JP4769589B2 - Imaging apparatus and control method thereof - Google Patents

Description

  The present invention relates to an imaging apparatus including a solid-state imaging device that converts a subject image into an electrical signal and a control method thereof.

  In recent years, solid-state imaging devices having more than several million pixels are often used in imaging devices such as digital still cameras. Such a multi-pixel solid-state imaging device is very useful for taking a high-definition still image.

  On the other hand, when a moving image is shot with such a multi-pixel solid-state image sensor, pixel thinning processing or pixel addition processing is generally performed due to the problem of processing time. Strictly speaking, the thinning process and the addition process are different processes, but here both are collectively referred to as “thinning”. In many solid-state imaging devices, when reading out signal charges from pixels, a method of thinning out in the vertical direction, that is, thinning out signal charges of pixels in each horizontal line at a constant rate is used.

  By the way, whether it is a still image or a moving image, depending on the subject, the camera is set so that the shot image is horizontally long, or the camera is set so that the shot image is vertically long. The captured image can be reproduced on a PC or a TV monitor as well as the camera itself. Usually, the screen of the playback device is horizontally long. For example, in an NTSC TV, the aspect ratio of vertical: horizontal is 3: 4. Most image sensors are configured to match this aspect ratio, and when a playback process is performed on a horizontally long image as it is on a playback device as it is, a natural playback image without a sense of incongruity can be obtained. Become.

  On the other hand, if an image shot vertically is played back as it is by a playback device, an image with the subject tilted sideways is played back, making the playback image very difficult to see. As an example of the countermeasure, Japanese Patent Application Laid-Open No. 2004-228561 detects the camera posture at the time of still image shooting, and changes the recording direction (horizontal or vertical) of the still image according to the detection result. For this reason, even if a still image shot vertically is reproduced, the reproduced image has no sense of incongruity.

JP-A-7-143434

  As described above, when capturing a moving image, it is common to perform a thinning process due to the problem of processing time. In many solid-state imaging devices, when reading a signal charge from a pixel, the thinning is performed in the vertical direction. In other words, the signal charges of the pixels on each horizontal line are read out at a constant rate. At this time, the number of pixels of the image signal immediately after being read from the solid-state image sensor is all pixels in the horizontal direction (for example, about 2500 pixels in the case of a CCD of 500 pixel class), but the vertical direction is thinned out. Therefore, in some cases, it is about 1/10 of the horizontal direction.

  Here, in particular, when the reproduction is performed on the TV monitor, the upper limit of the vertical resolution of the TV monitor is determined by the number of scanning lines. You only need to have minutes. As described above, in the thinning readout at the time of moving image shooting, since the image signal thinned out in the vertical direction is output from the solid-state imaging device, it can be said that this is a reading method suitable for the characteristics of the TV monitor. .

  However, when shooting in a direction that produces a vertically long image, considering that the moving image is played back in a direction that does not cause a sense of incongruity, it is sufficient in the vertical direction on a TV monitor. Although there are the number of pixels, there is a problem that the horizontal resolution on the TV monitor is lowered because the number of pixels is small because the readout is thinned out in the horizontal direction.

  The present invention has been made in view of this problem, and is capable of suppressing a decrease in horizontal resolution in a display device even when a moving image captured with the imaging device held vertically is reproduced. An object is to provide an apparatus.

Imaging apparatus of the present invention, a solid-state imaging device for converting an object image into an electrical signal, detects the orientation of the device itself, a posture detection means for outputting a position signal based on the detected position, the time of shooting a moving image, Based on the attitude signal, a first addition reading mode that reads out by adding electrical signals of a certain number of pixels positioned in the vertical direction of the solid-state image sensor, and a certain number of signals positioned in the horizontal direction of the solid-state image sensor Control means for controlling the solid-state imaging device to be driven in any one of the second addition readout modes in which the electrical signals of the pixels are added and read out.

