JP5275789B2 - camera - Google Patents

Description

The present invention relates to a camera capable of obtaining a stereoscopic image based on the captured image from a plurality of different viewpoints.

  A technique for capturing a still image or a moving image (stereoscopic image) that can be stereoscopically displayed by capturing the same subject from a plurality of different viewpoints is known.

  As a method of photographing a stereoscopic image, for example, as disclosed in Japanese Patent No. 3722498, a method of photographing from a plurality of viewpoints while moving one camera by a predetermined distance is known. In addition, as a method of photographing a stereoscopic image, a method of photographing using a camera having two imaging lenses arranged apart from each other by a predetermined distance, or two cameras separated from each other by a predetermined distance. There is a known method for shooting in a fixed state.

Also, with the development of image processing technology for generating a stereoscopic image and the development of a display device for displaying a stereoscopic image, a user can easily appreciate a stereoscopic image in the same way as a user appreciates a general still image or moving image. It is becoming possible.
Japanese Patent No. 3722498

  For example, in the technology for taking a stereoscopic image disclosed in Japanese Patent No. 3722498, since a single camera is moved and taken from a plurality of viewpoints, a complicated configuration is required, including preparation. The operation up to the shooting is complicated. In addition, a dedicated complex configuration is also required in a technique for capturing a stereoscopic image using a camera including two imaging lenses and two cameras whose positions are fixed.

The present invention has been made in view of the above problems, and an object thereof is to provide a camera capable of easily capturing the stereoscopic image in a small device configuration.

The camera of the present invention includes an imaging unit that captures a subject and obtains a first image, a communication unit that can receive a second image captured by one or more external devices, the first image and the first image An image processing unit that recognizes a main subject of the second image and calculates composition information including a positional relationship between the main subject and the background; and the main subject of the first image and the second image is the same. And the first image is determined when the positional relationship between the main subject and the background of the first image and the second image is stereoscopically viewable from the comparison of the composition information. And the second image, a determination unit that determines that a stereoscopic image can be generated, a display unit that displays a determination result of the determination unit , composition information of the first image, and the second image From the composition information of the main subject and the camera Anda position estimation unit that estimates a relative height direction of the positional relationship between the external device, wherein the display unit, to an optimum position where the positional relationship between the camera and the external device is horizontal The advice display that prompts the user to move the camera or the external device is performed .

  A preferred embodiment of the camera of the present invention will be described with reference to the drawings. In each drawing used for the following description, the scale is different for each component in order to make each component large enough to be recognized on the drawing. It is not limited only to the quantity of the component described in the figure, the shape of the component, the ratio of the size of the component, and the relative positional relationship of each component.

  FIG. 1 is a view showing a state of photographing using a camera according to the present invention. FIG. 2 is a diagram schematically showing a state of shooting using the camera according to the present invention as viewed from above. FIG. 3 is a block diagram illustrating a schematic configuration of the camera. FIG. 4 is a diagram illustrating an example of a photographing result when the relative position of the two cameras is the optimum position. FIG. 5 is a diagram illustrating an example of a photographing result when the positional relationship between the two cameras is not horizontal. FIG. 6 is a diagram illustrating an example of advice display. 7 and 8 are flowcharts for explaining the operation at the time of shooting by the camera. FIG. 9 is a flowchart illustrating the shooting mode setting process. FIG. 10 is a flowchart illustrating the comparison determination process. FIG. 11 is a diagram illustrating an example of displaying a region where a stereoscopic image can be generated.

  A camera 1 according to the present invention is an apparatus capable of capturing at least one of a still image and a moving image (hereinafter simply referred to as an image). For example, as shown in FIG. 1 and FIG. The same main subject 100 is photographed from different viewpoints, and an image capable of displaying at least the main subject in three dimensions (hereinafter simply referred to as a stereoscopic image) is obtained from the obtained images.

