JP2016040877A - Imaging apparatus and method for controlling imaging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To connect newly recorded moving image data to a recorded moving image file, even when the newly recorded moving image data is different from moving image data stored in the recorded moving image data file in resolution and an aspect ratio.SOLUTION: An imaging apparatus includes imaging means, setting means for setting the screen size of the moving image data to be recorded, generation means for generating first moving image data of the screen size set by the setting means by using the moving image data obtained by the imaging means, recording means for recording the moving image data in a recording medium as a moving image file, changing means for changing the screen size of the first moving image data generated by the generation means, and control means for controlling the recording means, so that the first moving image data obtained by the generation means is recorded in the recording medium as a first moving image file and the moving image data obtained by the imaging means is added to a second moving image file already recorded in the recording medium.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an imaging apparatus and an imaging apparatus control method.

  2. Description of the Related Art Conventionally, some imaging devices such as digital cameras can record not only still images but also moving images. In such a photographing apparatus, a new moving image file is created and recorded on a recording medium such as a memory card each time a moving image recording instruction is issued.

  A configuration has also been proposed in which a newly recorded moving image is added to an already recorded moving image file (Patent Document 1).

JP 2005-109658 A

However, the invention described in Patent Document 1 has a problem that is not taken into consideration when the newly recorded moving image and the moving image stored in the recorded moving image file have different resolutions and aspect ratios.
The present invention combines newly recorded video data with the recorded video file even when the resolution and aspect ratio of the video data newly recorded and the video data stored in the recorded video file are different. The purpose is to be able to.

  The imaging apparatus of the present invention uses an imaging unit, a setting unit that sets a screen size of moving image data to be recorded, and a screen size set by the setting unit using the moving image data obtained by the imaging unit. Generating means for generating one moving image data, recording means for recording moving image data as a moving image file on a recording medium, changing means for changing the screen size of the first moving image data generated by the generating means, The first moving image data obtained by the generating unit is recorded as a first moving image file on a recording medium, and the moving image data obtained by the imaging unit is recorded on the recording medium. Control means for controlling the recording means so as to be added to the file, the control means comprising a screen size of the moving picture data stored in the second moving picture file. If the screen size is different from the screen size set by the setting means, the screen size of the video data generated by the generation means is changed to a screen size corresponding to the screen size of the video data stored in the second video file. The changing unit is controlled to change, and the recording unit is controlled to add the second moving image data output from the changing unit to the second moving image file.

  According to the present invention, even when the resolution and aspect ratio setting at the time of moving image shooting are different, it is possible to connect these moving images and record them as one moving image file.

1 is an external view of an imaging apparatus according to an embodiment of the present invention. It is a block diagram explaining the structural example of the imaging device which concerns on embodiment of this invention. 3 is a flowchart illustrating an operation of the imaging apparatus according to the first embodiment. It is a figure which shows an example of the moving image data handled with the imaging device of embodiment. 10 is a flowchart illustrating an operation of the imaging apparatus according to the second embodiment. 10 is a flowchart illustrating an operation of the imaging apparatus according to the third embodiment. 14 is a flowchart illustrating an operation of the imaging apparatus according to the fourth embodiment. 10 is a flowchart illustrating an operation of an imaging apparatus according to a fifth embodiment. 14 is a flowchart illustrating an operation of an imaging apparatus according to a sixth embodiment.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1A shows an external view of an imaging apparatus in which the present invention can be implemented. The display unit 13 is a display unit that displays images and various types of information. The connector 112 is a connector that connects the connection cable and the imaging device 10.

  The operation unit 14 is an operation unit including operation members such as various switches, buttons, and a touch panel that receive various operations from the user. The recording medium 20 is a recording medium such as a memory card or a hard disk. The recording medium slot 201 is a slot for storing the recording medium 20. The recording medium 20 stored in the recording medium slot 201 can communicate with the imaging device 10. A lid 203 is a lid of the recording medium slot 201.

  FIG. 1B is a block diagram illustrating a configuration example of an imaging apparatus 10 in which the present invention can be implemented. As shown in the figure, the imaging device 10 includes a CPU (Central Processing Unit) 11, a ROM 12, a display unit 13, an operation unit 14, a DRAM 15, a recording medium I / F 16, an imaging unit 17, and an image processing circuit connected via an internal bus 30. 18. An image compression / decompression circuit 19 is provided.