Control method for an imaging apparatus of the present invention is a control method of an image pickup apparatus including a solid-state imaging device for converting an object image into an electrical signal, it detects the orientation of the image pickup apparatus, attitude signal based on the detected posture And a first addition reading mode for adding and reading out the electrical signals of a certain number of pixels located in the vertical direction of the solid-state imaging device based on the posture signal at the time of capturing a moving image. A control step of controlling the solid-state imaging device to be driven in any one of a second addition reading mode in which electric signals of a certain number of pixels positioned in the horizontal direction of the solid-state imaging device are added and read. Have.

  According to the present invention, since the posture of the imaging device is detected and the driving of the solid-state imaging device is controlled based on the detected posture, the moving image captured by holding the imaging device vertically is reproduced. Even if it exists, it becomes possible to suppress the fall of the horizontal resolution in a display apparatus.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings.

(First embodiment)
FIG. 1 is a block diagram illustrating a schematic configuration of the imaging apparatus according to the first embodiment.
The lens unit 10 collects an optical image from the subject. The CCD 11 is a solid-state imaging element that is formed by arranging pixels including photoelectric conversion elements in a two-dimensional matrix, and that converts a subject image incident through the lens unit 10 into an electrical signal. The analog signal processing circuit 12 processes the analog signal output from the CCD 11. The timing generation circuit 13 instructs the drive timing of the CCD 11 and the operation timing of the analog signal processing circuit 12.

  The A / D converter 14 converts the analog signal processed by the analog signal processing circuit 12 into a digital signal. The digital signal processing circuit 15 includes an image memory and performs various signal processing on the digital signal converted by the A / D converter 14 to generate image data.

  The recording medium 16 is for recording the image data generated by the digital signal processing circuit 15. The display device 17 is a liquid crystal monitor (LCD) attached to the imaging device main body, or a PC or TV monitor connected to the imaging device, and displays the image data generated by the digital signal processing circuit 15. Is. The posture detection device 19 detects the posture of the device (imaging device) at the time of shooting, and outputs a posture signal based on the detected posture to the CPU 18. The CPU 18 comprehensively controls the operation of each circuit or unit of the imaging apparatus. In particular, when an attitude signal is input from the attitude detection device 19, the CPU 18 controls the driving method of the CCD 11 based on the attitude signal. The photographing mode input device 20 is constituted by, for example, a mode dial or the like, and is used for inputting a photographing mode desired by the photographer.

Next, an operation at the time of subject shooting of the imaging apparatus according to the present embodiment will be described.
The CPU 18 controls the aperture of the lens unit 10 according to the brightness of the subject to adjust the amount of light of the subject image incident on the CCD 11 and further changes the charge accumulation time of the CCD 11 via the timing generation circuit 13. Control exposure.

  In the CCD 11, for each pixel, the subject image formed on the image receiving surface is converted into a signal charge (electric signal) of an amount corresponding to the amount of light and accumulated. The signal charges accumulated in each pixel of the CCD 11 are sequentially transferred to an output circuit in the CCD 11 by a transfer pulse input from the timing generation circuit 13 and converted into a signal voltage by the output circuit, and then sequentially read out. Are output to the analog signal processing circuit 12.

  The analog signal processing circuit 12 mainly includes a CDS (correlated double sampling) circuit and a GCA (gain control amplifier), and performs noise removal processing and amplification processing on the analog signal output from the CCD 11. The output from the analog signal processing circuit 12 is input to the A / D converter 14 and converted into a digital signal.

  The digital signal processing circuit 15 performs necessary signal processing on the digital signal converted by the A / D converter 14 according to the purpose. When recording an image, the digital signal processing circuit 15 performs necessary processing, and then the generated image data is output to the recording medium 16. Further, when displaying an image, the digital signal processing circuit 15 performs necessary processing, and then an image based on the generated image data is output to the display device 17.

  FIG. 2 is a schematic diagram illustrating driving in the first thinning readout mode in the CCD 11 of the imaging apparatus according to the first embodiment. As shown in FIG. 2, pixels including photoelectric conversion elements 24 formed of photodiodes are arranged in a two-dimensional matrix in the CCD 11. Each photoelectric conversion element 24 has “G” and “B”. And “R” color filter is provided.