  In the following, as an example, a configuration for obtaining a stereoscopic image using two cameras 1 having the same configuration shown in FIG. 3 will be described, and when it is necessary to distinguish between the two cameras 1. The camera 1 positioned on the right side of the subject 100 is referred to as a camera 1R, and the camera 1 positioned on the left side of the subject 100 is referred to as a camera 1L (see FIG. 2).

  1 and 2 show a state in which the cameras 1R and 1L are held by the two photographers 101R and 101L, but at least one of the cameras 1R and 1L is fixed to a tripod or the like. Alternatively, a single photographer may hold the cameras 1R and 1L. Further, the acquisition of the stereoscopic image may be performed by three or more cameras 1.

  As shown in FIG. 3, the camera 1 is a control for controlling the operation of each component of the imaging unit 4, the display unit 5, the recording unit 6, the operation determination unit 7, the communication unit 8, and the camera 1. Part 2. Although not shown, the camera 1 is provided with a power supply unit for supplying power necessary for the operation of each component of the camera 1.

  The imaging unit 4 includes an imaging element unit 42, an imaging lens unit 41, and a lens driving unit 43. The imaging element unit 42 includes a light receiving surface configured by arranging a plurality of pixel units, photoelectrically converts an optical image formed on the light receiving surface into an electrical signal, and outputs the image as an image.

  The imaging lens 41 includes a lens and forms a subject image on the light receiving surface of the imaging element 42. At least a part of the imaging lens 41 can be moved by a lens driving unit 43 including an actuator such as an electric motor so that the focusing distance changes.

  Note that the imaging lens 41 may be a so-called zoom lens in which the focal length changes, and in that case, the zoom operation may be performed by the lens driving unit 43. The imaging unit 4 is appropriately provided with a diaphragm device, an ND filter, a shutter device, a low-pass filter, a mirror, a prism, and the like. An image obtained by the imaging unit 4 is output to the control unit 2 described later.

  The display unit 5 is a display device that can display an image, and includes, for example, a liquid crystal display device or an organic EL display device. The display unit 5 performs finder display (live view display) for displaying images obtained by the imaging unit 4 while sequentially updating them, displaying shooting results, and displaying shooting conditions and operation modes.

  The recording unit 6 is a device capable of recording information, and includes a recording medium such as a semiconductor non-volatile memory and a small hard disk drive. The recording unit 6 may be separate from the camera 1 and may be capable of exchanging information with the camera 1 by a wired or wireless communication format.

  The operation determination unit 7 is a device that determines an input of an instruction operation such as release or operation mode switching by a user, and includes a switch, a sensor, and the like. The configuration of the operation determination unit 7 is not particularly limited, and includes, for example, a push switch, a lever switch, a touch panel, a geomagnetic sensor, an acceleration sensor, a pressure sensor, and the like. Note that the operation determination unit 7 may include a so-called remote control device that can remotely operate the camera 1 by wire or wirelessly.

  The communication unit 8 is a device capable of transmitting and receiving information such as an image and composition information described later with an external device in a predetermined wired or wireless communication format. Note that the communication format used by the communication unit 8 is not limited to that using radio waves, and may be a communication format using light such as infrared light or visible light.

  The communication unit 8 may be capable of transmitting and receiving information for controlling the operation of the camera 1. In other words, the camera 1 can transmit information for controlling the operation of another camera 1 that is an external device via the communication unit 8, and is based on information from the other camera 1 received by the communication unit 8. Can operate.

  The control unit 2 is configured to include an arithmetic device, a storage device, an input / output device, a power control device, and the like, and is a control device that controls the operation of each unit configuration of the camera 1 described above based on a predetermined program.

  The control unit 2 includes an image processing unit 30, a display control unit 21, a position estimation unit 22, and a clock unit 23 as means necessary for realizing the operation of the camera 1 described later. The mounting of the image processing unit 30, the display control unit 21, the position estimation unit 22, and the clock unit 23 in the control unit 2 may be hardware or software.

