JP2009112035A - Moving image reproducing unit and program thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a moving image reproducing unit capable of enabling the content of each moving image to be understood clearly, and to provide a program for the moving image reproducing unit. <P>SOLUTION: When a user selects an optional moving image in the reproduction of moving images, a first display area A and second to fourth areas B-D smaller than the first display area A are secured in a preview display area P on a display screen. In the first display area A, a representative image, which comprises still image in the top frame Frm1 of an aimed moving image, is displayed. In the second to fourth display areas B-D, a subrepresentative image, which comprises still images of every 150 frames of the aimed moving image, is displayed. A plurality of subrepresentative images displayed in the second to fourth display areas B-D are sequentially switched to still images of every succeeding 150 frames. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a moving image playback apparatus and a program thereof.

  2. Description of the Related Art Conventionally, in various video playback devices including a digital camera capable of shooting a video, for example, a system capable of browsing a plurality of video data recorded on a memory card or the like, a so-called preview image (index image) representing each video data ) Was displayed as a list, giving users an overview of individual video data. As the preview image, a still image of the first frame of the moving image data or a still image of a frame convenient for showing an outline of the moving image data has been used.

On the other hand, as a method for making it easier to understand the outline of moving image data, for example, in Patent Document 1 below, a plurality of thumbnails are created for one moving image data, and a plurality of sheets for one moving image data are created. A method for displaying thumbnails by frame advance is described. It is described that the plurality of thumbnails are the still images of the frames extracted periodically and the still images of the frames immediately after the scene change. Also, in Patent Document 2 below, by displaying moving image data in a stream or frame-by-frame display, the user can specify a plurality of frames to be thumbnailed from the moving image data, and a still image of the specified frame. Is recorded in association with moving image data, and when any moving image data is designated by the user from a list display of representative images, a method of displaying a plurality of corresponding still images as thumbnails (list display) is described. .
Japanese Patent Laid-Open No. 11-284948 (5th page, FIG. 3) JP 2000-324388 A (5th page, FIG. 8)

  The present invention provides a moving image playback apparatus that enables a user to clearly understand the contents of individual moving images when a user selects an arbitrary moving image, for example, during moving image playback, by a method different from the conventional method described above. And to provide the program.

  In order to solve the above-mentioned problem, according to the first aspect of the present invention, there is provided a moving image reproducing apparatus for reproducing a moving image recorded as moving image data on a recording medium and displaying the moving image on a display unit. A main representative image composed of images and a plurality of sub representative images each composed of still images of a plurality of frames in the moving image, wherein the size of the main representative image is larger than the size of the sub representative image, and the display means Display control means for displaying together.

  In such a configuration, it is possible to allow the user to grasp the contents in the middle of the moving image by using a large main representative image that is a still image of a frame in the moving image and a plurality of sub representative images smaller than the large main representative image.

  In the invention of claim 2, the image processing apparatus further comprises acquisition means for acquiring still image data of the main representative image and the plurality of sub representative images from the moving image data recorded on the recording medium, The display control means displays the main representative image and the plurality of sub-representative images on the display means based on the acquired still image data every time still image data is acquired by the acquisition means.

  In such a configuration, more sub-representative images can be efficiently displayed.

  According to a third aspect of the present invention, an acquisition means for acquiring still image data of the main representative image and the plurality of sub representative images from the moving image data recorded on the recording medium, and the acquisition Control means for causing the still image data acquired by the means to accompany the moving image data to be recorded on the recording medium, and wherein the display control means is recorded on the recording medium accompanying the moving image data. The main representative image and the plurality of sub representative images are displayed together on the display unit based on the still image data.

  In such a configuration, the main representative image and the plurality of sub representative images can be displayed immediately.

  In the invention according to claim 4, the display control means simultaneously displays each of the plurality of sub representative images in a plurality of display areas in the display means.

  In such a configuration, the user can immediately grasp the contents in the middle of the moving image.

  Further, in the invention of claim 5, the switching means for switching each of the plurality of sub representative images that the display control means simultaneously displays in the plurality of display areas in the order corresponding to the frame number corresponding to each sub representative image. Was provided.

  In such a configuration, it is possible to make the user grasp more contents in the middle of the moving image with time.

  According to a sixth aspect of the present invention, a computer included in a moving image reproducing apparatus for displaying a moving image recorded as moving image data on a recording medium on a display unit is composed of a still image of a predetermined frame in the moving image. The main representative image and a plurality of sub representative images each consisting of still images of a plurality of frames in the moving image are displayed together on the display unit with the main representative image being larger than the sub representative image. This is a program for functioning as display control means.