  Reference numeral 11 denotes a CPU for controlling each processing unit and data flow to be described later. A ROM 12 stores a program (firmware) related to the processing procedure of the CPU 11 and various information.

Reference numeral 13 denotes a display unit composed of a color liquid crystal display or the like, which is used for reproducing and displaying an image or displaying a graphic user interface. The display unit 13 also includes a terminal for outputting a video signal to an external display device such as a TV.
Reference numeral 14 denotes an input unit for receiving instructions from the user, such as various buttons such as a release button and a moving image button, a cross key, a control wheel, a dial switch, and the like.

A DRAM 15 is used as a work area of the CPU 11 and has a buffer function for temporarily storing image data, display data, data after image compression, and the like.
Normally, data is written to and read from the DRAM via a memory controller, but this is not shown here. Although not shown, a DMA controller is provided between each processing unit and the DRAM 15 for performing DMA transfer without using Read / Write with the CPU.

  Reference numeral 16 denotes a recording medium interface for writing / reading image data to / from a recording medium such as a CF (Compact Flash) card or an SD (Secure Digital) card. Reference numeral 20 denotes a removable recording medium such as the CF card or SD card described above. The type of recording medium used is not limited as long as it is a randomly accessible recording medium. For example, an optical disk (DVD) or a hard disk may be used.

Reference numeral 17 denotes an imaging unit that includes a lens, an aperture, a shutter, an imaging element such as a CCD sensor or a CMOS sensor, and images a subject.
18 performs image processing on the image data input from the imaging unit to generate YUV data, or resizes YUV data before being compressed by an image compression / decompression circuit described later or the decompressed YUV data to an arbitrary size; An image processing circuit that performs rotation and color conversion.

  Further, the image processing circuit 18 can detect the face of the subject from the image data, calculate a motion vector from the difference between the two images, and can detect the motion of the subject from the information. It is. Furthermore, it is possible to calculate a luminance or color histogram from image data and detect a scene change from a change in the distribution.

  19 shows YUV data as JPEG or H.264. H.264 format image data, JPEG or H.264 format. This is an image compression / decompression circuit that decompresses H.264 compressed image data into YUV data.

  The CPU 11, ROM 12, display unit 13, operation unit 14, DRAM 15, recording medium I / F 16, imaging unit 17, image processing circuit 18, and image compression / decompression circuit 19 communicate via an internal bus 30.

[First Embodiment]
Hereinafter, the operation of the imaging apparatus 10 according to the present embodiment will be described using the flowchart of FIG. 2 and the example of the moving image data of FIG.
The imaging apparatus 10 according to the present embodiment records still image data of one screen on the recording medium 20 in response to a still image recording instruction. In addition, an image signal is generated in response to an instruction to start recording a moving image, recording of moving image data on the recording medium 20 is started, and recording of moving image data is stopped in response to an instruction to stop recording the moving image. In addition to such normal still image and moving image recording processing, the imaging apparatus 10 includes a digest moving image recording mode (hereinafter, digest mode).

  That is, in the digest mode, the moving image for the predetermined time (for example, 4 seconds) immediately before is kept in the recording standby state. When a still image recording instruction is issued, a moving image for a predetermined time immediately before the still image recording instruction is recorded together with the still image.

  At this time, the moving image data recorded in the digest mode is added and recorded in one moving image file (digest moving image file) each time. In the digest mode, when there is an instruction to record a moving image, normal moving image data (hereinafter referred to as a main movie) is recorded in accordance with the instruction to start recording the moving image. Further, separately from the main movie, this main movie is added to the digest movie file and recorded.

  FIG. 2 shows a flowchart of the operation. The CPU 11 has a function of controlling processing during recording of still images and moving images, and the CPU 11 controls each unit so as to realize the operation shown in FIG.

  When the photographing mode is set by operating the mode dial of the operation unit 14, the flow shown in FIG. 2 starts. In step S <b> 201, the CPU 11 starts capturing a moving image frame for a digest moving image using the imaging unit 17. In S <b> 202, the CPU 11 uses the image processing circuit 18 to generate electronic finder display data for live view display on the display unit 13, and writes it in the DRAM 15. Here, pixel interpolation processing, color conversion processing, resizing processing to a display size, and the like are performed using the image processing circuit 18. In S203, the CPU 11 generates digest video compression data from the video frames for the digest video captured in S201 by using the image processing circuit 18 in the same manner as in S202, and writes the digest video data to the DRAM 15. In S <b> 204, the CPU 11 compresses the digest video compression data in the MPEG or Motion JPEG format using the image compression / decompression circuit 19. In S205, the CPU 11 stores the moving image data compressed in S204 in the moving image buffer area on the DRAM 15.

