JP2008011419A - Recording device and control method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the number of displays from increasing simply on an index screen even if the number of moving picture data recorded on a recording medium exceeds a prescribed number. <P>SOLUTION: When the number of moving picture data recorded in the recording medium exceeds the prescribed number, a form for displaying the representative image of the moving picture data on a display is changed, thus preventing the total number of pages of the index screen from increasing simply even if the number of photographing chapters exceeds the prescribed number, and hence improving retrievability for displaying a convenient index screen. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a recording apparatus and a control method for the recording apparatus, and more particularly to a technique suitable for use in displaying a thumbnail for selecting a scene during reproduction.

  Conventionally, a disc video camera that records and reproduces an image on an optical disc such as a DVD is known. This type of disc video camera generates a list screen of representative images (thumbnail images) of each scene when playing back images recorded on the disc. And it is common that a user can select the representative image of a desired scene (for example, refer patent document 1).

  In the DVD video standard, it is possible to record a maximum of 99 title images per disc, and it is possible to record a maximum of 99 chapter images for each title.

JP 2005-079823 A

  As described above, when images of a maximum of 9801 (99 × 99) scenes (chapter) are recorded per disc, a maximum of 9801 thumbnails are displayed on the thumbnail list screen displayed during playback.

  Since the size of a display device such as a liquid crystal panel provided in the video camera body is about several inches, the number of thumbnail images that can be displayed on one screen is at most about several. For this reason, when there are many recording scenes, all the thumbnails cannot be displayed on one screen, and are displayed over a plurality of pages, resulting in a problem that the searchability is very poor.

Also, when creating a DVD-Video standard menu, it was necessary to free up that much capacity.
In view of the above-described problems, the present invention can prevent the number of index screens from being simply increased even when the number of moving image data recorded on a recording medium exceeds a predetermined number. The purpose is to do.

In the recording apparatus of the present invention, when the number of moving image data recorded on the recording medium exceeds a predetermined number, the form of displaying the representative image of the moving image data on the display device is changed. It is characterized by that.
According to another aspect of the recording apparatus of the present invention, recording means for recording moving image data on a recording medium, and management means for managing moving image data recorded on the recording medium in accordance with a first management unit. Representative image generation means for generating a representative image of moving image data recorded on the recording medium and displaying it on a display device, detection means for detecting the number of the first management units in the recording medium, When the number of the first management units detected by the detection means is equal to or less than a predetermined number, a representative image for each first management unit is displayed on the display device, and the first management unit Control means for controlling the representative image generating means to display the representative image on the display device in accordance with a predetermined rule when the number is larger than the predetermined number. .

The control method of the recording apparatus of the present invention changes the form in which the representative image of the moving image data is displayed on the display device when the number of moving image data recorded on the recording medium exceeds a predetermined number. It is characterized by doing so.
Another aspect of the control method of the recording apparatus of the present invention is that a recording step of recording moving image data on a recording medium, and the moving image data recorded on the recording medium are managed according to a first management unit. A managing step for generating a representative image of moving image data recorded on the recording medium and displaying the representative image on a display device, and a detecting step for detecting the number of the first management units in the recording medium When the number of the first management units detected in the detection step is equal to or smaller than a predetermined number, a representative image for each first management unit is displayed on the display device, and the first management unit is displayed. A control step of controlling the representative image generation step so as to display the representative image on the display device according to a predetermined rule when the number of management units is larger than the predetermined number. Characteristic To.

According to the program of the present invention, when the number of moving image data recorded on a recording medium exceeds a predetermined number, the recording mode is changed so that a representative image of the moving image data is displayed on a display device. A computer control method is executed by the computer.
Another feature of the program of the present invention is that a recording step of recording moving image data on a recording medium, a management step of managing moving image data recorded on the recording medium according to a first management unit, A representative image generation step of generating a representative image of the moving image data recorded on the recording medium and displaying the representative image on a display device, a detection step of detecting the number of the first management units in the recording medium, and the detection If the number of the first management units detected in the process is less than or equal to a predetermined number, a representative image for each first management unit is displayed on the display device, and the number of the first management units And a control step for controlling the representative image generation step so as to display the representative image on the display device according to a predetermined rule when the number is larger than the predetermined number. And characterized by causing a computer to execute.

