JP4696967B2 - Display device, display method, and program - Google Patents

Description

  The present invention relates to an imaging display device, an imaging display method, and a program suitable for application to a digital camera capable of recording and reproducing a captured moving image file on a recording medium, for example.

  Conventionally, when a still image or the like is recorded using a digital still camera, information is written on a removable external recording medium. When recording captured image data on an external recording medium loaded in a digital still camera, recording is performed on the recording medium with a directory structure based on a specific standard. Based on the DCF (Design Rule for Camera File system) standard that defines the handling of directory structures, files, etc., for example, to enable recording and playback on external recording media even when using digital still cameras from different manufacturers. Files related to files and images are managed.

  In the DCF standard, a “DCIM directory” called a “DCF image root directory” is created immediately below a “ROOT directory” of a recording medium. Then, a directory according to a naming rule of “three-digit directory number + five free characters (for example, 101MSDCF)” called “DCF directory” is formed in a lower directory of “DCIM directory”, and the recorded image file is saved. Is done. As long as the DCF directory has a non-overlapping directory number from 100 to 999, classification at the time of saving a captured image is possible using a plurality of DCF directories. Further, in one DCF directory, a file according to a naming rule of “4-character free character + 4-digit file number + extension (for example, ABCD0001.jpg)” called “DCF file” as an image or sound file is stored. It is formed. A group of files having the same file number as the DCF file name is referred to as a “DCF object”, and up to 9999 DCF objects can be recorded in one DCF directory. In addition, when a new DCF directory is newly created, it is recommended that the directory number be incremented by a sequential number of the maximum number + 1 of the existing directory number.

  In recent years, digital still cameras have been provided not only with a function of shooting a still image but also with a function of shooting a moving image and recording a sound. When shooting and recording a shooting target as a still image or a moving image, the user can freely select a shooting type according to the usage situation and enjoy shooting. In addition, since the digital still camera is equipped with a liquid crystal display, the captured images can be checked on the spot, and multiple reduced images can be displayed as thumbnails, and the images necessary and unnecessary for the user can be discarded. You can now easily choose.

Japanese Patent Application Laid-Open No. 2004-228561 describes an image reproducing apparatus that displays the contents of a variable recording medium.
Japanese Patent Laying-Open No. 2005-79822 (FIG. 4)

  Conventionally, when a user browses images taken using a digital still camera, a technique called a slide show that automatically transitions images one after another has been used. Alternatively, the user presses a control button for transitioning images one by one for browsing.

  By the way, the capacity of recording media loaded in devices for recording and displaying various images taken with a digital still camera or the like has been increasing year by year. In addition, improvement in various encoding techniques has reduced the data capacity required for recording required for individual image information. Due to such a background, the number of images stored in one recording medium has become large, and the shooting time of moving images has become longer. For this reason, the number of images that can be recorded on a recording medium may be several hundred, and operations that have been conventionally used for browsing images while sending them one by one by sequential operations have become inefficient. It was. Further, since the moving image is recorded for a long time, the scene that the user wants to view cannot be displayed promptly unless operations such as fast forward and rewind are performed. However, such fast-forward and rewind operations have the inconvenience of passing through the scene you want to watch. Also, if you play the video normally from the beginning, it takes a long time to reach the scene you want to watch. Was bad. For this reason, a technique for efficiently browsing and operating a large number of images and specific scenes in a moving image has been demanded.

  The present invention has been made in view of such a situation, and an object thereof is to efficiently browse a recorded still image or moving image at an arbitrary timing.

The present invention provides an input unit for inputting a moving image or a still image, a display unit for displaying a moving image or a still image, an operation unit for selecting a moving image or a still image to be reproduced, and reproduction of a moving image based on an instruction from the operation unit Set a video bookmark that indicates a specific scene to be played, and during slide show playback , a video is specified from the still image selected by the operation unit, the first scene of the video selected by the operation unit, and the scene specified by the video bookmark. And a control unit that causes the display unit to display time by time.

In this way, during slide show playback , a movie is played and displayed for a predetermined time from the still image selected by the operation unit, the first scene of the movie selected by the operation unit, and the scene specified by the movie bookmark. It became possible to do.

According to the present invention, at the time of slide show reproduction , the moving image is displayed for each predetermined time from the still image selected by the operation unit, the first scene of the moving image selected by the operation unit, and the scene designated by the moving image bookmark. Therefore, even if it is a comparatively long moving image, there exists an effect that the location which a user desires can be searched and browsed rapidly.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. The present embodiment is an example applied to a digital still camera that takes a still image and a moving image and can browse and display the image and performs directory management based on the DCF standard.