  With the generation of the display image data, the CPU 11 causes the display unit 13 to display the display image data in S206. That is, the live view display image on the display unit 13 is updated. In S <b> 207, the CPU 11 determines whether or not the release switch of the operation unit 14 is fully pressed (SW <b> 2), that is, whether or not a still image is instructed. If it is determined in S207 that there is an instruction to record a still image, in S208, the CPU 11 stops the buffering of the digest moving image, and the imaging unit 17 captures a still image frame. In step S209, the CPU 11 uses the image compression / decompression circuit 19 to compress the still image frame image data captured in step S208 as it is in the JPEG format. In S <b> 210, the CPU 11 records the obtained still image file on the recording medium 20 via the recording medium interface 16.

  In S <b> 211, the CPU 11 determines whether there is a digest movie file that can be additionally recorded on the recording medium 20. If there is a digest movie file that can be additionally recorded, the CPU 11 appends the compressed movie data of the digest movie temporarily stored in the movie buffer area on the DRAM 15 to the digest movie file on the recording medium 20 in S212. Then, the still image and moving image shooting process ends.

  If there is no digest video file that can be additionally written, the CPU 11 generates a new video file for recording the compressed video data temporarily stored in the video buffer area on the DRAM 15 in S213. Then, the CPU 11 records the moving image file on the recording medium 20 via the recording medium interface 16 and ends the still image and moving image shooting process.

When it is determined in S207 that there is no still image recording instruction, in S214, the CPU 11 determines whether or not there is an instruction to press the moving image button of the operation unit 14, that is, to start recording a moving image.
If it is determined in S214 that there is no instruction to start recording a moving image, the CPU 11 returns to S201 and continues processing the next moving image frame. If it is determined in S214 that there is an instruction to start moving image recording, in S215, the CPU 11 stops the buffering of the digest moving image and starts capturing moving image frames for the main moving image by the imaging unit 17. The image data captured in S2115 is stored in the DRAM 15.

  In S <b> 216, the CPU 11 uses the image processing circuit 18 to generate electronic finder display data for live view display on the display unit 13 and writes the data in the DRAM 15. Here, using the image processing circuit 18, pixel interpolation processing, color conversion processing, resizing processing (image size changing processing) in accordance with the display image size, and the like are performed.

  Along with the generation of the display image data, the CPU 11 causes the display unit 13 to display the display image data in S217. That is, the live view display image on the display unit 13 is updated. In step S218, the CPU 11 uses the image processing circuit 18 in the same manner as in step S216 to generate main movie compression data from the main movie movie frame captured in step S215, and writes the generated data to the DRAM 15. In S 219, the CPU 11 compresses the main video compression data in the MPEG or Motion JPEG format using the image compression / decompression circuit 19. In S <b> 220, the CPU 11 generates a new moving image file through the recording medium interface 16 and records the moving image data compressed in S <b> 219 on the recording medium 20.

  In S221, the CPU 11 determines whether or not the aspect ratio of the recording size of the main movie and the aspect ratio of the recording size of the digest movie are the same. The screen size of the main video and the screen size of the digest video are determined at the start of the shooting mode, but can be set by the user operating the operation unit 14, respectively.

  If the aspect ratio of the recording size of the main movie and the aspect ratio of the recording size of the digest movie are the same in the determination in S221, the CPU 11 further determines that the recording size of the main movie and the screen size (number of pixels) of the digest movie are the same in S222. Determine if it exists.

  If it is determined in S222 that the screen size of the main video is the same as the screen size of the digest video, the main video compression data generated in S218 is directly used as digest video compression data, and the process proceeds to S229. If the recording size of the main movie is different from the recording size of the digest movie in the determination in S222, the process proceeds to S224.