According to the present invention, in an index screen in which each scene is arranged, it is possible to automatically reduce the number of pages even when the number of recordings is large, and an index screen that does not impair searchability can be displayed. it can.
In addition, according to another feature of the present invention, since the representative image for a plurality of chapters is superimposed with a bitmap that informs the user or information is displayed, visibility can be improved.
Further, according to another feature of the present invention, when a representative image for a plurality of chapters is selected, an index screen on which representative images for the corresponding chapters are further displayed is displayed, thereby further improving usability.
According to another feature of the present invention, even when a DVD-Video standard menu is created, it can be accommodated within a predetermined number of pages.

(First embodiment)
"Description of video camera"
FIG. 1 is a diagram illustrating an internal configuration of the video camera according to the present embodiment.
In FIG. 1, reference numeral 130 denotes a lens unit, which has a function of correcting an imaging position moved by movement of a fixed lens group for focusing, a variable power lens group, a stop, and a variable power lens group, and a function of performing focus adjustment. It is comprised by the correction lens group which also has. The lens unit 130 finally forms a subject image on an imaging surface of a CCD 131 described later. Reference numeral 131 denotes a CCD (charge coupled device), which converts light into electric charge and generates an imaging signal.

  Reference numeral 132 denotes a camera signal processing unit, which performs predetermined processing on an analog imaging signal to digitize it, and outputs digital image data. It also has special functions such as fade and reduction. These are collectively referred to as a camera unit. The camera signal processing unit 132 is described as “A / D” in the drawing.

  Although not shown in FIG. 1, a variable power lens group, an actuator such as a diaphragm, a sensor for correcting camera shake (for example, an angular velocity sensor), and the same correcting means (shift lens, etc.) are provided. Reference numeral 135 denotes a camera control microcomputer which controls the camera unit according to the control of the microcomputer 110 described later.

  Reference numeral 133 denotes a microphone unit. The microphone unit 133 is a device arranged to collect sound during shooting, and has functions such as predetermined amplification and band limitation. An A / D processing unit 134 receives the output of the microphone unit 133 and outputs digital audio data.

  Reference numeral 110 denotes a microcomputer that controls the entire system. Although not shown in the present embodiment, the microcomputer 110 has a nonvolatile memory (ROM) for storing a program. Further, it has at least a volatile memory (RAM) serving as a work area, an external bus for data transfer with other hardware and access to a control register, a timer for measuring time, and the like.

  Reference numeral 103 denotes a bus. Each block is connected to the bus 103, and is a transmission path for transferring data according to the control of the microcomputer 110. An encoder unit 102 receives digital image data and digital audio data under the control of the microcomputer 110, and compresses the digital image data and the digital audio data using the MPEG (Moving Picture Experts Group) 2 method. Further, the compressed video data is generated by multiplexing in time series. In addition, the encoder unit 102 has a function of notifying the microcomputer 110 of information necessary for converting the data position and the frame position, for example.

  A control circuit 104 has an interface between an encoder unit 102 and a memory 106, an optical disk 120, and a decoder unit 108, which will be described later, and controls data transfer under the control of the microcomputer 110. Reference numeral 106 denotes a memory, and each block can be used for work.

  Reference numeral 120 denotes an optical disk. The control circuit 104 has an interface with the microcomputer 110 and the memory 106 connected to the bus 103 and an interface with the optical disc 120. Then, conversion for accessing the control register of the optical disk 120 from the microcomputer 110 or the like is performed.

  The optical disk 120 shown in FIG. 1 has not only the medium itself but also a mechanical deck including a head and a motor, a control circuit for controlling them, and an interface (for example, ATAPI I / F) that can be connected to the control circuit 104. It is a unit that can read and write data on media.