  First, an internal configuration example of the digital still camera of this example will be described. FIG. 1 is a block diagram showing an example of the internal configuration of the digital still camera 100 of this example. A digital still camera 100 includes a camera unit 1 having an imaging function for still images and moving images, a DSP (Digital Signal Processor) 2 that performs predetermined processing on captured images, and an SDRAM (Synchronous Dynamic Random) that is a rewritable recording medium. (Access Memory) 3, a medium interface (I / F) 4 serving as an interface unit for reading and writing to an external recording medium, a control unit 5 for controlling processing of each block, an operation key, and the like are provided for operation. An operation unit 6, an LCD (Liquid Crystal Display) controller 7 that performs liquid crystal drive processing, an LCD 8 that displays captured images, menus, and the like, and an external interface (I / F) 9 that can communicate with an external device (not shown). Prepare. Here, the external interface 9 is provided as a wired interface such as an IEEE (Institute of Electrical and Electronics Engineers) 1394 system or a USB (Universal Serial Bus) terminal. Then, it is possible to perform writing and reading of still image and moving image files accompanying the imaging display operation on the removable recording medium 10. In the digital still camera of this example, a so-called memory card using, for example, a semiconductor memory is used as the recording medium 10.

  At the time of photographing an image, an optical block driver 14 that controls driving of the optical block 11 including a lens, a focus mechanism, a shutter mechanism, an aperture (iris) mechanism, and the like controls the optical block 11 according to control from the control unit 5. A drive signal to be operated is formed. Then, this drive signal is supplied to the optical block 11 to operate the optical block 11. The optical block 11 is controlled by a focus mechanism, a shutter mechanism, and a diaphragm mechanism in accordance with a drive signal from the optical block driver 14 to capture an image of a subject and generate an imaging signal. 12 supplies the image. Here, the CCD driver 15 that controls the drive of the CCD image pickup device 12 forms a drive signal based on the timing signal supplied from the timing generation circuit 16 that generates the timing signal supplied to the CCD image pickup device 12 and the CCD driver 15. Then, the CCD image pickup device 12 is driven.

  The image light incident through the optical block 11 is imaged on the imaging surface of the CCD image sensor 12 that photoelectrically converts the received imaging signal. Then, the CCD image pickup device 12 photoelectrically converts the image output signal corresponding to the subject image formed on the image pickup surface from the image from the optical block 11 and outputs it. Further, the CCD image pickup device 12 performs, based on the timing signal generated from the timing generation circuit 16 controlled by the control unit 5, an image of the captured subject (image information) as an electrical signal before performing predetermined preprocessing. This is supplied to the processing circuit 13. The pre-processing circuit 13 performs CDS (Correlated Double Sampling) processing on the supplied electrical signal image information to maintain a good S / N ratio, and performs AGC (Automatic Gain Control) processing. The gain is controlled, and A / D (Analog / Digital) conversion is performed to form image data converted into a digital signal. In the digital still camera 100 of this example, the blocks 11 to 16 that process the imaging output signal in this way are referred to as the camera unit 1.

  The image data converted into a digital signal is supplied from the preprocessing circuit 13 to the DSP 2. The DSP 2 performs camera signal processing such as AF (Auto Focus), AE (Auto Exposure), and AWB (Auto White Balance) on the supplied image data. The image data subjected to various adjustments in this way is compressed by a predetermined compression method, and is transferred to the removable recording medium 10 loaded in the digital still camera 100 through the system bus 55 and the medium interface 4, for example. It is recorded as an image file conforming to the DCF standard.

  On the other hand, when displaying an image, the image data recorded on the recording medium 10 is transferred to the medium in accordance with an operation input from the user received through the operation unit 6 constituted by a touch panel, a control key, or the like. It is read from the recording medium 10 through the interface 4 and supplied to the DSP 2. With respect to the compressed image data supplied to the DSP 2, the DSP 2 performs decompression processing (decompression processing) and supplies the decompressed image data to the LCD controller 7 through the system bus 55. The LCD controller 7 forms an image signal from the supplied image data, and supplies the image signal to the LCD 8 that can display an image. As a result, an image corresponding to the image data recorded on the recording medium 10 is displayed on the display screen of the LCD 8. Here, the display form of the image follows the display processing program recorded in the flash ROM 53. This display processing program is a program for executing and controlling how a file system (to be described later) is recorded and how an image is reproduced.

  The control unit 5 provides a CPU (Central Processing Unit) 51 that performs processing calculation and control, a rewritable RAM (Random Access Memory) 52, a flash ROM (Read Only Memory) 53, and the time in the digital still camera 100. The clock circuit 54 is a microcomputer configured by connecting a predetermined signal to a system bus 55 capable of communicating with each other, and controls each block. Here, the RAM 52 is mainly used as a work area, such as temporarily storing intermediate results of processing. The clock circuit 54 can provide the current date, the current day of the week, and the current time, and has a function of adding date and time information such as a shooting date and time to the shot image file. The flash ROM 53 stores various programs executed by the CPU 51 and data necessary for processing.

  The digital still camera 100 of this example is provided with an external interface 9. Through this external interface 9, for example, it can be connected to an external computer device (not shown), can receive image data from the computer device, and can record it on the recording medium 10 loaded in the own device. Further, the image data recorded on the recording medium 10 loaded in the own apparatus can be supplied to an external computer device or the like.