  The image processing unit 30 performs predetermined image processing on the image captured by the imaging unit 4, the image received from the external device by the communication unit 8, and the image recorded in the recording unit 6. The contrast calculation unit 31, a face recognition unit 32, a composition information calculation unit 33, and a determination unit 34.

  The contrast calculation unit 31 calculates a contrast value at a plurality of predetermined coordinate positions in the image, and calculates a contrast distribution of the image. The information on the contrast distribution calculated by the contrast calculation unit 31 is used for the composition information calculation unit 33 described later. The information on the contrast distribution may be used for a so-called contrast detection type autofocus operation.

  The face recognition unit 32 recognizes a portion estimated as a human face in an image by pattern matching or the like, and determines its location and size. The recognition result by the face recognition unit 32 is used in a composition information calculation unit 33 described later. Note that the recognition result obtained by the face recognition unit 32 may be used for determination of a focus position or determination of exposure conditions in an autofocus operation.

  The composition information calculation unit 33 recognizes a main subject in the image and at least one of the foreground and the background, and calculates composition information including a positional relationship between the main subject and at least one of the foreground and the background.

  The method for recognizing the main subject, foreground, and background in the image in the composition information calculation unit 33 is not particularly limited. For example, the presence of a human face of a predetermined size or more in the image by the face recognition unit 32 And the contrast value of the area where the face exists is higher than a predetermined value, the face can be recognized as the main subject, and the other area can be recognized as the foreground or background.

  The composition information includes, for example, information such as the position in the image of the face of the person recognized as the main subject by the face recognition unit 32 and the ratio of the face to the image, and the face of the person recognized as the main subject. It is composed of a combination of patterns and color distribution information existing in the vicinity.

  The main subject, foreground and background in the image are recognized by, for example, calculating motion vectors of a plurality of regions in the image by comparing one or a plurality of images taken immediately before with the latest image. It is also possible to do this, or based on distance information obtained by the autofocus operation.

  The method of calculating the positional relationship between the main subject and at least one of the foreground and the background in the composition information calculation unit 33 is not particularly limited. For example, the hue is predetermined in an area recognized as the background of the image. By determining a lump that falls within the range as a representative object representing the background, it is possible to calculate where the representative object of the background is located with respect to the main subject.

  The determination unit 34 compares the composition information for a plurality of images calculated by the composition information calculation unit 33, and calculates whether a stereoscopic image can be generated by combining the compared images.

  Whether or not a three-dimensional image can be generated between images, for example, whether the same main subject exists in the image, whether or not the size of the main subject in the image is the same, and effective for the distance of the main subject It is determined depending on conditions such as whether or not a good parallax is obtained and whether or not the shooting interval is a predetermined value or less.

  The display control unit 21 controls the display image on the display unit 5. Although described in detail later, the display control unit 21 causes the display unit 5 to display a determination result of whether or not a stereoscopic image can be generated performed by the determination unit 34 in addition to the image.

  The position estimation unit 22 compares the composition information for a plurality of images calculated by the composition information calculation unit 33, and the image between the main subject, the camera 1, and the external device at the time when the compared combination images are captured. The relative positional relationship is estimated.

  The clock unit 23 is for recording the date and time of the image captured by the imaging unit 4. The date and time read from the clock unit 23 is added to the image shot by the camera 1 as shooting date and time information.

  Note that the clock unit 23 is preferably adjusted so as to be synchronized with the clock unit 23 provided in another camera 1 by communication via the communication unit 8, but for example, a GPS function, a so-called radio clock, etc. It may have a function of receiving a standard radio wave used, a function of connecting to an NTP server on a communication line, and the like, and adjusting the clock unit 23 provided in each camera 1.

  Below, operation | movement of the control part 2 which has the structure mentioned above is demonstrated. In the following description, as an example, two cameras 1R and 1L are used to capture an image in which a person is a main subject 100 and a tree located behind the subject is a background 110, as shown in FIG. And

  When generating a stereoscopic image from the images 120R and 120L photographed by the two cameras 1R and 1L, the cameras 1R and 1L are in a substantially horizontal positional relationship with each other and at substantially the same distance from the main subject 100, and an imaging lens unit It is preferable that the focal lengths of 41 are substantially the same.