  According to a seventh aspect of the present invention, in a moving image reproducing apparatus for reproducing a moving image recorded as moving image data on a recording medium and displaying the moving image on a display means, the moving image to be reproduced is recorded on the recording medium. Display control means for displaying on the display means a preview image including a display area in which still images of a plurality of frames in the moving image are arranged in order according to the frame number; and the display control means displays the preview image on the display area. And switching means for sequentially switching a plurality of still images to the still images of the subsequent frame numbers while sequentially switching the update targets.

  In such a configuration, it is possible to make the user grasp more contents in the middle of the moving image with time.

  According to the invention of claim 8, when a moving image to be reproduced is selected, a computer included in a moving image reproducing apparatus that displays moving images recorded as moving image data on the recording medium on the display means is stored in the recording medium. Display control means for causing the display means to display a preview image including a display area in which still images of a plurality of frames in the recorded moving image are arranged in the order corresponding to the frame number, and display in the display area by the display control means A program for causing a plurality of still images to function as switching means for sequentially switching to a still image with a subsequent frame number while sequentially switching the update target.

  According to a ninth aspect of the present invention, in a moving image reproducing apparatus for reproducing a moving image recorded as moving image data on a recording medium and displaying the moving image on a display means, the moving image to be reproduced is recorded on the recording medium. The display means displays a preview image including a display area in which still images of a plurality of frames in a moving image are arranged in order according to the frame number, and the displayed still images are displayed as frame numbers after that. Display control means for scrolling the still images in order.

  In such a configuration, it is possible to make the user grasp more contents in the middle of the moving image with time.

  According to a tenth aspect of the present invention, when selecting a moving image to be reproduced, a computer having a moving image reproducing device for displaying a moving image recorded as moving image data on the recording medium on the display means is stored in the recording medium. The display unit displays a preview image including a display area in which still images of a plurality of frames in a recorded moving image are arranged in an order corresponding to a frame number, and the displayed plurality of still images are displayed in subsequent frames. A program for functioning as display control means for scrolling while sequentially connecting still images with numbers is provided.

  According to the eleventh aspect of the present invention, in the moving image reproducing apparatus for reproducing the moving image recorded as moving image data on the recording medium and displaying the moving image on the display means, the same as the display means is selected when selecting the moving image to be reproduced. In the display area, display control means for continuously displaying still images in a predetermined frame section in the moving image recorded on the recording medium is provided.

  In such a configuration, by displaying the content in the middle of the moving image as it is, it is possible for the user to grasp more of the content in the middle of the moving image with time.

  Further, in the invention of claim 12, the display control means displays still images of a plurality of frame sections in a moving image recorded on the recording medium in a plurality of display areas of the display means. Each time the display area is switched sequentially, the images are continuously displayed.

  In such a configuration, by displaying the contents in the middle of the moving image in time series in a plurality of display areas by the movement as they are, the contents in the middle of the moving image can be grasped by the user more with time.

  According to a thirteenth aspect of the present invention, in selecting a moving image to be reproduced, a computer having a moving image reproducing apparatus for displaying a moving image recorded as moving image data on a recording medium on the display unit is provided. A program for functioning as display control means for continuously displaying still images in a predetermined frame section in a moving image recorded on the recording medium in the same display area.

  As described above, according to the first to fifth aspects of the present invention, a large main representative image, each of which is a still image of a frame in the moving image, and a plurality of sub representative images smaller than the large main representative image, The contents can be understood by the user. Therefore, it becomes possible to make a user understand the content of a moving image clearly.

  In addition, in the invention of claim 2, more sub-representative images can be efficiently displayed. In the invention of claim 3, the main representative image and a plurality of sub-representative images are displayed immediately. Can do. In the invention of claim 4, the user can immediately grasp the contents in the middle of the moving image. Furthermore, in the invention of claim 5, the user is made to grasp more contents in the middle of the moving image with time. Therefore, it is possible to make the user understand the content of the moving image more clearly.

  Also, in the inventions of claims 7 and 9, it is possible to make the user grasp more contents in the middle of the moving image with time. Therefore, it is possible to make the user understand the content of the moving image more clearly.

  In the invention of claim 11, the contents in the middle of the moving image are displayed as they are, so that the user can grasp more contents in the middle of the moving image with time. Therefore, it becomes possible to make the user understand the content of the moving image more clearly.