  In S224, the CPU 11 controls the image processing circuit 18, changes the screen size of the image data captured in S215 to the digest movie recording size, generates digest movie compression data, and writes it to the DRAM 15. If the aspect ratio of the recording size of the main movie differs from the aspect ratio of the recording size of the digest movie in the determination of S221, the CPU 11 further determines that the aspect ratio of the main movie is longer than the aspect ratio of the digest movie in S223. Determine whether or not. That is, it is determined whether (horizontal size of main movie / vertical size of main movie)> (horizontal size of digest movie / vertical size of digest movie). If it is determined in S223 that the aspect ratio of the main video is wider than the aspect ratio of the digest video, the process proceeds to S225 and S226.

  In S225 and S226, the CPU 11 controls the image processing circuit 18 so that the screen size of the image data captured in S215 is the same as the horizontal size of the digest video. Subsequently, in S226, the CPU 11 uses the image processing circuit 18 to synthesize a predetermined image indicating a margin such as a black image above and below the image generated in S225 so as to be the same as the screen size of the digest video. Perform image composition processing.

  If it is determined in S223 that the aspect ratio of the main video is not horizontally longer than the aspect ratio of the digest video, the process proceeds to S227 and S228. In S227 and S228, as in S225 and S226, the CPU 11 controls the image processing circuit 18 to change the screen size of the image data captured in S215 to be the same as the vertical recording size of the digest moving image. Subsequently, in S228, the CPU 11 uses the image processing circuit 18 to synthesize a predetermined image indicating a margin such as a black image on the left and right of the image generated in S227 so as to be the same as the screen size of the digest video. Perform image composition processing.

  As an example, the case where the screen size of the main video is full HD (horizontal 1920 pixels × vertical 1080 pixels) and the screen size of the digest video is VGA (horizontal 640 × vertical 480) will be described with reference to FIG. In this case, since the main video is longer than the digest video, in S225, the main video data (301) having a size of 1920 × 1080 is changed to 640 × 360 so as to be the same as the horizontal size 640 of the digest video. Resize.

  Subsequently, in S226, a predetermined margin image (such as a 640 × 60 black image) is displayed above and below the resized 640 × 360 image data (302) so that the screen size of the digest video is 640 × 480. 303). Then, digest video data is generated (304). In this way, image resizing processing for resizing the image data can be performed, and the main movie (305) and the digest movie (306) can be recorded.

  In S <b> 229, the CPU 11 compresses the digest moving image compression data in the MPEG or Motion JPEG format using the image compression / decompression circuit 19. In S230, the CPU 11 determines whether there is a digest movie file that can be additionally recorded on the recording medium 20. If there is a digest video file that can be additionally recorded, in S231, the CPU 11 adds the video data compressed in S229 to a specific digest video file on the recording medium 20 via the recording medium interface 16. If there is no digest video file that can be additionally recorded, in S232, the CPU 11 generates a new video file through the recording medium interface 16 and records the video data compressed in S229 on the recording medium 20.

  In S233, the CPU 11 determines whether or not the moving image button of the operation unit 14 is pressed, that is, whether or not there is a moving image recording stop instruction. If it is determined that there is no moving image recording stop instruction, the CPU 11 returns to S215 and continues the processing of the next moving image frame. If it is determined that there is a moving image recording stop instruction, the CPU 11 ends the moving image recording process.

  As described above, it is possible to add a digest video that has already been recorded by synthesizing and recording a video with different resolution as a digest version and recording an image that shows resizing and margins as needed. .

  By doing so, it is possible to link the moving image in the composition determination stage immediately before the still image shooting and the moving image of the digest version at the time of moving image shooting, and leave it as a digest moving image for a certain period in one file. As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary.

[Second Embodiment]
Hereinafter, the operation of the imaging apparatus 10 in an embodiment different from the first embodiment will be described using the flowchart of FIG. The imaging device 10 can simultaneously record a moving image for a predetermined time at the composition determination stage immediately before shooting together with the still image at the time of shooting the still image. In addition, when recording a moving image, the main moving image can be recorded, and compressed data for moving images having different resolutions can be simultaneously stored as a digest version. Then, the video obtained by compressing the compressed video data of the digest version at the time of video shooting and the video at the composition determination stage immediately before the still image shooting are connected and recorded as a digest video for a certain period in one file. be able to. FIG. 4 shows a flowchart of the operation. The CPU 11 has functions of still image and moving image shooting control, and the CPU 11 controls each unit so as to realize the operation shown in FIG.