  The signal charge accumulated in the photoelectric conversion element 24 is read out to the vertical transfer path 21 by a read pulse input from the timing generation circuit 13. The signal charges read out to the vertical transfer path 21 are sequentially transferred by the vertical transfer pulse and sent to the horizontal transfer path 22. Further, the signal charges sent to the horizontal transfer path 22 are sequentially transferred to the output circuit 23 by the horizontal transfer pulse, converted into a voltage by the output circuit 23, and then output to the analog signal processing circuit 12.

  The CCD 11 shown in FIG. 2 has, for example, horizontal 2560 × vertical 1920 pixels. In the first thinning-out reading mode, with 8 cycles in the vertical direction as a cycle, only 2 lines out of 8 horizontal lines are read out, and an image signal in which the vertical direction is thinned to 1/4 is output. Here, the pixels of the white characters in FIG. 2 are pixels that are thinned out without being read out. In the first thinning-out readout mode, an image signal for 2560 × 480 pixels is output per frame.

FIG. 3 is a schematic diagram illustrating driving in the second thinning readout mode in the CCD 11 of the imaging apparatus according to the first embodiment.
In the second decimation readout mode, four lines in the vertical direction are used as a cycle, and only two of the four horizontal lines are read out, and an image signal in which the vertical direction is halved is output. Here, as in the case of FIG. 2, the pixels of the white characters in FIG. 3 are pixels that are thinned out without being read out. With this second thinning readout mode, an image signal of 2560 × 960 pixels per frame is output.

FIG. 4 is a flowchart illustrating a first processing example in the moving image shooting mode in the imaging apparatus according to the first embodiment.
When the photographer inputs the moving image shooting mode to the shooting mode input device 20 configured by a mode dial or the like, the CPU 18 shifts the shooting mode of the imaging device to the moving image shooting mode, and first, EVF image display processing is performed. Is performed (step S10). Here, the EVF image is a real-time image displayed on the display device 17 for shooting confirmation (monitoring) that is now taken for granted in an imaging device such as a digital still camera.

  While continuing to display the EVF image, the CPU 18 determines whether or not a release button (not shown) is pressed to turn on the release button (step S11). If the release button is not pressed and not turned on, the process waits in step S11. On the other hand, when the release button is pressed and turned on, the CPU 18 subsequently determines whether the posture of the camera is horizontal or vertical based on the posture signal sent from the posture detection device 19. (Step S12). Here, it is assumed that the orientation in which a horizontally long still image (for example, an image corresponding to 2560 × 1920 pixels) is recorded is “the orientation of the camera is horizontal”, and a still image (for example, 1920 × 2560) It is assumed that the orientation in which the image of pixels) is recorded is “the camera posture is vertical”.

  If it is determined in step S12 that the orientation of the camera is horizontal, then the CPU 18 controls the CCD 11 so that the CCD 11 is driven in the first thinning readout mode (step S13). At this time, the CCD 11 may be controlled via the timing generation circuit 13.

  On the other hand, if it is determined in step S12 that the posture of the camera is vertical, then the CPU 18 controls the CCD 11 so that the CCD 11 is driven in the second thinning readout mode (step S14). At this time, the CCD 11 may be controlled via the timing generation circuit 13.

  After the driving method of the CCD 11 based on the posture of the camera is selected or changed in step S13 or step S14, moving image recording is started (step S15).

FIG. 5 is a flowchart illustrating a second processing example in the moving image shooting mode in the imaging apparatus according to the first embodiment.
When the photographer inputs the moving image shooting mode to the shooting mode input device 20 configured by a mode dial or the like, the CPU 18 shifts the shooting mode of the imaging device to the moving image shooting mode, and first, EVF image display processing is performed. (Step S20).

  Subsequently, the CPU 18 determines whether the posture of the camera is horizontal or vertical based on the posture signal sent from the posture detection device 19 (step S21). When it is determined that the camera is in the horizontal position, the CPU 18 subsequently controls the CCD 11 so that the CCD 11 is driven in the first thinning readout mode (step S22). At this time, the CCD 11 may be controlled via the timing generation circuit 13.