  Under these preferable conditions, as shown in FIG. 4, the size of the main subject 100 in the images 120R and 120L is substantially the same, and the size of the background 110 and the relative position in the vertical direction (top and bottom direction) with respect to the main subject 100 are It almost agrees.

  That is, when the sizes of the main subject 100 in the images 120R and 120L are not substantially the same, the determination unit 34 determines that a stereoscopic image cannot be generated from a combination of corresponding images. Furthermore, in this case, the position estimation unit 22 estimates that the focal lengths of the imaging lens units 41 of the cameras 1R and 1L are different or that the distances of the cameras 1R and 1L from the main subject 100 are different. Then, the position estimation unit 22 displays an advice display that prompts the user to align the distances of the cameras 1R and 1L with respect to the main subject 100 on the display unit 5.

  As shown in FIG. 5, when the vertical relative position of the background 110 with respect to the main subject 100 in the images 120R and 120L is not substantially the same, the determination unit 34 cannot generate a stereoscopic image from a combination of corresponding images. It is determined that Further, in this case, the position estimation unit 22 estimates that the cameras 1R and 1L are not in a substantially horizontal positional relationship. Then, the position estimation unit 22 displays on the display unit 5 an advice display that prompts the user to align the heights of the cameras 1R and 1L.

  In the case as illustrated in FIG. 5, the position estimation unit 22 estimates that the camera 1R is at a relatively low position with respect to the camera 1L. Then, the position estimation unit 22 displays an advice display that prompts the user to raise the position where the camera 1R is held on the display unit 5 of the camera 1R, or lowers the position where the camera 1L position is held on the display unit 5 of the camera 1L. The advice display prompting is displayed.

  As a form of the advice display, for example, as shown in FIG. 6, the display unit 5 of the camera 1L displays the optimum position of the background 110 superimposed on the live view display of the image 120L, and the background 110 is displayed at the optimum position. A mode in which an operation necessary for matching is displayed with the characters 121 and the schematic diagram 122 is conceivable.

  In general, a taller person holding a camera lower than a taller person holding the camera higher has a longer movable distance and easier posture. It is preferable to display the advice so that it is held low.

  If the camera 1 has a shake correction function that corrects image blur due to camera shake or the like during shooting, the image shooting range is automatically set so that the composition approaches the optimum position using the shake correction function. It is also possible to move it. The blur correction function may be configured to move the imaging lens unit 41 or the image sensor 42 in accordance with the shake amount of the camera 1, and the capture area in the image sensor 42 is electronically changed in accordance with the camera 1 shake amount. It may be a form that is moved.

  If the transmission / reception speed of the information of the communication unit 8 is sufficient for the capacity and frame rate of the image captured by the imaging unit 4, the determination unit 34 and the position estimation unit 22 are not the composition information but the imaging unit. 4 may directly receive the captured image and perform the above processing based on the image.

  Next, the main routine of the operation at the time of shooting of the camera 1 having the above-described configuration will be described along the flowcharts shown in FIGS. First, in step S01, it is determined whether or not the operation mode of the camera 1 is a shooting mode.

  If it is determined in step S01 that the shooting mode has been switched to another operation mode for the user's input operation or automatic transition to the sleep state, the process proceeds to step S02. In step S02, the display on the display unit 5 can be switched to a playback mode in which an image is reproduced and displayed, or to another mode such as a power saving mode.

  In step S03, it is determined whether or not the operation mode of the camera 1 is the shooting mode setting mode. Here, the shooting mode setting mode is a mode for the user to set operation conditions and the like at the time of shooting of the camera 1. In the present invention, a mode for establishing communication (establishing a pair) with another camera 1. Is included.