  When the shooting mode is set by operating the mode dial of the operation unit 14, the flow shown in FIG. 4 starts. Since S401 to S428 are the same processes as S201 to S228 in the first embodiment, a description thereof will be omitted. In S429, the CPU 11 stores the digest video compression data in the DRAM 15 so that it can be compressed later using the image compression / expansion circuit 19. In S430, the CPU 11 determines whether or not the moving image button of the operation unit 14 is pressed, that is, whether or not there is a moving image recording stop instruction.

  If it is determined in S430 that there is no moving image recording stop instruction, the CPU 11 returns to S415 and continues the processing of the next moving image frame. If it is determined in S430 that there is an instruction to stop moving image recording, the CPU 11 ends the recording of the main moving image and proceeds to S431. In S431, the CPU 11 uses the image compression / decompression circuit 19 to compress the digest video compression data stored in the DRAM 15 in MPEG or Motion JPEG format in S429. In step S <b> 432, the CPU 11 determines whether there is a digest movie file that can be added to the recording medium 20. If there is a digest video file that can be additionally recorded, in S433, the CPU 11 adds the video data compressed in S431 to the digest video file on the recording medium 20 via the recording medium interface 16, and still images and videos. The shooting process ends.

  If there is no digest video file that can be additionally recorded, in S434, the CPU 11 generates a new video file via the recording medium interface 16 and records the video data compressed in S431 on the recording medium 20, The movie shooting process ends.

  As described above, the main moving image is recorded, and at the same time, a moving image having a different resolution is synthesized as an image for digest version compression, and an image showing a resize and a margin is synthesized and stored in the DRAM. Then, it can be compressed after the main video recording and added to the already recorded digest video. In this way, when there is no time to perform compression processing other than the compression processing of the main movie within one frame period, or when the compression circuit cannot be used simultaneously in the main movie compression processing and the digest movie compression processing. Can also respond.

[Third Embodiment]
Hereinafter, the operation of the imaging apparatus 10 according to another embodiment will be described with reference to the flowchart of FIG. The imaging device 10 can simultaneously record a moving image for a predetermined time at the composition determination stage immediately before shooting together with the still image at the time of shooting the still image. In addition, at the time of moving image shooting, a moving image having a different resolution for a predetermined time from the start of recording of the main moving image can be recorded together with the main moving image as a digest version. Then, it is possible to concatenate a moving image in the composition determination stage immediately before the still image shooting and a part of the digest version moving image during the main moving image shooting period, and to record the digest moving image in one file as a certain period. FIG. 5 shows a flowchart of the operation. The CPU 11 has functions of still image and moving image shooting control, and the CPU 11 controls each unit so as to realize the operation shown in FIG.

  When the photographing mode is set by operating the mode dial of the operation unit 14, the flow shown in FIG. 5 starts. Since S501 to S520 are the same processes as S201 to S220 in the first embodiment, description thereof will be omitted. In S521, the CPU 11 determines whether or not a predetermined time has elapsed since the start of the main video recording.

  If it is determined in S521 that a predetermined time has elapsed since the start of the main video recording, the CPU 11 skips the process of generating and recording the digest video, proceeds to S534, and ends the processing of the current video frame. In this way, by recording the digest video from the start of the main video recording until the predetermined time elapses, it is possible to record only a part of the digest video during the main video recording period.

  If it is determined in S521 that the predetermined time has not elapsed since the start of the main video recording, the CPU 11 proceeds to S522, and generates and records a digest video. S522 to S533 are processes for generating and recording a digest video, but since they are the same processes as S221 to S232 in the first embodiment, a description thereof will be omitted.

  In S534, the CPU 11 determines whether or not the moving image button on the operation unit 14 is pressed, that is, whether or not there is a moving image recording stop instruction. If it is determined in S534 that there is no moving image recording stop instruction, the CPU 11 returns to S515 and continues the processing of the next moving image frame. When it is determined in S534 that there is an instruction to stop moving image recording, the CPU 11 ends the still image and moving image shooting process.

  As described above, at the same time as recording the main moving image, moving images having different resolutions for a predetermined time from the start of shooting of the main moving image are synthesized and recorded as a digest version, as necessary, with images showing resizing and margins. As a result, it is possible to add to a digest video that has already been recorded. By doing so, it is possible to link the moving image in the composition determination stage immediately before the still image shooting and the moving image of the digest version at the time of moving image shooting, and leave it as a digest moving image for a certain period in one file.