  In addition, according to the twelfth aspect of the present invention, the content in the middle of the moving image is displayed in a plurality of display areas in time-sequential order with the movement as it is, so that the content in the middle of the moving image can be increased to the user with time. I was able to grasp it. Therefore, it is possible to make the user understand the content of the moving image more clearly.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
(Embodiment 1)
FIG. 1 is a block diagram of a digital camera according to the present invention. This digital camera is provided with a moving image recording and reproducing function in addition to a still image recording and reproducing function, and is based on moving image data recorded on the SD card 1 as a recording medium in the moving image shooting mode. Is reproduced and displayed on an LCD (Liquid Crystal Display) 13.

  One or more MPEG4 files (hereinafter referred to as moving image files) are recorded on the SD card 1, and the SD card 1 is connected to the bus 3 via the SD card interface 2. A main microcomputer 4, an imaging unit 5, an MPEG4 decoder 6, a resolution conversion unit 7, a general-purpose memory 8, a display memory 9, a display control unit 10, and a program memory 11 are connected to the bus 3. A key input unit 12 is connected to the main microcomputer 4, and an LCD 13 is connected to the display control unit 10.

  The imaging unit 3 includes an optical system that forms a subject image, a lens motor provided in a drive mechanism of the optical system, an imaging device such as a CCD that images a subject imaged by the optical system by photoelectric conversion, and an imaging device. The digital image signal is sent to the main microcomputer 4 and the MPEG4 decoder 6 via the bus 3.

  The key input unit 12 includes various operation keys such as a shutter key, an image selection key, a mode key for setting an operation mode, and a power switch. Scan signals are sequentially sent from the main microcomputer 4 to the key input unit 12 by interrupt processing. When any of the operation keys is operated by the user, the operation signal is detected by the control device 2. The MPEG4 decoder 6 performs compression / decompression of moving image data in the MPEG4 format. That is, at the time of moving image recording, the moving image data input from the imaging unit 5 via the bus 3 is compressed and output to the SD card 1. At the time of moving image reproduction, the moving image file read from the SD card 1 by the main microcomputer 4 is expanded and output as image data for each frame.

  The resolution conversion unit 7 converts the image data for each frame output from the MPEG4 file at the time of moving image reproduction into a predetermined image size instructed by the main microcomputer 4 and sequentially outputs it to the display memory 9. If necessary, the data is also output to a general-purpose memory 8 which is a working memory for the main microcomputer 4. The display control unit 10 causes the LCD 13 to display a moving image by generating a display signal based on the image data on the display memory 9. The display control unit 10 also generates a control signal for the LCD 13 necessary for displaying a moving image or the like.

  The main microcomputer 4 controls each part described above according to a key operation signal corresponding to a key operation by a user based on a program recorded in the program memory 11, so that the display control unit, the acquisition unit, the switching unit of the present invention are switched. Functions as a means.

  Next, an operation when performing a preview display operation of a moving image selected by the user in the digital camera having the above configuration will be described. The preview display operation is an operation for displaying a preview image, which will be described later, showing an outline when the user selects a moving image file to be reproduced. In the following description, when the user specifies a moving image to be reproduced, the file names of the moving image files recorded on the SD card 1 are displayed as a list on the screen of the LCD 13 and the key input unit 12 is displayed to the user. It is assumed that a desired file is selected and determined by operating the keys, and during that time, the selected file is sequentially executed. The preview image is displayed in a predetermined preview display area different from the area where the file names are displayed as a list.

  2 and 3 are flowcharts showing a processing procedure related to a preview display operation in the digital camera, and FIGS. 4 and 5 are operation explanatory diagrams.

  In the following, the digital camera starts to operate when any one of the moving image files is selected, reads out Frml moving image data (frame data 1) in the selected moving image file 100 from the SD card, and reads the general-purpose memory. 8 is written (step SA1), read out, decompressed by the MPEG4 decoder 6, and the result is written in the general-purpose memory 8 (step SA2). Then, the Frml decompression result, that is, the head still image data is read from the general-purpose memory 8, and the size of the first display area A secured in the above-described preview display area P (see FIG. 4) in the resolution converter 7 is obtained. After conversion to the corresponding resolution, the data is written in the memory area of the display memory 9 corresponding to the first display area A (step SA3, “display (1)” in FIG. 4).

