natural atmosphere can be taken without causing any trouble to the photographer.

  In each embodiment, the display monitor is provided only on one side of the spectacles-type display device for easy understanding. However, the display monitor is provided on both the left and right lenses of the spectacles-type display device. A selection unit for selecting a display monitor may be provided in either the eyeglass-type display device or the camera body so that the user can freely switch the display monitor that displays the shooting range frame and the AF target frame. As a result, since the shooting range frame and the AF target frame are displayed on the lens on the user's dominant eye side, visibility is improved without a sense of incongruity, and positional deviation due to parallax is reduced.

  In this embodiment, the case where the shooting range frame and the AF target frame are displayed has been described, but information such as the shutter speed, date / time, zoom position, and shooting mode is also displayed on the liquid crystal display unit 119 of the display device 102. It doesn't matter.

  Further, when the relative position between the camera body 101 and the glasses-type display device 102 has changed, the color of the shooting range frame or the AF target frame may be changed or blinked. As a result, the user can know that the relative position between the camera body 101 and the display device 102 is changing. Alternatively, only when the position of the camera body 101 is changed, the color of the shooting range frame and the AF target frame may be changed or blinked. Thus, the user can know that the camera body 101 is moving on the liquid crystal display unit 119 of the display device 102, so that the user can know the timing of pressing the release button 122a, and the camera shake can be prevented.

  Further, when a zoom lens is used as the lens optical system 103, a maximum zoom-up range frame and a maximum zoom-out range frame indicating the zoom range of the attached zoom lens are displayed on the liquid crystal display unit 119 of the display device 102. It doesn't matter. Thus, the photographer can know in advance how far the zoom-in or zoom-out is possible, and convenience in determining the shooting composition is improved.

  As described above, in the camera system 100 according to the present invention, the camera body 101 having the imaging unit 104 and the glasses-type display device 102 are configured in separate housings, and the imaging range indicating the imaging range of the imaging unit 104 is shown. Since only the information such as the frame and the AF target frame is displayed on the glasses-type display device 102, a complicated device for displaying a moving image is not necessary, and an image with a natural atmosphere is not obstructed by the photographer. You can shoot.

1 is a block diagram of a camera system 100 according to each embodiment. 2 is an explanatory diagram showing a usage pattern of a camera system 100. FIG. It is explanatory drawing which shows an example which measures a relative positional relationship. It is explanatory drawing which shows the imaging | photography range of the camera main body 101, and the photographer's 201 visual field range. It is explanatory drawing which shows the display state of an imaging | photography range frame. It is explanatory drawing which shows the imaging | photography range of the camera main body 101, and the photographer's 201 visual field range. It is explanatory drawing which shows parallax correction | amendment. It is a flowchart which shows the process which displays an imaging | photography range frame. It is explanatory drawing which shows the example of a display of AF target frame in 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Camera system 101 ... Camera main body 102 ... Display apparatus 103 ... Lens optical system 104 ... Imaging part 105 ... Image processing part 106 ... Memory 107 ... Control part 108 ... Memory IF 109 ... Operation panel 110 ... AF sensor 111 ... AE sensor 112 ... Lens control unit 113 ... Light emitting unit 114 ... Display IF 116 ... Ranging unit 115 ... 3-axis sensor 117 ... Cable 118 ... Memory card 119 ... Liquid crystal display unit 120 ... Distance measuring unit 121 ... 3-axis sensor 122a ... Release button 151 ... AF unit 152 ... AE unit 153 ... Direction calculation unit 154 ... Display control unit

Claims (5)

A camera system in which a camera housing having an imaging unit that captures an image via a lens optical system and a display housing having a display unit that displays an image captured by the camera housing are configured as separate housings. There,
The display housing includes a first direction detection unit that detects a position of the display housing in three axial directions,
The camera housing is
A second direction detector for detecting a position of the camera casing in the three-axis direction;
Using the second position information output from the second direction detection unit and the first position information output from the first direction detection unit of the display casing, the camera casing and the display casing A direction calculation unit for calculating the relative position of
A lens information acquisition unit for acquiring lens information of the lens optical system;
Display control for setting a shooting range frame indicating a shooting area of an image shot by the imaging unit in the display unit according to the relative position calculated by the direction calculation unit and the lens information acquired by the lens information acquisition unit And a camera system. The camera system according to claim 1,
The camera system characterized in that the display casing is integrated with a photographer's head movement and is mounted at a position where the photographer can visually recognize the display casing. The camera system according to claim 2,
The camera system according to claim 1, wherein the display housing has a glasses-type housing shape. The camera system according to any one of claims 1 to 3,
The display housing includes a release button that instructs the imaging unit of the camera housing to perform photographing. In the camera system according to any one of claims 1 to 4,
The camera housing further includes an AF control unit capable of setting an AF (autofocus) area,
The display control unit sets the shooting range frame indicating a shooting region and the AF range frame indicating the AF region in the display unit.

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