  Here, an example of recording a digest video for a predetermined time from the start of the main video recording has been described. However, as in the second embodiment, moving images having different resolutions as images for digest version compression are combined with images indicating resizing and margins as necessary and stored in the DRAM. It is also possible to leave a predetermined amount of time immediately before the recording stop by compressing and recording after the main video recording.

[Fourth Embodiment]
Hereinafter, the operation of the imaging apparatus 10 according to another embodiment will be described with reference to the flowchart of FIG.
The imaging device 10 can simultaneously record a moving image for a predetermined time at the composition determination stage immediately before shooting together with the still image at the time of shooting the still image. In addition, at the time of moving image shooting, a moving image with different resolutions for a predetermined time during the main moving image shooting period can be recorded simultaneously with the main moving image as a digest version every predetermined time.

  Then, the composition-determined stage movie immediately before still image shooting and the digest version movie recorded every predetermined time during the main movie shooting period can be linked and recorded as a digest movie for a certain period in one file. . FIG. 6 shows a flowchart of the operation. The CPU 11 has functions of still image and moving image shooting control, and the CPU 11 controls each unit so as to realize the operation shown in FIG.

  When the photographing mode is set by operating the mode dial of the operation unit 14, the flow shown in FIG. 6 starts. Since S601 to S620 are the same processes as S201 to S220 in the first embodiment, description thereof will be omitted. In step S621, the CPU 11 determines whether a digest moving image is being recorded. When it is determined in S621 that the digest movie recording is in progress, in S622, the CPU 11 determines whether or not a predetermined time has elapsed since the start of the current digest movie recording. If it is determined in S622 that a predetermined time has elapsed since the start of the current digest video recording, the CPU 11 skips the process of generating and recording the digest video, proceeds to S636, and ends the processing of the current video frame.

  If it is determined in S621 that the digest movie recording is not in progress, in S623, the CPU 11 determines whether or not a predetermined time has elapsed since the previous digest movie recording stop. If it is determined in S623 that a predetermined time has not elapsed since the previous digest video recording stop, the CPU 11 skips the process of generating and recording the digest video, proceeds to S636, and ends the processing of the current video frame.

  If it is determined in S622 that the predetermined time has not elapsed since the start of the current digest video recording, and if it is determined in S623 that the predetermined time has elapsed since the previous stop of the digest video recording, the CPU 11 proceeds to S624. . S624 to S635 are processes for generating and recording a digest video, but since they are the same processes as S221 to S232 in the first embodiment, a description thereof will be omitted.

  In S636, the CPU 11 determines whether or not the moving image button of the operation unit 14 is pressed, that is, whether or not there is a moving image recording stop instruction. If it is determined in S636 that there is no moving image recording stop instruction, the CPU 11 returns to S615 and continues the processing of the next moving image frame. If it is determined in S636 that there is an instruction to stop moving image recording, the CPU 11 ends the still image and moving image shooting process.

  As described above, the main movie is recorded, and at the same time, a video with different resolutions for a predetermined time is synthesized and recorded as a digest version at predetermined intervals during the main movie recording period. To do. As a result, it is possible to add to a digest video that has already been recorded. By doing so, it is possible to link the moving image in the composition determination stage immediately before the still image shooting and the moving image of the digest version at the time of moving image shooting, and leave it as a digest moving image for a certain period in one file.

[Fifth Embodiment]
Hereinafter, the operation of the imaging apparatus 10 according to another embodiment will be described with reference to the flowchart of FIG. The imaging device 10 can simultaneously record a moving image for a predetermined time at the composition determination stage immediately before shooting together with the still image at the time of shooting the still image. In addition, at the time of moving image shooting, a moving image with different resolutions of scenes in which the subject moves during the main moving image shooting period can be recorded together with the main movie as a digest version. Then, the movie of the composition determination stage just before the still image shooting and the digest version of the movie in which the subject is moving during the main movie shooting period are linked and recorded as a digest movie of a certain period in one file. Can do. FIG. 7 shows a flowchart of the operation. The CPU 11 has functions of still image and moving image shooting control, and the CPU 11 controls each unit so as to realize the operation shown in FIG.

  When the photographing mode is set by operating the mode dial of the operation unit 14, the flow shown in FIG. 7 starts. Since S701 to S720 are the same processes as S201 to S220 in the first embodiment, description thereof will be omitted. In S721, the CPU 11 performs a motion detection process for determining whether or not the subject is moving. Whether or not the subject is moving is determined by using the image processing circuit 18 to detect the face of the subject from the image data and determining the change in the position, or by calculating a motion vector from the difference between the two images. To do.