  Next, the moving image data of Frm 151 is read from the SD force 1 and written to the general-purpose memory 8 (step SA4), read and decompressed by the MPEG4 decoder 6, and the result is written to the general-purpose memory 8 (step SA5). Then, the expansion result (still image data) of Frm 151 is read from the general-purpose memory 8, and the resolution conversion unit 7 secures the preview display area P side by side on the lower side of the first display area A. Corresponding to the second display area B after conversion to a resolution corresponding to the size of the second display area B located at the left end of the second to fourth display areas B, C, D smaller than the area A Is written in the memory area of the display memory 9 to be executed (step SA6, "display (2)" in FIG. 4).

  Subsequently, the still image data of Frm301 is written in the memory area of the display memory 9 corresponding to the third display area C located in the center (steps SA7 to SA9, “ (Display (3) "), and further, the still image data of Frm451 is written into the memory area of the display memory 9 corresponding to the fourth display area D located at the right end (steps SA10 to SA12, (" display (4) in FIG. 4) ". ) ").

  Through the above processing, the representative image 200a that is the still image of the first frame (Frml) of the moving image and the first to third images that are still images of the intermediate frames (Frm151, 301, 451) are displayed in the preview display area P. A preview image 200 composed of the sub representative images 200b to 200d is displayed (see FIG. 5A).

  Further, after the preview image 200 is displayed, as shown in FIG. 3, if there is no key operation by the user (NO in step SA13), the first sub representative image 200b ahead of 450 frames in the moving image file 100 is displayed. And if it exists (YES in step SA14), the still image data of the second display area B in the display memory 9 is added to the frame (initially 450 frames). Frm601)) is overwritten and the first sub representative image 200b is updated (see step SA15, FIG. 5B)).

  If there is no key operation by the user (NO in step SA16), it is confirmed whether or not the moving image file 100 contains frame data of 450 frames ahead of the second sub representative image 200c. If YES (YES in step SA17), the still image data of the third display area C in the display memory 9 is overwritten with the still image data of 450 frames ahead (initially Frm751), and the second sub representative image 200c. Is updated (see step SA18, FIG. 5C).

  If there is no key operation by the user (NO in step SA19), it is confirmed whether or not the moving image file 100 includes the frame data of 450 frames ahead of the third sub representative image 200d. If YES (YES in step SA20), the still image data of the fourth display area D in the display memory 9 is overwritten with the still image data of a frame ahead of 450 frames (initially Frm901), and the third sub representative image 200d. Is updated (see step SA21, FIG. 5D).

  Thereafter, the process returns to step SA13, and the above-described processing is repeated, so that the representative image 200a is not changed and the first to third sub-representative images 200b to 200d are sequentially switched in the update target while the frame numbers thereafter are changed. (See FIG. 5E). In the meantime, when there is no frame data 450 frames ahead when any one of the first to third sub representative images 200b to 200d is an update target (any of steps SA14, SA17, and SA20 is NO). Returning to the process of step SA4 in FIG. 2, the still images of the first to third sub-representative images 200b to 200d described above are once returned to the still image of the original frame number and then updated again. If there is any operation by the user during that time (YES in any of steps SA13, SA16, SA19), the process proceeds to a process corresponding to the operation (step SA22). For example, when a determination operation is performed, the process proceeds to the reproduction process of the selected moving image. When a selection operation is performed, that is, when another moving image file is newly selected, all the above-described processes are executed from the beginning.

  As described above, in the present embodiment, the first to third sub-representative images 200b to 200d, each of which is a still image of an intermediate frame of a moving image, are displayed as preview images together with the representative image 200a of the selected moving image. Since the images are simultaneously displayed as 200, the outline of the selected moving image can be clearly understood by the user by using the plurality of still images. Further, since the representative image 200a is displayed larger than the first to third sub-representative images 200b to 200d, for example, when the user performs an operation of selecting a moving image file one after another and checking each outline, This is convenient because it can make a strong impression on the video file.

  Furthermore, in the present embodiment, since the first to third sub representative images 200b to 200d are updated to still images with subsequent frame numbers while sequentially changing the update target, The content can be made to be understood by the user more with time, and the outline of the moving image can be understood more clearly by the user.

  In the present embodiment, the still image of the first frame (Frm1) of the moving image is used as the representative image 200a. However, still images of other frames may be used. For example, a frame in which a change in content between a preceding frame and a preceding frame in the moving image is a large change point may be searched, and the still image of that frame may be used. Alternatively, the user may designate a frame to be used in advance and use the still image data. In this case, however, the use frame is specified and information indicating the specified frame (frame or still image data) is recorded in the SD card 1 in association with the moving image file 100 by a method such as embedding in the moving image file 100. A separate pre-processing is required.