  If it is determined in step S03 that the operation mode of the camera 1 is not the shooting mode setting mode, the shooting mode is ended and the operation mode of the camera 1 is switched to another operation mode.

  On the other hand, if it is determined in step S03 that the operation mode of the camera 1 is not the shooting mode setting mode, the shooting mode setting process shown in the flowchart of FIG. 9 is executed.

  In the shooting mode setting process, first, in step S40, it is determined whether or not a stereoscopic image shooting setting mode is selected. If it is not the stereoscopic image shooting setting mode, the process proceeds to step S41, and processing of the selected setting mode is executed.

  On the other hand, if it is determined in step S40 that the mode is the stereoscopic image shooting setting mode, the process proceeds to step S42 to perform communication pairing processing with another camera 1 that is an external device via the communication unit 8. Send a request radio wave to start. And as shown to step S43, when there exists reaction from the other camera 1 with respect to a request radio wave, it transfers to the following step S44.

  In step S44, communication is started with the camera 1 having the highest radio wave intensity among the other cameras 1 that have responded to the request radio wave from the own device. It should be noted that a connection restriction function such as authentication by passcode input may be provided when establishing communication with the other camera 1.

  After the communication is established, in step S45, a display asking the user whether to use the camera 1 (own device) as a master is displayed on the display unit 5. Here, the master refers to the side of the pair of cameras 1 that performs composition information comparison processing, which will be described later, and the other side is referred to as a slave. In the following description, it is assumed that the camera 1R is set as a master and the camera 1L is set as a slave.

  If it is determined in step S46 that an operation input has been made by the user via the operation determination unit 7 that the own device is not set as a master (the own device is set as a slave), the process proceeds to step S47 and communication is performed. It is confirmed whether the other camera 1 being established is set so that the other camera 1 becomes the master.

  If it is determined in step S47 that the other camera 1 is set as the master, the process proceeds to step S51 to establish pairing with the other camera, and thereafter the other camera that is the target of this pairing. Communication with 1 continues.

  On the other hand, if it is set in step S47 that the other cameras 1 are not set to be the master as in the case of the own device, a warning message indicating that pairing cannot be established is displayed on the display unit 5 in step S48. Return to step S46.

  If it is determined in step S46 that the user has made an operation input using the own device as a master via the operation determination unit 7, the process proceeds to step S49, and another camera that has established communication. 1, it is confirmed whether or not the other camera 1 is set to be a slave.

  If it is determined in step S49 that the other camera 1 is set as a slave, the process proceeds to step S51 to establish pairing with another camera, and thereafter another camera that is the target of this pairing. Communication with 1 continues.

  On the other hand, if it is determined in step S49 that the other camera 1 is also set to be the master like its own device, a warning is displayed in step S50 to indicate that pairing cannot be established. Return to S46.

  Thus, the shooting mode setting process ends. The main routine of the operation at the time of shooting by the camera 1 shown in FIGS. 7 and 8 will be described again.

  If it is determined in step S01 that the operation mode of the camera 1 is the shooting mode, the process proceeds to step S11 and the display unit 5 starts live view display. In step S12, it is determined whether or not a setting has been made so that the own device becomes a master when communication with another camera is established.

  If it is determined in step S12 that the own device is set as a master, the process proceeds to step S13. In step S13, a request is made to transmit the latest image composition information to another camera 1 serving as a slave via the communication unit 8, and the process proceeds to step S14.

  In step S14, the comparison determination process shown in the flowchart of FIG. 10 is executed.

  In the comparison determination display process, first, in step S60, it is determined whether composition information from another camera 1 as a slave has been acquired. If composition information from another camera 1 cannot be acquired, the process proceeds to step S61, and a normal two-dimensional image is captured on the display unit 5 only by the single camera 1 (own device). Is displayed.

  On the other hand, if composition information from another camera 1 can be acquired in the determination in step S60, the composition information of the latest image acquired by the imaging unit 4 of the own device by the determination unit 34 in step S62, The latest composition information acquired from another camera 1 (slave) is compared.