  If it is determined in S721 that the subject is not moving, the CPU 11 skips the process of generating and recording the digest video, proceeds to S734, and ends the processing of the current video frame. By recording the digest video only when the subject is moving as described above, it is possible to record only the moving scene during the main video shooting period as the digest video.

  If it is determined in S721 that the subject is moving, the CPU 11 proceeds to S722 to generate and record a digest video. S522 to S533 are processes for generating and recording a digest video, but since they are the same processes as S221 to S232 in the first embodiment, a description thereof will be omitted.

  In S734, the CPU 11 determines whether or not the moving image button of the operation unit 14 is pressed, that is, whether or not there is a moving image recording stop instruction. If it is determined in S734 that there is no moving image recording stop instruction, the CPU 11 returns to S715 and continues the processing of the next moving image frame. If it is determined in S734 that there is an instruction to stop moving image recording, the CPU 11 ends the still image and moving image shooting process.

  As described above, at the same time that the main video is recorded, a video with different resolution of the scene where the subject is moving during the main video recording period is combined and recorded as necessary. To do. As a result, it is possible to add to a digest video that has already been recorded. By doing so, it is possible to link the moving image in the composition determination stage immediately before the still image shooting and the moving image of the digest version at the time of moving image shooting, and leave it as a digest moving image for a certain period in one file.

[Sixth Embodiment]
Hereinafter, the operation of the imaging apparatus 10 according to another embodiment will be described with reference to the flowchart of FIG. The imaging device 10 can simultaneously record a moving image for a predetermined time at the composition determination stage immediately before shooting together with the still image at the time of shooting the still image. Also, at the time of moving image shooting, a moving image having a different resolution for a predetermined time from the switching of the scene during the main moving image shooting period can be simultaneously recorded as a digest version together with the main moving image.

  Then, the video of the composition determination stage just before the still image shooting and the digest version of the video recorded for the predetermined time from the scene change during the main video shooting period are connected and recorded as a digest video of a certain period in one file can do. FIG. 8 shows a flowchart of the operation. The CPU 11 has functions of still image and moving image shooting control, and the CPU 11 controls each unit so as to realize the operation shown in FIG.

  When the photographing mode is set by the operation of the mode dial of the operation unit 14, the flow shown in FIG. 8 starts. Since steps S801 to S820 are the same as steps S201 to S220 in the first embodiment, a description thereof will be omitted.

  In step S821, the CPU 11 determines whether a digest moving image is being recorded. If it is determined in S821 that the digest moving image is being recorded, the CPU 11 proceeds to S823. If it is determined in S821 that the digest moving image is not being recorded, in S822, the CPU 11 performs a scene determination process for determining whether or not a shooting scene has been switched.

  The switching of the shooting scene is performed by calculating a luminance or color histogram from the image data using the image processing circuit 18 and discriminating from the change in the distribution, or by the zoom operation of the operation unit 14 by the zoom operation, the shooting angle of view changes greatly. It is determined from what has been done.

  If it is determined in S822 that there is no switching of the shooting scene, the CPU 11 skips the process of generating and recording the digest video, proceeds to S836, and ends the processing of the current video frame. If it is determined in S822 that there is a change in the shooting scene, the CPU 11 proceeds to S823.

  In S823, the CPU 11 determines whether or not a predetermined time has elapsed since the start of the current digest video recording. If it is determined in S823 that a predetermined time has elapsed since the start of the current digest video recording, the CPU 11 skips the process of generating and recording the digest video, proceeds to S836, and ends the processing of the current video frame.

  If it is determined in S823 that the predetermined time has not elapsed since the start of the current digest video recording, the CPU 11 advances to S824. S824 to S835 are processes for generating and recording a digest video, but since they are the same processes as S221 to S232 in the first embodiment, description thereof will be omitted.

  In this way, by recording a digest video for a predetermined time from when the shooting scene is switched, a part of each shooting scene during the main video shooting period can be recorded as a digest video.

  In S836, the CPU 11 determines whether or not the moving image button on the operation unit 14 is pressed, that is, whether or not there is a moving image recording stop instruction. If it is determined in S836 that there is no moving image recording stop instruction, the CPU 11 returns to S815 and continues the processing of the next moving image frame. If it is determined in S836 that there is an instruction to stop moving image recording, the CPU 11 ends the still image and moving image shooting process.