  In addition, the frames of the still images used as the first to third sub representative images 200b to 200d are frames for every 150 frames in all the frames of the moving image. However, the intervals are arbitrary and are equally spaced. Not necessary. In addition, the three still images are displayed as the first to third sub representative images 200b to 200d together with the representative image 200a. However, the number of sub representative images displayed together with the representative image 200a may be changed as appropriate. In addition, the number may be appropriately increased or decreased according to the size of the preview display area P or the like.

  In addition, when the preview image 200 is initially displayed, processing such as decoding, resolution conversion, and writing to the display memory 8 for the representative image 200a and the first to third sub-representative images 200b to 200d is performed individually. The processing procedure related to the display of the preview image 200 may be changed as necessary, and the first to third sub representative images 200b to 200d may be displayed before the representative image 200a.

  In addition, the first to third sub representative images 200b to 200d are not necessarily updated. In that case, the data of the representative image 200a and the first to third sub-representative images 200b to 200d are not generated at the time of the preview display operation as in the present embodiment, but at a previous time point, for example, a moving image file. It is generated in advance at the time of recording, and is recorded in the SD card 1 in association with the moving image file 100 by a method such as embedding it in the moving image file 100, and these are read and displayed during the preview display operation. Good.

  In addition, when the first to third sub representative images 200b to 200d are updated as in the present embodiment, the representative image 200a may be abolished from the preview image 200. Even in such a case, the user can be made to grasp the contents of the middle of the moving image more and more with time, so that the outline of the moving image can be more clearly understood by the user. In the present embodiment, the first to third sub-representative images 200b to 200d are updated immediately after the initial preview image 200 is displayed. However, the first to third sub-representative images 200b to 200d may be updated after a certain period of time. Good. Furthermore, it may be updated after waiting for a predetermined operation by the user.

  In the present embodiment, when the preview image 200 is displayed, the first to fourth display areas A to D are secured in the preview display area P from the beginning. Regardless of whether or not the third sub-representative images 200b to 200d are updated, for example, as shown in FIG. 6, the representative image 200a is displayed in the entire preview display region P without providing each display region at the beginning. After that, as shown in FIGS. 5A to 5C, the first to third sub representative images 200b to 200d are sequentially displayed by scrolling so that a part of the representative image 200a is gradually hidden. Alternatively, a preview image 200 as shown in FIG.

  Further, the arrangement of the first to third sub-representative images 200b to 200d may be appropriately changed. For example, as shown in FIG. 7, the periphery of the representative image 200a (three corner portions of the preview image 200 in the figure). You may make it arrange | position to.

(Embodiment 2)
Next, a second embodiment of the present invention will be described. In the present embodiment, in the digital camera having the same configuration as that described in the first embodiment, in the preview display operation in the program memory 11, the flowchart shown in FIG. A program for performing the processing shown in FIG.

  That is, in the present embodiment, when any one of the moving image files is selected, after the preview image 200 is displayed, there is no key operation by the user as shown in FIG. 8 (step SB1). NO), it is confirmed whether or not the frame data of 150 frames ahead of the third sub representative image 200d exists in the moving image file 100, and if it exists (YES in step SB2), the frame of 150 frames ahead Still image data (initially Frm601) is acquired and written in the general-purpose memory 8 (step SB3).

  After this, if there is no key operation by the user (NO in step SB4), the left end of the second display area B with respect to the data in the memory area of the display memory 8 corresponding to the second to fourth display areas B to D The display data of the portion is erased, and the entire data is shifted to the left by that amount (step SB5). Further, the still image data of the frame 150 frames ahead in the general-purpose memory 8 is written in order from the left end side in the memory area of the display memory 9 corresponding to the free space at the right end of the third display area C (Step SB6). ) Until all the still image data is written in the memory area of the display memory 9 (NO in step SB7), if there is no key operation by the user (NO in step SB4), the processes of steps SB5 and SB6 are repeated. As a result, as shown in FIGS. 9A to 9C, in the preview image 200, the still image data of the frame 150 frames ahead is connected to the right side of the already displayed third sub representative image 200d. Thus, all display images in the second to fourth display areas B to D are scrolled to the left.

  After that, all the still image data 150 frames ahead is displayed, and when the determination result in step SB7 is YES (see FIG. 9D), the process returns to step SB1 and the above-described processing is repeated, thereby On the right side of the third sub representative image 200d, the scroll display is continued while sequentially connecting new still image data 150 frames ahead (see FIG. 9E).