  In this way, the user can take an image of a subject and record it on the loaded recording medium 10 by using the digital still camera 100 of the present example, and the image data recorded on the recording medium 10. Can be read, displayed, and viewed and edited as desired.

  Here, the index management function of the image file in the digital still camera 100 of this example will be described with reference to FIG. The digital still camera 100 is recorded in a specific area of the recording medium 10 and manages image files, thumbnail images, moving image bookmarks, and the like using an index system having an index function. The moving image bookmark used in this example is a mark set in a specific scene on the time axis for reproducing a moving image, and reproduction can be started in a predetermined reproduction section from the specific scene every time the moving image bookmark is set. . FIG. 2 shows an example of an index system folder structure and entries created for centrally managing and referencing images in the digital still camera 100.

  The digital still camera 100 has an index system 200 having a database function for managing entries, thumbnail images, and metadata of various files in order to quickly obtain target information for management target files such as still image files and moving image files. This improves the processing performance during search and reference. Further, the index system 200 can register entry information not only for real files and real folders having actual data on the recording medium 10 but also for virtual files and virtual folders by the file management system of the recording medium 10. As described above, the index system 200 is used to manage files in a folder structure having a hierarchical structure.

  The index system 200 is configured for each recording medium (in this example, the recording medium 10). The index system 200 manages the recorded image file entry, file name, file length, and other information. When browsing an image, the data stored in the recording medium 10 can be quickly accessed by referring to the entry of the index system 200.

  FIG. 2A shows an example of the folder structure of the index system 200. Immediately below the index root folder a1 which is the highest folder, an original root folder a2 in which entry information for image files is recorded and a favorite folder a3 in which entry information for favorite files are recorded are tree-type folders. Stored in structure. Here, for the sake of explanation, an entry index to be referred to when accessing by the index system 200 is assigned to all folders and files in the form of “# numbers”.

  Immediately under the original root folder a2, folder creation dates are assigned to a plurality of original folders, such as an original folder a20 dated April 1, 2005, an original folder a23 dated April 5, 2005,. And stored. The image file, thumbnail image, and metadata stored in the original folder are unique, and the same image file, thumbnail image, and metadata are not stored in a plurality of original folders.

  Similarly, favorite folders a4, a5,... Are stored immediately below the favorite root folder a3. The favorite folder represents a link group in which link information for an arbitrary file is recorded. In this example, an arrow indicates that link information to the file a24 is recorded in the favorite folder a4. Since information such as actual thumbnail images is not stored in the favorite folder, link information to the same file stored in the original folder may be recorded in a plurality of favorite folders.

  In the index system 200, bookmark information is held in a bookmark entry associated with a file entry. FIG. 2 shows an example in which a bookmark is given to the moving image file indicated by the file entry # 24. The association can be performed by holding the reference information in the file entry.

  Bookmark entry # 25 is linked to file entry # 24. Thus, when reading a video bookmark, the index system 200 is used to acquire time information from the bookmark entry # 25 based on the reference information of the file entry # 24, and the video bookmark is set from the obtained time. Specific scenes can be played back. The moving image bookmark can be directly set to the moving image during moving image shooting or moving image reproduction by an operation on a bookmark setting button (not shown) of the operation unit 6 or a bookmark setting menu displayed on the display unit 8. The bookmark entry includes time information from the head of the corresponding moving image file, reference information for accessing the corresponding moving image file, reference information for the thumbnail image in the thumbnail image file and the metadata in the metadata file. Stored. With the time information from the head of the corresponding moving image file and the reference information for accessing the corresponding moving image file, it is possible to access a predetermined position of the corresponding moving image file from the bookmark entry.

  It is also possible to refer to a plurality of bookmark entries from the file entry # 24. In that case, for example, bookmark entry # 26 (not shown) may be provided, and bookmark entry # 25 and bookmark entry # 26 may be referred to from file entry # 24.

  For the thumbnail image and metadata to be referred to from the bookmark entry, for example, the representative image of the image data at the position corresponding to the time information of the bookmark entry is stored as a thumbnail image in the thumbnail image file, and the title of the corresponding moving image file, Comments and the like are stored as metadata in the metadata file.

  When the image is reproduced, for example, the thumbnail image D is acquired from the bookmark entry # 25 and displayed on the display unit 8. When the thumbnail image D is selected by the user's instruction, the predetermined position of the corresponding moving image file is accessed based on the information of the bookmark entry # 25, and the reproduction of the moving image is started from the predetermined position. Become. Further, here, the file entry # 24 is referred to by # 4 which is an entry of the favorite folder. Thereby, it is also possible to acquire time information of the bookmark entry # 25 from the favorite folder a4.