  As described above, the main movie is recorded, and at the same time, a digest version of the movie with a part of the resolution of each shooting scene during the main movie recording period is combined and recorded with images showing resizing and margins as necessary. To do. As a result, it is possible to add to a digest video that has already been recorded. By doing so, it is possible to link the moving image in the composition determination stage immediately before the still image shooting and the moving image of the digest version at the time of moving image shooting, and leave it as a digest moving image for a certain period in one file.

(Other embodiments)
The present invention supplies a program for realizing one or more functions of the above-described embodiments to a system or apparatus via a network or a computer-readable storage medium, and one or more processors in the computer of the system or apparatus are provided. It can also be realized by a process of reading and executing a program. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

10 Imaging Device 11 CPU (Central Processing Unit)
12 ROM
13 Display unit 14 Operation unit 15 DRAM
16 Recording medium I / F
17 Imaging unit 18 Image processing circuit 19 Image compression / decompression circuit 20 Recording medium 30 Internal bus

Claims (6)

Imaging means;
Setting means for setting the screen size of the recorded video data;
Generating means for generating first moving image data having a screen size set by the setting means, using moving image data obtained by the imaging means;
Recording means for recording moving image data as a moving image file on a recording medium;
Changing means for changing a screen size of the first moving image data generated by the generating means;
The first moving image data obtained by the generating unit is recorded on a recording medium as a first moving image file, and the moving image data obtained by the imaging unit is already recorded on the recording medium. Control means for controlling the recording means to be added to the video file,
When the screen size of the moving image data stored in the second moving image file is different from the screen size set by the setting unit, the control unit determines the screen size of the moving image data generated by the generating unit. And controlling the changing means to change the screen size to the screen size corresponding to the screen size of the moving image data stored in the second moving image file, and converting the second moving image data output from the changing means to the second moving image file. An image pickup apparatus for controlling the recording means to be added to the image pickup apparatus.   The control means adds the first video data to the second video file when the screen size of the video data stored in the second video file is the same as the screen size set by the setting means. The image pickup apparatus according to claim 1, wherein the recording unit is controlled to perform recording. A storage means for storing the second moving image data output from the changing means;
The recording unit is configured to record the second moving image data stored by the storage unit in addition to the second moving image file after the recording of the first moving image data is stopped. The imaging apparatus according to claim 1, wherein the imaging apparatus is controlled. Imaging process;
A setting process for setting the screen size of the recorded video data;
Using the moving image data obtained by the imaging step, a generating step for generating first moving image data having a screen size set by the setting step;
A recording process for recording moving image data as a moving image file on a recording medium;
A changing step of changing a screen size of the first moving image data generated by the generating step;
The first moving image data obtained by the generating step is recorded on a recording medium as a first moving image file, and the moving image data obtained by the imaging step is already recorded on the recording medium. A control process for controlling the recording process to be added to the video file,
When the screen size of the moving image data stored in the second moving image file is different from the screen size set by the setting step, the control step sets the screen size of the moving image data generated by the generating step to the first size. The change process is controlled to change to a screen size corresponding to the screen size of the moving picture data stored in the second moving picture file, and the second moving picture data output from the changing process is changed to the second moving picture file. An image pickup apparatus control method, wherein the recording step is controlled to be added to the image pickup apparatus. Imaging process;
A setting process for setting the screen size of the recorded video data;
Using the moving image data obtained by the imaging step, a generating step for generating first moving image data having a screen size set by the setting step;
A recording process for recording moving image data as a moving image file on a recording medium;
A changing step of changing a screen size of the first moving image data generated by the generating step;
The first moving image data obtained by the generating step is recorded on a recording medium as a first moving image file, and the moving image data obtained by the imaging step is already recorded on the recording medium. And causing the computer to execute a control step for controlling the recording step to be added to the video file,
When the screen size of the moving image data stored in the second moving image file is different from the screen size set by the setting step, the control step sets the screen size of the moving image data generated by the generating step to the first size. The change process is controlled to change to a screen size corresponding to the screen size of the moving picture data stored in the second moving picture file, and the second moving picture data output from the changing process is changed to the second moving picture file. A program for controlling a computer to control the recording step to be added to the program.   A computer-readable storage medium storing the program according to claim 5.

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