  In the meantime, when there is no more frame data 150 frames ahead (NO in step SB2), the process returns to the process of step SA4 in FIG. 2, and the still images of the first to third sub representative images 200b to 200d described above are returned. After returning to the still image of the original frame number, the above scroll display is performed again. If there is any operation by the user during that time (YES in either step SB1 or SB4), the process proceeds to a process corresponding to the operation (step SB8). For example, when a determination operation is performed, the process proceeds to the reproduction process of the selected moving image. When a selection operation is performed, that is, when another moving image file is newly selected, all the above-described processes are executed from the beginning.

  As described above, in the present embodiment, the first to third sub-representative images 200b to 200d are scrolled, and still images with subsequent frame numbers are sequentially displayed as new sub-representative images. As in the first embodiment, this also allows the user to grasp more contents in the middle of the moving image with time, and allows the user to understand the outline of the moving image more clearly.

  Also in the present embodiment, a still image of a frame other than the first frame (Frm1) of the moving image may be used as the representative image 200a. In addition, in the second to fourth display areas B to D, still images for every 150 frames in all frames of the moving image are displayed in order, but the interval is arbitrary and is not equal. Also good. In addition, the number of sub-representative images displayed together with the representative image 200a may be changed as appropriate, and may be appropriately increased or decreased according to the size of the preview display area P or the like.

  Further, the data of the representative image 200a and the first to third sub-representative images 200b to 200d displayed at the beginning of the preview display operation are not generated at the time of the preview display operation as in the present embodiment. You may make it produce | generate beforehand at the time of.

  Also in this embodiment, the representative image 200a may be abolished from the preview image 200. Even in such a case, the user can be made to grasp the contents of the middle of the moving image more and more with time, so that the outline of the moving image can be more clearly understood by the user. In addition, although the first to third sub representative images 200b to 200d are scrolled immediately after the initial preview image 200 is displayed, the preview image 200 may be updated after a certain period of time, or a predetermined value may be set by the user. You may make it update after waiting for operation.

(Embodiment 3)
Next, a third embodiment of the present invention will be described. In the present embodiment, in the digital camera having the same configuration as that described in the first embodiment, the processing shown in the flowchart of FIG. The program is stored. In the present embodiment as well, in the preview display area P, as in the first and second embodiments, the first display area A and the smaller second to fourth display areas B, C and D are secured.

  In the digital camera according to the present embodiment, when a list of file names is displayed, if any video file is selected, first the first frame (in the first display area A) of the selected video file 100 ( (Frml) still image, that is, the representative image 200a is displayed (step SC1). Here, if there is no key operation by the user (NO in step SC2), 30 frames of still images from 151 frames of the selected moving image are continuously displayed in the second display area B without thinning out intermediate frames. To do. That is, partial moving image reproduction is performed (see step SC3, FIG. 11A). If no key operation is continued by the user (NO in step SC4), still images for 30 frames from 301 frames of the selected moving image are continuously displayed in the third display area C without thinning out intermediate frames ( In step SC5, see FIG. 11B), and if there is no key operation by the user (NO in step SC6), still images corresponding to 451 to 30 frames of the selected moving image are displayed in the fourth display area D. Then, continuous display is performed without thinning out intermediate frames (see step SC7, FIG. 11C).

  After this, if there is no key operation by the user (NO in step SC8), the second display area B is stationary for 30 frames from 420 frames ahead of the display image at that time (initially 180). The images are continuously displayed without thinning out intermediate frames (see step SC9, FIG. 11 (d)). If there is no further key operation by the user (NO in step SC10), the third display area C also displays a still image for 30 frames from 420 frames ahead of the display image at that time (initially 330). If the frame is continuously displayed without thinning out (see step SC11, FIG. 11 (e)) and there is no key operation by the user (NO in step SC12), the display image at that time is also displayed in the fourth display area D. With respect to (initially 480), 30 frames from 420 frames ahead are continuously displayed without thinning out intermediate frames (step SC13). Thereafter, the process returns to step SC8, and the process up to step SC13 is repeated.

  Further, if there is any operation by the user while repeating the processing of steps SC8 to SC13 (YES in any of steps SC2, SC8, etc.), the process proceeds to the processing according to the operation (step SC14). For example, when there is a determination operation, the process proceeds to the reproduction process of the selected moving image. Although omitted in FIG. 10, the still image of the final frame is reached while partial moving image reproduction is performed in any one of the second to fourth display areas B, C, and D. Sometimes, the process returns to step SC2 at that time, and the process is executed again thereafter. When a selection operation is performed, that is, when another moving image file is newly selected, all the above-described processes are executed from the beginning.