  Further, the bookmark entry # 25 may be referred directly from the favorite folder. For example, the favorite folder a4 stores a plurality of pieces of reference information for referring to file entries of a plurality of image files obtained by photographing the person A, and the favorite folder a5 includes a plurality of image file files obtained by photographing the person B. By storing a plurality of pieces of reference information for referring to an entry, it is possible to acquire a thumbnail image group in which a desired person is photographed via a favorite folder. As described above, a distinction may be made for each person, or folders for the same person may be separated according to the expression of the person. Further, the user may set an image group for personal browsing and a group for viewing by other users, and folders may be separated based on this.

  FIG. 2B shows a file configuration example of the index system 200. In the index system 200, when the management target file is a file related to video content, property data including an entry index is created from the attributes of each management target file, and the property file F1 is configured by a series of property data. A property file header which is information of the property file F1 itself is created in the header portion of the property file F1. Then, the property data to which the folder and file entry indexes are assigned is sequentially stored from the entry index # 1 of the index root folder a1. Also, each thumbnail image is created from each management target file, and a thumbnail image file F2 is created by a series of entries based on the thumbnail images. When meta information such as a file name is given to the file, a metadata file F3 is created by a series of entries based on the meta information.

  In the property data stored in the property file F1 of this example, various types of information such as file image information, shooting date / time, editing date / time, browsing date / time, and the like are recorded. Access information indicating the corresponding thumbnail image entry is recorded in the property data related to the image file. In this example, the access information is represented by arrows to the thumbnail image file F2 and the metadata file F3. In this example, thumbnail images a21 ′, a22 ′, a24 ′, and a25 ′ (images) corresponding to the image files of entry indexes # 21, # 22, # 24, and # 25 of files a21, a22, a24, and a25, respectively. A, B, C, D) are created in advance in the thumbnail image file F2. The entry indexes # 21 and # 22 of the files a21 and a22 store entry information for the metadata file F3 storing the file name, file type, and the like. By reading the thumbnail images recorded in the thumbnail image file F2 at the time of image browsing or the like, a large number of image files recorded on the recording medium 10 can be quickly displayed as thumbnails. Further, based on the recording of the property file F1, it is possible to access the original image file from the thumbnail image selected by the user and display the image.

  Since the property data to which the entry index is assigned is stored in the property file F1 as described above, even when many image files are stored in the recording medium 10, the original file is used when the digital still camera 100 performs image browsing. It is possible to quickly search and improve processing performance such as image display without access to the. Further, since the images are created in advance as thumbnail images, they can be displayed promptly when performing thumbnail display.

  Next, a setting example of the moving image file and moving image bookmark of this example will be described with reference to FIG. The user sets a moving image bookmark in a portion (specific scene) that the user wants to see in the moving image. Then, the user can skip the playback image in the middle and specify the moving image bookmark to perform the cue playback. Also, the moving image bookmark can be arbitrarily set by the user during shooting of the moving image or during playback of the moving image. In this example, for the captured moving image file M1, the user sets moving image bookmarks b1 and b2 at two arbitrary locations along the right time axis.

  Next, an example of playing back a predetermined time from the moving image bookmark will be described with reference to FIG. The moving image file M1 is provided with a moving image bookmark b1, and the user designates the moving image bookmark b1 to perform cueing reproduction of a specific scene. The cue playback is set so that the moving image playback starts from a position that is, for example, 2 seconds back from the position where the moving image bookmark b1 is set. From the count value of the video playback counter c1 that measures the playback time of the video using the clock circuit 54, the playback start time of the video file M1 of this example is 0:00 (seconds), and the location where the video bookmark b1 is installed Is 0:17 (seconds). At this time, when the cue reproduction specifying the moving image bookmark b1 is performed, the reproduction of the moving image file is started from 0:15 (seconds) two seconds after the moving image bookmark b1. If the movie time that can be reproduced ahead of the movie bookmark b1 is less than 2 seconds, the reproduction is started from the beginning (0:00 (second)) of the movie file M1. Here, the playback section of the moving image file M1 is set as a playback section m1. The playback section m1 in this example is set to start playback from the moving image bookmark b1 and continue to the last scene of the moving image file M1. However, the playback section can be set to play back only for a predetermined time.

  Next, an example of reproducing a predetermined time from a moving image bookmark will be described with reference to FIG. Normally, playback is set up to play back to the end of the video file. In this example, playback is started from the video bookmark, and playback is set to end after a predetermined time. In this example, when the user designates the video bookmark b1 and starts playback, the video file is set to the playback section m1 for only 5 seconds from 0:17 (seconds) to 0:22 (seconds) from the count value of the video playback counter c1. It is set to play M1. If the playback section m1 behind the video bookmark b1 is less than 5 seconds, playback is performed up to the end of the video file. The playback section m1 based on the moving image bookmark can be arbitrarily set by the user, for example, either 3 seconds or 5 seconds.