  On the other hand, when it is determined in step S21 that the posture of the camera is vertical, the CPU 18 controls the CCD 11 so that the CCD 11 is driven in the second thinning readout mode (step S23). At this time, the CCD 11 may be controlled via the timing generation circuit 13.

  After the processing of step S22 or step S23 is completed, the CPU 18 subsequently determines whether or not a release button (not shown) is pressed and the release button is turned on (step S24). If the release button is not pressed and not turned on, the process returns to step S21. On the other hand, when the release button is pressed and turned on, recording of a moving image is started (step S25).

  The moving image data recorded on the recording medium 16 can be reproduced not only by the imaging apparatus itself but also by a PC or TV monitor connected to the imaging apparatus.

  FIG. 6 is a schematic diagram showing processing when a moving image is reproduced on a connected TV monitor (display device 17). The TV monitor here is assumed to be an NTSC system that is most commonly used in ordinary households. Here, for example, it is assumed that the image signal sizes 30a and 30b at the time of reading a still image are image signals of horizontal 2560 × vertical 1920 pixels. Further, it is assumed that the image signal size 30a is an image signal when the posture of the camera is photographed horizontally, and the image signal size 30b is an image signal when the posture of the camera is photographed vertically.

  When the posture of the camera is horizontal during moving image shooting, the first decimation readout mode is set. Therefore, the image signal size 31 read out in the first decimation readout mode is 2560 × vertical 480 pixels. Image signal. Here, as the display image size 33 of the TV monitor, for example, since an image signal of 720 × 480 pixels can be displayed, the image signal size 31 is a moving image size of 720 × 480 pixels. To 34.

  If the readout mode is not changed even when the camera is in the vertical position during moving image shooting, the readout image signal size 32 is an image signal of 480 × 2560 pixels. Here, the image signal size 32 is obtained by rotating the image signal output from the CCD 11 by 90 °. When horizontal enlargement is not performed in the reproduction process, the moving image size 35 is an image of 480 pixels in the horizontal direction, and there are areas having no image information on the left and right with respect to the display image size 33 of the TV monitor. It will be displayed in black. Here, considering that the image is displayed in the horizontal direction with respect to the display image size 33 of the TV monitor, the necessary moving image size 36 is an image of 720 × 853 pixels. Therefore, it is necessary to perform enlargement processing in the horizontal direction, and the horizontal resolution of the display image is reduced below the horizontal resolution that can be originally displayed.

  Therefore, in the present invention, when the camera is in the vertical position, the moving image is recorded by setting the second thinning readout mode. FIG. 7 is a schematic diagram illustrating processing when a moving image is reproduced on the TV monitor (display device 17) when the posture of the imaging device is photographed vertically in the imaging device according to the first embodiment. .

  When the posture of the camera is vertical at the time of moving image shooting, the second thinning readout mode is set. Therefore, the image signal size 40 read out in the second thinning readout mode is 960 × 2560 pixels. Image signal. Here, the image signal size 40 is obtained by rotating the image signal output from the CCD 11 by 90 °. When horizontal enlargement is not performed in the reproduction process, the moving image size 41 is an image of 960 pixels in the horizontal direction, which is image information that exceeds the display image size 33 of the TV monitor. Here, considering that the image is displayed in the horizontal direction with respect to the display image size 33 of the TV monitor, the necessary moving image size 36 may be an image of 720 pixels on the side, and in this case Reduction processing is performed. For this reason, the horizontal resolution of the display image does not fall below the horizontal resolution of the TV monitor.

(Second Embodiment)
Next, a second embodiment of the present invention will be described.
About the schematic structure of the imaging device which concerns on 2nd Embodiment, it is what is shown in FIG. 1 similarly to the imaging device which concerns on 1st Embodiment.

  FIG. 8 is a schematic diagram illustrating driving in the first addition reading mode in the CCD 11 of the imaging apparatus according to the second embodiment. As shown in FIG. 8, pixels including photoelectric conversion elements 24 formed of photodiodes are arranged in a two-dimensional matrix in the CCD 11, and each photoelectric conversion element 24 has “G” and “B”. And “R” color filter is provided.