  As described above, in the present embodiment, by displaying the content in the middle of the moving image as it is, it is possible for the user to grasp more of the content in the middle of the moving image with time. Therefore, the outline of the moving image can be understood more clearly by the user.

  Also in this embodiment, as described in the first and second embodiments, a still image of a frame other than the first frame (Frm1) of the moving image may be used as the representative image 200a. Further, the data of the representative image 200a may be generated in advance before that, instead of being generated at the time of the preview display operation as in the present embodiment.

  In the present embodiment, partial moving images every 150 frames are sequentially reproduced and displayed in the second to fourth display areas B to D, but the frame interval is arbitrary, and the like. It doesn't have to be an interval. The number of partial moving image display areas displayed together with the representative image 200a is three, but the number may be changed as appropriate, and may be increased or decreased as appropriate according to the size of the preview display area P or the like. . Further, the arrangement in the preview display area P is also arbitrary. The size of the one or more display areas is also arbitrary. For example, when one display area is provided, the display area may be the same size as the representative image 200a.

  Furthermore, also in the present embodiment, the representative image 200a may be abolished from the preview image 200. Even in that case, by displaying the content in the middle of the moving image as it is, it is possible to make the user understand more of the content in the middle of the moving image over time, and the outline of the moving image is clearer to the user. Can be understood.

  In the present embodiment, after the representative image 200a is displayed, the display of the partial moving images is started immediately in the order of the second to fourth display areas B, C, and D. After the first to third sub-representative images 200b to 200d, which are still images every 150 frames, are once displayed in the second to fourth display areas B, C, and D in the same procedure as in the second embodiment. The above-described moving image reproduction may be started after a certain interval, or the moving image reproduction may be started after waiting for a predetermined operation by the user.

  In each of the embodiments described above, when the user selects an arbitrary file in a state where the file name of the moving image file is displayed in a list on the screen of the LCD 12, the above-described preview display operation is performed on the moving image file. The preview display operation described above may be performed in the following cases.

  For example, when the screen size of the LCD 13 is small, the preview display operation described above may be performed for the moving image file at that time each time the reproduction candidate moving image file is sequentially sent and displayed. Further, when displaying a list of moving image files, the above-described preview display operation may be performed on all moving image files regardless of whether or not a selection is made by a key operation.

  Further, the case where the present invention is applied to a digital camera having a moving image recording and playback function has been described. However, the present invention is not limited to this, and the present invention is not limited thereto, for example, a digital video camera may be used. It can also be employed in various electronic camera devices such as camera-equipped mobile phones, camera-equipped PDAs, and camera-equipped personal computers. Even in that case, the above-described effects can be obtained.

  Furthermore, for example, it can be employed in a recording apparatus or a personal computer having a function of recording a broadcast image of an analog television broadcast or a moving image input from a video input terminal and reproducing them as necessary. In any of the above apparatuses, the recording medium for recording a moving image is not limited to the semiconductor memory such as the SD card described above, and may be another recording medium such as a hard disk.

It is a block diagram of a digital camera common to each embodiment. It is a flowchart which shows the process sequence of the preview display operation | movement in 1st Embodiment. It is a flowchart following FIG. It is operation | movement explanatory drawing regarding a preview display operation | movement. It is a transition diagram which shows the change of a preview image. It is a figure which shows the other display form of the 1st-3rd sub representative image in the beginning of a preview display operation | movement. It is a figure which shows the other display form of the 1st-3rd sub representative image in the beginning of a preview display operation | movement. 12 is a flowchart illustrating a processing procedure of a preview display operation according to the second embodiment. It is a transition diagram which shows the change of a preview image. It is a flowchart which shows the process sequence of the preview display operation | movement in 3rd Embodiment. FIG. 10 is a transition diagram illustrating a preview image display method.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 SD card 4 Main microcomputer 5 Imaging part 6 MPEG4 decoder 9 Display memory 10 Display control part 11 Program memory 13 LCD
100 movie file 200 preview image 200 initial preview image 200a representative image 200b first sub representative image 200c second sub representative image 200d third sub representative image A first display area B second display area C third Display area D Fourth display area P Preview display area

Claims (13)