  Next, an example of continuously reproducing a plurality of video bookmarks before and after will be described with reference to FIG. In this example, the reproduction control process of the moving image bookmark shown in FIGS. 4 and 5 is continuously performed on a plurality of moving image bookmarks, and such a reproduction control process is referred to as “digest reproduction”. In FIG. 6, one video bookmark b1 is provided for the video file M1, and the playback time before and after the video bookmark b1 is set as a playback section m1. Similarly, movie bookmarks b2 and b3 are provided in the movie file M2, and movie bookmark b4 is provided in the movie file M3. Also, the playback times before and after each of the video bookmarks b2 to b4 are set as playback sections m2 to m4. When digest playback is performed, transition to playback sections m1 to m4 in the order of the video bookmarks b1 to b4 is performed, and partial playback of the video files M1 to M3 can be performed continuously.

  Next, an example of continuously playing back and forth a moving image bookmark and still images will be described with reference to FIGS. FIG. 7 shows an example of combining still image display with digest playback. Here, as with the slide show playback function used conventionally, a specific scene set with a still image or moving image bookmark is displayed for a predetermined time, and then the next image is displayed in order. In this example, a still image and a moving image are recorded in order of shooting time, a still image file S1, a moving image file M1, a moving image file M2, a still image file S2, and a moving image file M3. Video bookmarks b1 to b4 are set for the video files M1 to M3. When a video bookmark and a still image are continuously played back, digest playback and still image playback are performed in order of shooting time by a predetermined time set in advance. A moving image bookmark is not set in the still image file, but it is possible to set a time such as reproducing a still image for 2 seconds and performing the next image reproduction at the time of reproduction by the slide show function.

  FIG. 8 is a flowchart of an example of processing for continuously playing back and after a moving image bookmark and still images. First, it is determined whether the image to be reproduced is a moving image (step S1). If it is not a moving image, the still image is reproduced for a predetermined time (step S2), and it is determined whether there is a next image (moving image or still image file) (step S5).

  On the other hand, when the image to be reproduced is a moving image, it is determined whether a moving image bookmark is set in the moving image file (step S3). If a moving image bookmark is set in the moving image file, the moving image is reproduced only for a predetermined reproduction section from a predetermined time before the moving image bookmark (step S4). Then, returning to the process of step S3, it is determined whether or not there is a next moving image bookmark in the same moving image file, and the reproduction processing of the moving image bookmark is repeated. If it is determined that there is no moving image bookmark in the moving image file, it is determined whether there is a next image (moving image or still image file) (step S5). If there is a next image, the process returns to step S1 to repeat the process. If there is no next image, the reproduction process ends.

  In this way, when a moving image bookmark set to a moving image and a still image are continuously reproduced, it is possible to reproduce the moving image bookmark for a predetermined time by going back a predetermined time.

  In addition, when still image display is combined with digest playback, playback may be performed for a predetermined time from the beginning of the video file in addition to the video bookmark. An example of processing for continuously reproducing a moving image and a still image will be described with reference to FIG.

  First, it is determined whether the image to be reproduced is a moving image (step S11). If it is not a moving image, the still image is reproduced for a predetermined time (step S12), and it is determined whether there is a next image (moving image or still image file) (step S16). If it is a moving image, playback is performed for a predetermined time from the beginning (step S13). Then, it is determined whether or not a moving image bookmark is set in the moving image file (step S14).

  When a moving image bookmark is set in the moving image file, the moving image is reproduced for a predetermined time from a predetermined time before going back from the moving image bookmark (step S15). Then, returning to the process of step S14, it is determined whether or not there is a next moving image bookmark in the same moving image file, and the reproduction processing of the moving image bookmark is repeated.

  If it is determined that there is no moving image bookmark in the moving image file, it is determined whether there is a next image (moving image or still image file) (step S16). If there is a next image, the process returns to step S1 to repeat the process. If there is no next image, the reproduction process ends.

  In this way, when playing back a video bookmark set for a video and a still image continuously, the video bookmark is played from the video bookmark if it is played for a predetermined time from the top of the video and a video bookmark is set. It has become possible to reproduce a predetermined time from a predetermined time before going back.

  Next, processing when there are a plurality of moving image bookmarks within a predetermined playback section will be described with reference to FIG. In this example, when the next video bookmark is set in the playback section after a certain video bookmark, the playback time is measured from the next video bookmark and is processed to be played back for a predetermined time.

  First, it is determined whether or not there is a next video bookmark in the playback section of the video file (step ST21). If there is no next video bookmark in the playback section, the process ends. On the other hand, if there is a next video bookmark in the playback section, the playback section for a predetermined time is reset from the next video bookmark (step ST22), and the process is terminated.

  In this way, even when there is a next video bookmark in the playback section, it is possible to smoothly perform digest playback of the video bookmark and still image. However, this does not apply to unselected movie bookmarks when digest playback is performed by individually selecting the head of a movie to be played, movie bookmarks, and still images.