  In step S63, it is determined whether or not the sizes of the main subjects substantially match by comparing the composition information. Here, if the size of the main subject does not substantially match, the process proceeds to step S64, and the distance to the main subject or the focal length (view angle) differs between the own device and the other camera 1, so that the three-dimensional. A warning that an image cannot be generated is displayed on the display unit 5.

  Next, in step S65, it is determined from the comparison of the composition information whether the vertical position of the background with respect to the main subject substantially matches. If the vertical position of the background relative to the main subject does not substantially match, the process proceeds to step S66, and the height relative to the main subject (position in the vertical direction) is determined between the own device and the other camera 1. ) Are different, a warning that a stereoscopic image cannot be generated is displayed on the display unit 5.

  Next, in step S67, the latest image acquired by the imaging unit 4 of the own device and the latest image acquired by another camera 1 (slave) based on the comparison result of the composition information by the determination unit 34. From this, it is determined whether or not a stereoscopic image can be generated.

  If it is determined in step S67 that a stereoscopic image can be generated, as shown in FIG. 11, a display 123 (in FIG. 11) showing a region where a stereoscopic image can be generated is displayed on the live view display of the display unit 5. (Shaded area) is superimposed and displayed, and the process returns to the flowcharts shown in FIGS.

  On the other hand, if it is determined in step S67 that a three-dimensional image cannot be generated, the above-described advice display as shown in FIG. 6 is displayed on the display unit 5, and the process returns to the flowcharts shown in FIGS. .

  Thus, the comparison determination process ends. The main routine of the operation at the time of shooting by the camera 1 shown in FIGS. 7 and 8 will be described again.

  After the execution of the comparison determination process in step S14, it is determined in step S15 whether or not an operation input for starting photographing has been made by the user via the operation determination unit 7. If it is determined that an operation input for starting shooting has not been made, the process returns to step S11.

  If it is determined in step S15 that an operation input for starting photographing has been made, the process proceeds to step S16, and the image acquired by the imaging unit 4 is recorded in the recording unit 6.

  In step S <b> 17, it is determined whether it is possible to determine whether to generate a stereoscopic image in the comparison determination process. If it is determined in the comparison determination process that a stereoscopic image can be generated, in step S18, the other camera 1 that is the slave is requested to transmit the latest image, and the image received from the slave is received in step S16. The image is recorded in the recording unit 6 in association with the image photographed by the own device recorded in the above. On the other hand, if it is determined in the comparison determination process that a stereoscopic image cannot be generated, step S18 is skipped.

  In step S <b> 19, it is determined whether or not an operation input for ending photographing has been made by the user via the operation determination unit 7. If it is determined that the operation input for ending photographing has not been made, the process returns to step S16 to repeat image recording. On the other hand, if it is determined that an operation input for ending photographing has been made, the main routine is terminated and the main routine is repeated.

  Note that if it is determined by the comparison determination process in step S14 that generation of a stereoscopic image can be determined, step S15 is skipped, and recording of an image to the recording unit 6 is automatically started. Also good.

  Next, a description will be given of a case where in the determination of step S12, the own device is set to be a slave. If it is set that the own device is a slave, the process proceeds to step S31.

  In step S31, it is determined whether or not a composition information transmission request has been received from another master camera 1. When the composition information transmission request from the master has been received, the process proceeds to step S32, and the composition information calculated by the composition information calculation unit 33 based on the latest image is transmitted to the master via the communication unit 8. . Then, control goes to a step S33. If it is determined in step S31 that a composition information transmission request from the master has not been received, step S32 is skipped and the process proceeds to step S33.

  In step S33, it is determined whether or not an operation input for starting photographing has been made by the user via the operation determination unit 7 of the own device. If it is determined that an operation input for starting shooting has not been made, the process returns to step S11.