In a moving image reproducing apparatus for reproducing a moving image recorded as moving image data on a recording medium and displaying the moving image on a display unit,
A main representative image composed of still images of a predetermined frame in the moving image, a plurality of sub representative images each composed of still images of a plurality of frames in the moving image, and a size of the main representative image of the sub representative image. An apparatus for reproducing a moving image, comprising: a display control unit that is larger than the size and displays the display unit together. From the moving image data recorded on the recording medium, comprising: acquisition means for acquiring still image data of the main representative image and the plurality of sub representative images,
The display control unit causes the display unit to display a main representative image and a plurality of sub-representative images based on the acquired still image data each time still image data is acquired by the acquisition unit. Item 4. A moving image reproducing apparatus according to Item 1. Acquisition means for respectively acquiring still image data of the main representative image and the plurality of sub representative images from moving image data recorded on the recording medium;
Control means for causing the still image data acquired by the acquisition means to be attached to the moving image data and recorded on the recording medium,
The display control means causes the display means to display a main representative image and a plurality of sub representative images together based on the still image data recorded along with the moving image data on the recording medium. Item 4. A moving image reproducing apparatus according to Item 1.   4. The moving image reproducing apparatus according to claim 1, wherein the display control means displays each of the plurality of sub representative images simultaneously in a plurality of display areas in the display means.   5. A switching means for switching each of a plurality of sub-representative images that are simultaneously displayed in a plurality of display areas by the display control means in an order corresponding to a frame number corresponding to each sub-representative image. Video playback device. A computer having a moving image reproducing apparatus for displaying a moving image recorded as moving image data on a recording medium on a display unit;
A main representative image composed of still images of a predetermined frame in the moving image, a plurality of sub representative images each composed of still images of a plurality of frames in the moving image, and a size of the main representative image of the sub representative image. A program for functioning as a display control unit that is larger than the size and is displayed together on the display unit. In a moving image reproducing apparatus for reproducing a moving image recorded as moving image data on a recording medium and displaying the moving image on a display unit,
Display control means for causing the display means to display a preview image including a display area in which still images of a plurality of frames in a moving image recorded on the recording medium are arranged in order according to a frame number when selecting a moving image to be reproduced. When,
Switching means for switching a plurality of still images displayed in the display area by the display control means to still images with subsequent frame numbers while sequentially switching the update targets. apparatus. A computer having a moving image reproducing apparatus for displaying a moving image recorded as moving image data on a recording medium on a display unit;
Display control means for causing the display means to display a preview image including a display area in which still images of a plurality of frames in a moving image recorded on the recording medium are arranged in order according to a frame number when selecting a moving image to be reproduced. When,
A program for causing a plurality of still images displayed in the display area by the display control means to function as switching means for sequentially switching to still images having frame numbers thereafter while sequentially switching the update objects. In a moving image reproducing apparatus for reproducing a moving image recorded as moving image data on a recording medium and displaying the moving image on a display unit,
When selecting a moving image to be reproduced, a preview image including a display area in which still images of a plurality of frames in the moving image recorded on the recording medium are arranged in an order corresponding to the frame number is displayed on the display unit and displayed. A moving image reproducing apparatus comprising display control means for scrolling a plurality of still images that are made by sequentially connecting still images having subsequent frame numbers. A computer having a moving image reproducing apparatus for displaying a moving image recorded as moving image data on a recording medium on a display unit;
When selecting a moving image to be reproduced, a preview image including a display area in which still images of a plurality of frames in the moving image recorded on the recording medium are arranged in an order corresponding to a frame number is displayed on the display unit and displayed. A program for causing a plurality of still images to function as display control means for scrolling while sequentially connecting still images having subsequent frame numbers. In a moving image reproducing apparatus for reproducing a moving image recorded as moving image data on a recording medium and displaying the moving image on a display unit,
When selecting a moving image to be reproduced, a display control unit is provided for continuously displaying still images of a predetermined frame section in the moving image recorded on the recording medium in the same display area of the display unit. A featured video playback device.   The display control means continuously displays still images of a plurality of frame sections in a moving image recorded on the recording medium in a plurality of display areas of the display means while sequentially switching the display areas for each frame section. The moving image reproducing apparatus according to claim 11, wherein: A computer having a moving image reproducing apparatus for displaying a moving image recorded as moving image data on a recording medium on a display unit;
When selecting a moving image to be reproduced, the display unit functions as a display control unit that continuously displays still images of a predetermined frame section in the moving image recorded on the recording medium in the same display area of the display unit. program.

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