  Here, an example of the forward / backward operation during digest reproduction will be described with reference to FIG. In the digital still camera 100 of this example, the user performs a digest reproduction operation using a cross key 6a that can select a menu and an image on the operation unit 6 in the up, down, left, and right directions. The left direction key of the cross key 6a is an image / movie bookmark return key, and performs image / video bookmark return playback in the negative direction of the time axis. On the other hand, the right direction key of the cross key 6a is an image / movie bookmark advance key, which performs image feed / movie bookmark feed playback in the forward direction of the time axis. By this forward / backward operation, the image is reproduced and displayed only for a predetermined reproduction section (outlined arrow). At this time, the digest is reproduced not only before and after the moving image bookmark but also including a predetermined time from the first scene of the moving image. However, it is also possible to set to reproduce only a specific scene to which a moving image bookmark is added without including the first scene of the moving image.

  In this way, the operation device (the cross key 6a of the operation unit 6) is also used as an image forward / backward operation, and during the forward / backward operation during digest playback, the desired / unnecessary parts can be selected and displayed seamlessly. can do. In this example, the user performs digest reproduction including an arbitrary still image by using the cross key 6a.

  In addition, if a moving image bookmark is sent during execution of digest reproduction, the currently reproduced moving image bookmark can be skipped and reproduction of the next image or moving image bookmark can be started. On the other hand, when a moving image bookmark return operation is performed, the currently reproduced image or moving image bookmark can be reproduced again.

  Next, a screen display example of a slide show that combines digest reproduction of a moving image bookmark and still image reproduction will be described with reference to FIG. In this example, the moving image bookmarks of the moving image files M1 and M2 and the digest reproduction of the still image file S1 are performed. In FIG. 12A, one moving image bookmark b1, b2 is provided for the moving image file M1. The playback sections from the beginning of the moving image files M1 and M2 are set as playback sections m1 and m4. In addition, a playback section before and after the video bookmark b1 is a playback section m2, and a playback section before and after the video bookmark b2 is a playback section m3. Similarly, a moving image bookmark b3 is provided in the moving image file M2. The playback time before and after the video bookmark b3 is set as a playback section m5. There is a still image file S1, and the reproduction time of the still image file S1 is set as a reproduction section m6.

  FIG. 12B is a display example of a slide show menu. On the display unit 8, the top image of the moving image file M1 is displayed as a single screen format of full screen display. When the user selects “slide show” from the main menu, for example, “time order playback”, “every date”, and “random playback” are displayed as submenus. Here, “time-order reproduction” is a function of reproducing an image for a predetermined interval along the time axis and transitioning to the next image display to reproduce the image. Further, “every date” is a function for reproducing an image in units of dates taken. “Random playback” is a function that makes the playback order of images random. Now, when “time order playback” is selected, the moving image file M1 is displayed only in the playback section m1, and then the screen transitions to FIG.

  FIG. 12C is an example of a single screen display of a slide show. At this time, the playback section m2 of the video bookmark b1 is displayed in a single screen format. When a predetermined time elapses, the screen transitions to FIG. FIG. 12D is also a single screen display example of a slide show. However, in FIG. 12D, the playback section m3 of the bookmark b2 next to the moving image bookmark b1 is displayed in a single screen format. In this way, slide show playback is performed in sequence up to the playback section m6 of the still image file S1. The slide show reproduction can be arbitrarily stopped at an image desired by the user, and normal reproduction can be performed from the selected image.

  In this way, it is possible to play back an image by combining digest playback of a moving image bookmark and still image playback.

  According to the present embodiment described above, by setting a moving image bookmark in a moving image file, it is possible to easily search for a target image at the time of browsing operation, and there is an effect that search performance is improved.

  In addition, since the video bookmarks that have been set are continuously played back and forth for a predetermined time, it is possible to play back a particular scene that is marked as particularly to be viewed from a large number of images. For this reason, there exists an effect that the image worth seeing for a user can be searched effectively. Further, since the moving image bookmark is set at the moment when the user desires to display and reproduce, there is an effect that images can be easily collected and reproduced even when the moving image is relatively long.

  In addition, for example, when the moving image bookmark setting operation is delayed during recording of a moving image, there is a possibility that the moving image bookmark is not set at a moment desired by the user. However, even in such a case, the playback may start from the moment you wanted to see during the digest playback by playing back a predetermined time from the specific scene set with the video bookmark. Is effective. In addition, since the moving image bookmark can be set at the time of reproduction of the moving image, the user can surely set the moving image bookmark.

  In addition, when performing a browsing operation of a specific scene using the slide show function, the user can set the playback section to an arbitrary value, so that digest playback can be easily performed according to the user's preference. Further, since it is possible to reproduce the slide show function by combining digest reproduction and still image reproduction, there is an effect that the recorded image is not missed. It is also possible to transfer the playback image to an external monitor connected to the external interface 9 for slide show playback.