  The signal charge accumulated in the photoelectric conversion element 24 is read out to the vertical transfer path 21 by a read pulse input from the timing generation circuit 13. The signal charges read out to the vertical transfer path 21 are sequentially transferred by the vertical transfer pulse and sent to the horizontal transfer path 22. Further, the signal charges sent to the horizontal transfer path 22 are sequentially transferred to the output circuit 23 by the horizontal transfer pulse, converted into a voltage by the output circuit 23, and then output to the analog signal processing circuit 12.

  The CCD 11 shown in FIG. 8 has, for example, horizontal 2560 × vertical 1920 pixels. In the first addition readout mode, as indicated by an arrow in FIG. 8, an image signal in which the pixels positioned in the vertical direction and having the same color filter are added and read out by three pixels, and the vertical direction is compressed to 1/3. Is output. With this first addition readout mode, an image signal of 2560 × 640 pixels is output per frame.

FIG. 9 is a schematic diagram illustrating driving in the second addition reading mode in the CCD 11 of the imaging apparatus according to the second embodiment.
In the second addition readout mode, as indicated by an arrow in FIG. 9, an image signal in which the pixels located in the horizontal direction and having the same color filter are added and read out by three pixels, and the horizontal direction is compressed to 1/3. Is output. With this second addition readout mode, an image signal of horizontal 853 × vertical 1920 pixels is output per frame.

FIG. 10 is a flowchart illustrating a first processing example in the moving image shooting mode in the imaging apparatus according to the second embodiment.
When the photographer inputs the moving image shooting mode to the shooting mode input device 20 configured by a mode dial or the like, the CPU 18 shifts the shooting mode of the imaging device to the moving image shooting mode, and first, EVF image display processing is performed. Is performed (step S30).

  While continuing to display the EVF image, the CPU 18 determines whether or not a release button (not shown) is pressed and the release button is turned on (step S31). If the release button is not pressed and not turned on, the process waits in step S31. On the other hand, when the release button is pressed and turned on, the CPU 18 subsequently determines whether the posture of the camera is horizontal or vertical based on the posture signal sent from the posture detection device 19. (Step S32).

  If it is determined in step S32 that the camera posture is horizontal, then the CPU 18 controls the CCD 11 so that the CCD 11 is driven in the first addition reading mode (step S33). At this time, the CCD 11 may be controlled via the timing generation circuit 13.

  On the other hand, if it is determined in step S32 that the posture of the camera is vertical, then the CPU 18 controls the CCD 11 so that the CCD 11 is driven in the second addition reading mode (step S34). At this time, the CCD 11 may be controlled via the timing generation circuit 13.

  After the driving method of the CCD 11 based on the camera posture is selected or changed in step S33 or step S34, recording of a moving image is started (step S35).

FIG. 11 is a flowchart illustrating a second processing example in the moving image shooting mode in the imaging apparatus according to the second embodiment.
When the photographer inputs the moving image shooting mode to the shooting mode input device 20 configured by a mode dial or the like, the CPU 18 shifts the shooting mode of the imaging device to the moving image shooting mode, and first, EVF image display processing is performed. Is performed (step S40).

  Subsequently, the CPU 18 determines whether the attitude of the camera is horizontal or vertical based on the attitude signal sent from the attitude detection device 19 (step S41). If it is determined that the camera is in the horizontal position, then the CPU 18 controls the CCD 11 so that the CCD 11 is driven in the first addition reading mode (step S42). At this time, the CCD 11 may be controlled via the timing generation circuit 13.

  On the other hand, if it is determined in step S41 that the posture of the camera is vertical, the CPU 18 controls the CCD 11 so that the CCD 11 is driven in the second addition reading mode (step S43). At this time, the CCD 11 may be controlled via the timing generation circuit 13.