  If it is determined in step S33 that an operation input for starting photographing has been made, the process proceeds to step S34, and the image acquired by the imaging unit 4 is recorded in the recording unit 6. In step S <b> 35, it is determined whether or not an operation input for ending photographing has been made by the user via the operation determination unit 7. When it is determined that the operation input for ending the shooting has not been made, the process returns to step S34 and the image recording is repeated. On the other hand, if it is determined that an operation input for ending photographing has been made, the main routine is terminated and the main routine is repeated.

  The camera 1 described above can obtain a stereoscopic image based on images taken from a plurality of different viewpoints, and the main subject 100 of an image taken by the own device and an image taken by another camera 1. , Calculate composition information including a positional relationship between the main subject 100 and at least one of the foreground and the background, and determine whether a stereoscopic image can be generated from the comparison of the composition information, The result is displayed on the display unit. With this feature, it is possible to easily shoot a stereoscopic image based on the display on the display unit without strictly positioning two or more cameras 1 using a dedicated configuration.

  Further, in order to realize this feature, a configuration that must be added to a so-called general camera capable of taking a two-dimensional image is only a part of the control unit 2 and the communication unit 8 as shown in FIG. is there. For this reason, the size of the camera 1 according to the present invention is the same as that of the conventional camera, and the convenience is improved as compared with the conventional case in which a large-scale configuration is required for taking a stereoscopic image.

  Note that the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit or idea of the invention that can be read from the claims and the entire specification. A camera system is also included in the technical scope of the present invention.

  The camera and camera system according to the present invention are not limited to the form described in the above-described embodiment, but are a recording device, a mobile phone, a PDA, a personal computer, a game machine, a digital media player, a television equipped with an imaging device (camera function). Needless to say, the present invention is also applicable to electronic devices such as GPS and watches.

It is a figure which shows the mode of imaging | photography using the camera which concerns on this invention. It is a figure which shows typically the state which looked at the mode of imaging | photography using the camera which concerns on this invention from upper direction. It is a block diagram explaining the schematic structure of a camera. It is a figure which shows the example of the imaging | photography result in case the relative position of two cameras is an optimal position. It is a figure which shows the example of the imaging | photography result when the positional relationship of two cameras is not horizontal. It is a figure which shows the example of an advice display. It is a flowchart explaining the operation | movement at the time of imaging | photography of a camera. It is a flowchart explaining the operation | movement at the time of imaging | photography of a camera. It is a flowchart explaining an imaging mode setting process. It is a flowchart explaining a comparison determination process. It is a figure which shows the example which displays the area | region which can produce | generate a stereo image.

Explanation of symbols

1 (1R, 1L) camera,
2 control unit,
4 Imaging unit,
5 Display section,
6 Recording section,
7 Operation determination part,
8 Communication Department,
21 display control unit,
22 position estimation unit,
23 Clock part,
30 Image processing unit,
31 contrast calculation unit,
32 Face recognition unit,
33 Composition information calculation unit,
34 judgment part,
41 imaging lens unit,
42 image sensor,
43 Lens drive unit,
100 main subjects,
110 Background.

Claims (1)

An imaging unit for capturing a subject and obtaining a first image;
A communication unit capable of receiving a second image taken by one or more external devices;
An image processing unit that recognizes a main subject of the first image and the second image and calculates composition information including a positional relationship between the main subject and a background;
The main subject of the first image and the second image is the same, and the positional relationship between the main subject of the first image and the second image and the background is three-dimensionally based on a comparison of the composition information. A determination unit that determines that a three-dimensional image can be generated by the first image and the second image when it is determined that the state is visible;
A display unit for displaying a determination result of the determination unit;
A position estimation unit that estimates a relative height-direction positional relationship between the main subject, the camera, and the external device from a comparison of the composition information of the first image and the composition information of the second image. When,
Equipped with,
The display unit performs an advice display for prompting movement of the camera or the external device to an optimum position where a positional relationship between the camera and the external device is horizontal .

Images