  Note that the playback control processing described in FIGS. 4 and 5 of the above-described embodiment (playing a predetermined time from a video bookmark, continuously playing back and forth the video bookmark) may be performed independently or in combination. You may go. Also, the length of the playback section can be determined according to a certain rule according to the length of the moving image file, instead of a fixed time such as 2 seconds or 5 seconds, for example. For example, if the movie file is less than 1 minute, the playback time can be selected from a combination of 2 seconds and 5 seconds. If the movie file exceeds 1 minute, 1 / 30th and 1 / 12th of the movie recording time. You may make it select from the combination of these. In addition, the reproduction time may be adjusted by relating to the previous and subsequent images in the shooting date and time and the display order. Alternatively, random playback times may be combined regardless of the recording time of the moving image.

  In addition, the total playback time of the moving image bookmark can be determined in advance. At this time, the total playback time is determined according to the number of moving image bookmarks. For example, if the total playback time is 10 minutes and the total number of video bookmarks is 10, the playback time for each video bookmark is set to 1 minute (60 seconds). If the total number of bookmarks is 100, the playback time for each video bookmark may be set to 6 seconds. Normally, the playback time of the moving image bookmark is determined to be, for example, 3 seconds, and switching may be performed so as to change the playback time for each number of moving image bookmarks with respect to the total playback time by option setting. Alternatively, the playback time may be made variable depending on how many moving image bookmarks are given to the entire moving image or the number of moving image bookmarks in the whole. At this time, if the moving image bookmark is frequently set, the playback section may be shortened, and if the setting of the moving image bookmark is relatively small, the playback section may be lengthened.

  If the recording time of the moving image is long, the moving image bookmark may be variably set so as to increase the reproduction time of the moving image bookmark. For example, when the recording time of a video file is 1 minute or less, the playback time of the video bookmark is 2 seconds, and when the recording time of the video file exceeds 1 minute, the playback time of the video bookmark is 5 seconds. The playback time may be variable.

  In the above-described embodiment, the moving image and the still image are photographed so as not to overlap with each other on the time axis. However, there is a possibility that the still image is photographed during the photographing of the moving image. This is because when still images taken by an external device are captured, still images may be mixed during the moving image playback section. In such a case, even during the playback section measured from the video bookmark, the video bookmark may be played back again after a predetermined time has elapsed after switching to still image display.

  In the above-described embodiment, when a video bookmark and a still image are reproduced using the slide show function, the reproduction process is terminated when there is no next reproducible image. The reproduced image may be repeated from the first image on the time axis. In the above-described embodiment, playback is performed in the order of shooting along the time axis. However, a moving image bookmark and a still image may be played back in the reverse order of shooting. Further, moving image bookmarks and still images may be selectively cued and reproduced as scenario reproduction.

  In the embodiment described above, the forward / backward operation during the digest playback is performed using the cross key 6a. However, an input unit such as a button capable of selecting a menu, an image, and the like, a touch panel, and a pointing device is provided. Then, image browsing may be performed. By doing so, it is possible to efficiently perform a forward / backward operation during digest reproduction.

  In the embodiment described above, still images and moving images are played back. However, still images and moving images may be selected and played back. In this way, even when there are a large number of still images, only moving images can be selectively reproduced. Alternatively, only still images can be displayed in order.

  Various processes can be considered for the reproduction control of the moving image bookmark. The playback order of each video bookmark may be in accordance with the order of shooting time at the video bookmark position or other metadata added to the image. Also, when connecting the playback sections of each video bookmark, transition effects such as cross-fading, and fast-forward playback of images and audio between video bookmarks can be eliminated.

  In the above-described embodiment, the slide show menu is selected from the single screen display and the digest playback is performed. However, the start image is displayed as a thumbnail for each specific scene to which the video bookmark is added, and the selected thumbnail image is displayed. The slide show reproduction may be started from the beginning. Further, the recording time of the thumbnail image may be displayed together with the image. By doing so, there is an effect that the portion where the moving image bookmark is set can be surely grasped even for a relatively long moving image, and the scene desired by the user can be easily reproduced. In addition, since the moving image bookmark can be arbitrarily set and deleted, there is an effect that the editing work can be easily performed even in moving image editing.

  In the above-described embodiment, the setting of the moving image bookmark is performed during the shooting of the moving image or the reproduction of the moving image. However, the moving image bookmark may be set by specifying a time. Further, for example, moving image bookmarks may be set at regular time intervals such as every 30 seconds and every minute.

  In the above-described embodiment, the present invention is applied to the DCF standard digital still camera 100 capable of shooting moving images and still images. However, the present invention is similarly applied to a digital still camera capable of shooting other standard moving images. The effect of can be obtained. Further, the same effect can be obtained even when the present invention is applied to an image display device including a display that can recognize the removable recording medium 10 and an electronic device such as a DVD recorder. In addition, a large-capacity recording medium such as a hard disk drive, an optical disk, or a magnetic disk may be built in the apparatus itself to record moving images and still images, and to set moving image bookmarks.

  In the above-described embodiment, the digest playback type can be added by importing a software program or the like from the external interface 9 that can be connected to the digital camera 100 via a network, and enabling version upgrade at any time. Alternatively, a similar upgrade program may be stored in the recording medium 10 so that the upgrade is performed when the recording medium 10 is mounted.