  After the processing of step S42 or step S43 is completed, the CPU 18 subsequently determines whether or not a release button (not shown) is pressed and the release button is turned on (step S44). If the release button is not pressed and not turned on, the process returns to step S41. On the other hand, when the release button is pressed and turned on, recording of a moving image is started (step S45).

  FIG. 12 is a schematic diagram illustrating processing when a moving image is reproduced on the TV monitor (display device 17) when the imaging device according to the second embodiment is photographed with the posture of the imaging device being landscape. . Here, the image signal size 50a is an image signal at the time of reading a still image when the camera is photographed horizontally, and is assumed to be, for example, an image signal of 2560 horizontal × 1920 vertical pixels.

  When the posture of the camera is horizontal during moving image shooting, the first addition readout mode is set. Therefore, the image signal size 51 read out in the first addition readout mode is 2560 × vertical 640 pixels. Image signal. Here, as the display image size 33 of the TV monitor, for example, since an image signal of 720 × 480 pixels can be displayed, the moving image size 52 is larger than the display image size 33 of the TV monitor. It is. Further, when the moving image size 52 is reduced, the moving image can be displayed in a full display image size 33 of the TV monitor. In this case, the horizontal resolution of the display image does not fall below the originally displayable horizontal resolution.

  FIG. 13 is a schematic diagram illustrating processing when a moving image is reproduced on the TV monitor (display device 17) when the posture of the imaging device is photographed vertically in the imaging device according to the second embodiment. . Here, the image signal size 50b is an image signal at the time of reading a still image when the posture of the camera is photographed vertically, and is assumed to be, for example, an image signal of 2560 horizontal × 1920 vertical pixels.

  When the posture of the camera is vertical during moving image shooting, the second addition readout mode is set, so the image signal size 60 read out in the second addition readout mode is 1920 × 853 pixels worth. It becomes an image signal. Here, the image signal size 60 is obtained by rotating the image signal output from the CCD 11 by 90 °. Since the moving image size 36 necessary for displaying the image in the horizontal direction full of the display image size 33 of the TV monitor is an image signal of 720 × 853 pixels, the image signal size 60 is the moving image size 61. It is converted into (an image of horizontal 720 × 853 vertical pixels). In this case, since it is not necessary to perform enlargement processing, the horizontal resolution of the display image does not fall below the horizontal resolution of the TV monitor.

  As described above, according to the embodiments of the present invention, the posture detection device 19 detects the posture of the imaging device at the time of moving image shooting, and the CPU 18 detects the posture of the imaging device detected by the posture detection device 19. Since the driving method in the CCD 11 is controlled, the CCD 11 can be driven by a driving method suitable for the posture of the imaging apparatus. This makes it possible to suppress a decrease in horizontal resolution in the display device even when playing back a moving image shot with the image pickup device held vertically.

  Each unit of FIG. 1 constituting the imaging apparatus according to the embodiment of the present invention described above, and each step of FIGS. 4, 5, 10 and 11 showing the control method of the imaging apparatus is performed by a RAM or a ROM of a computer. It can be realized by operating a program stored in the above. This program and a computer-readable storage medium storing the program are included in the present invention.

  Specifically, the program is recorded in a storage medium such as a CD-ROM, or provided to a computer via various transmission media. As a storage medium for recording the program, a flexible disk, a hard disk, a magnetic tape, a magneto-optical disk, a nonvolatile memory card, and the like can be used in addition to the CD-ROM. On the other hand, as the transmission medium of the program, a communication medium (wired line such as an optical fiber, etc.) in a computer network (LAN, WAN such as the Internet, wireless communication network, etc.) system for propagating and supplying program information as a carrier wave A wireless line or the like.

  In addition, the function of the imaging apparatus according to the embodiment of the present invention is realized by executing a program supplied by the computer, and an OS (operating system) or other application in which the program is running on the computer. When the functions of the imaging apparatus according to the embodiment of the present invention are realized in cooperation with software, all or part of the processing of the supplied program is performed by a function expansion board or function expansion unit of the computer Such a program is also included in the present invention when the functions of the imaging apparatus according to the embodiment of the present invention are realized.