It is the block diagram which showed the internal structural example of the digital still camera in one embodiment of this invention. It is explanatory drawing which showed the folder structure and the example of an entry in one embodiment of this invention. It is explanatory drawing which showed the example of the moving image file and moving image bookmark in one embodiment of this invention. It is explanatory drawing which showed the example reproduced | regenerated for a predetermined time from the moving image bookmark in one embodiment of this invention. It is explanatory drawing which showed the example which reproduces | regenerates the predetermined time of the moving image bookmark in one embodiment of this invention. It is explanatory drawing which showed the example reproduced continuously before and behind the moving image bookmark in one embodiment of this invention. It is explanatory drawing which showed the example which reproduces | regenerates continuously before and after the moving image bookmark in one embodiment of this invention. It is the flowchart which showed the example of a process which reproduces | regenerates continuously before and after the moving image bookmark in one embodiment of this invention. It is the flowchart which showed the process example which reproduces | regenerates the moving image and still image partially continuously in one embodiment of this invention. It is the flowchart which showed the example of a process when there exist a some bookmark in the reproduction area in one embodiment of this invention. It is explanatory drawing which showed the example of sending / returning operation during digest reproduction | regeneration in one embodiment of this invention. It is explanatory drawing which showed the screen display example of the slide show which combined the digest reproduction | regeneration in one embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Camera part, 2 ... DSP, 3 ... SDRAM, 4 ... Medium interface, 5 ... Control part, 6 ... Operation part, 7 ... LCD controller, 8 ... LCD, 9 ... External interface, 10 ... Recording medium, 11 ... Optical Block, 12 ... CCD, 13 ... Pre-processing circuit, 14 ... Optical driver, 15 ... CCD driver, 16 ... Timing generation circuit, 51 ... CPU, 52 ... RAM, 53 ... Flash ROM, 54 ... Clock circuit, 55 ... System bus , B1 to b4 ... movie bookmark, c1 ... movie playback counter, M1 to M7 ... movie file, m1 to m4 ... movie playback section, S1, S2 ... still image file, s1 ... still picture playback section, 100 ... digital still camera, 200 ... Index system

Claims (11)

A display unit for displaying moving images or still images;
An operation unit for selecting the moving image or the still image to be reproduced;
Based on an instruction from the operation unit, set a video bookmark that indicates a specific scene to be played by the video,
At the time of slide show reproduction , the moving image is displayed on the display unit for a predetermined time from the still image selected by the operation unit, the first scene of the moving image selected by the operation unit, and the scene specified by the moving image bookmark . And a control unit. The display device according to claim 1 ,
The control unit displays the moving image by going back a predetermined time from the scene specified by the moving image bookmark. The display device according to claim 2 , wherein
The said control part displays the said moving image from the said retroactive scene to the last scene of the said moving image. The display device according to claim 3 , wherein
The operation unit has a function of performing a feed operation or a return operation,
When the moving operation is performed when a moving image or a still image is displayed on the control unit, the moving image or the still image to be displayed is switched in the order of the shooting date and time. A display device that switches images. The display device according to claim 1 or 4 ,
When the second video bookmark different from the video bookmark is set within a predetermined time displayed from the scene specified by the video bookmark, the control unit is predetermined from the scene specified by the second video bookmark. A display device that continues to display only for hours. The display device according to claim 1 or 4 ,
The control unit changes a display time of the moving image according to a length of an imaging time of the moving image during slide show reproduction. The display device according to claim 6 , wherein
The control unit controls the display time of the moving image to be longer when the imaging time of the moving image is long during slide show reproduction. The display device according to claim 1 or 4 ,
The control unit changes a display time for each moving image bookmark based on the number of moving image bookmarks of moving images included in the slide show and the total display time of the slide show during slide show reproduction. The display device according to claim 1 or 4 ,
When the video bookmark is frequently set within the predetermined time, the control unit sets the video display time short, and when the video bookmark is not frequently set within the predetermined time, the control unit displays the video display time. Set the display length longer. Display a video or still image,
Select the video or still image to play,
Based on an instruction from the operation unit that selects the moving image or still image to be played, set a moving image bookmark that indicates a specific scene to be played by the moving image
The slide show reproduction, the still picture selected by the operation unit, the leading scenes of the moving image selected by the operation section, displaying the video on a predetermined time not a One Table radical 113 from the indicated scene by the video bookmark Display method. Procedure for displaying video or still image,
A procedure for selecting the moving image or still image to be reproduced;
A procedure for setting a video bookmark that indicates a specific scene to be played back based on an instruction from the operation unit that selects the video or still image to be played back,
The slide show reproduction, the still picture selected by the operation unit, the leading scenes of the moving image selected by the operation section, displaying the video on a predetermined time not a One Table radical 113 from the indicated scene by the video bookmark A program that causes a computer to execute the procedure to be executed.

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