1 is a block diagram illustrating a schematic configuration of an imaging apparatus according to a first embodiment. It is a schematic diagram which shows the drive of the 1st thinning-out reading mode in CCD of the imaging device which concerns on 1st Embodiment. It is a schematic diagram which shows the drive of the 2nd thinning-out reading mode in CCD of the imaging device which concerns on 1st Embodiment. 6 is a flowchart illustrating a first processing example in a moving image shooting mode in the imaging apparatus according to the first embodiment. 6 is a flowchart illustrating a second processing example in the moving image shooting mode in the imaging apparatus according to the first embodiment. It is a schematic diagram which shows the process at the time of reproducing | regenerating a moving image on the TV monitor (display apparatus) connected. In the imaging device concerning a 1st embodiment, it is a mimetic diagram showing processing at the time of reproducing a moving picture on a TV monitor (display device) when the posture of the imaging device is photographed vertically. It is a schematic diagram which shows the drive of the 1st addition reading mode in CCD of the imaging device which concerns on 2nd Embodiment. It is a schematic diagram which shows the drive of the 2nd addition reading mode in CCD of the imaging device which concerns on 2nd Embodiment. 12 is a flowchart illustrating a first processing example in a moving image shooting mode in the imaging apparatus according to the second embodiment. 14 is a flowchart illustrating a second processing example in the moving image shooting mode in the imaging apparatus according to the second embodiment. In the imaging device concerning a 2nd embodiment, when the posture of the imaging device is photoed horizontally, it is a mimetic diagram showing processing at the time of reproducing a moving picture on a TV monitor (display device). In the imaging device concerning a 2nd embodiment, it is a mimetic diagram showing processing at the time of reproducing a moving picture on a TV monitor (display device), when the posture of the imaging device is photographed vertically.

Explanation of symbols

10: Lens unit 11: CCD (solid-state imaging device)
12: Analog signal processing circuit 13: Timing generation circuit 14: A / D converter 15: Digital signal processing circuit 16: Recording medium 17: Display device 18: CPU
19: Attitude detection device 20: Shooting mode input device 21: Vertical transfer path 22: Horizontal transfer path 23: Output circuit 24: Photoelectric conversion element (photodiode)
30a, 30b: Image signal size at the time of still image reading 31: Horizontally long read signal size in the first decimation readout mode 32: Vertically long read signal size in the first decimation readout mode 33: Display image size on the TV monitor 34: Horizontal moving image size 35 in the first decimation readout mode: Vertical moving image size in the first decimation readout mode (part 1)
36: Vertically long moving image size in the first decimation readout mode (part 2)
40: Vertically long read signal size in the second decimation read mode 41: Moving image size 50a, 50b in the second decimation read mode 51: Image signal size during still image read 51: Read signal size in the first addition read mode 52: Moving image size in the first addition reading mode 60: Reading signal size in the second addition reading mode 61: Moving image size in the second addition reading mode

Claims (2)

A solid-state imaging device that converts a subject image into an electrical signal;
Posture detecting means for detecting the posture of the device itself and outputting a posture signal based on the detected posture;
A first addition reading mode for adding and reading out electrical signals of a certain number of pixels located in the vertical direction of the solid-state image sensor based on the posture signal and capturing a moving image; and a horizontal direction of the solid-state image sensor Control means for controlling to drive the solid-state imaging device in any one of a second addition reading mode for adding and reading out electrical signals of a certain number of pixels located in
An imaging device comprising: A method for controlling an imaging apparatus including a solid-state imaging device that converts a subject image into an electrical signal,
A posture detection step of detecting a posture of the imaging device and outputting a posture signal based on the detected posture;
A first addition reading mode for adding and reading out electrical signals of a certain number of pixels located in the vertical direction of the solid-state image sensor based on the posture signal and capturing a moving image; and a horizontal direction of the solid-state image sensor A control step for controlling to drive the solid-state imaging device in any one of a second addition reading mode in which electric signals of a certain number of pixels located in the pixel are added and read;
A method for controlling an imaging apparatus, comprising:

Images