  The control circuit 104 has a so-called direct memory access (DMA) function for automatically transferring read or write data by designating the start address and data amount of the memory 106 and the start sector to be written to the optical disc 120.

  Reference numeral 108 denotes a decoder unit that sequentially reads compressed video data and compressed still image data from the address of the memory 106 designated by the microcomputer 110. For example, it is converted into a digital video signal such as ITU-R BT.656 (CCIR656) and a digital audio signal and output. When reproducing compressed still image data, it has been devised so that reduction processing can be performed if necessary.

  Reference numeral 107 denotes an audio output unit, and 109 denotes a video output unit. The video output unit 109 and the audio output unit 107 are blocks for converting the digital video signal and digital audio signal converted by the decoder unit 108 into analog signals and outputting them to the outside, and are connected to a television receiver or the like. The Reference numeral 116 denotes a speaker unit for receiving the above-described digital audio signal and reproducing the audio.

  Reference numeral 113 denotes an on-screen display (OSD) unit that superimposes information such as various setting menus, titles, and times on the video output. The OSD unit 113 also has a function of capturing a digital video signal input from the decoder unit 108, performing a reduction process, and superimposing it on an arbitrary position.

  Reference numeral 112 denotes an operation switch group, 162 denotes a trigger switch, and 163 denotes a mode dial. In either case, the microcomputer 110 determines and operates a signal input by a user operation. A mode dial 163 is a rotary switch, and selects a camera mode for shooting a moving image, an off mode for shutting off the main power supply, and a playback mode for reproducing a shot image. Reference numeral 150 denotes an EVF, 151 denotes a liquid crystal panel, and 152 denotes a panel open / close detection switch.

  In the camera mode, the microcomputer 110 recognizes the trigger switch 162 as a moving image recording start request or a stop request. Reference numeral 115 denotes a real-time clock for transmitting calendar and time information to the microcomputer 110. The initial value and the count start command are input by the user through the operation switch group 112 and given through the microcomputer 110. This is used for time stamp information given to recorded content.

  The microcomputer 110 is equipped with software for handling a predetermined file system, and data is read from and written to the optical disc 120 in accordance with this file system.

"Recording operation"
Next, the flow of a moving image recording operation will be described. First, when the power is turned on, the microcomputer 110 searches the recordable (empty) area from the optical disk 120 according to the file system described above.

  At this time, the recordable capacity is calculated, and the recordable time is calculated from the recordable capacity and the recording mode. Thereafter, during recording, the decrease in the recordable capacity is monitored, and the recordable time is periodically updated. The microcomputer 110 constantly detects the state of the switch and monitors the user's operation. Hereinafter, it is assumed that the user's operation is transmitted to the microcomputer 110 through a user interface such as the operation switch group 112 unless otherwise noted.

Next, when the user generates a recording start request, the microcomputer 110 controls each block in order to start recording of camera images and audio.
First, the encoder unit 102 is controlled to start MPEG2 encoding processing and store the compressed video data via the control circuit 104 so that a predetermined address in the memory 106 is accumulated at the head. Each time a predetermined amount of data is accumulated, the encoder unit 102 notifies the microcomputer 110 by means such as interruption.

  The microcomputer 110 receives this notification and notifies the control circuit 104 of the head address to be stored next. Further, the microcomputer 110 issues a command to the optical disc 120 and the control circuit 104 so as to write the compressed video data stored in the memory 106 to the optical disc 120.

  At this time, the area written to the optical disc 120 is a recordable (empty) area searched according to the file system. A series of processes from the encoding process to writing to the optical disk 120 is repeated until a recording stop request is generated. In this embodiment, a series of moving image and audio data recorded between a recording start instruction and a recording stop instruction is managed as one chapter. One or more chapters are managed as titles.

  In the present embodiment, for example, a new title is generated when the number of chapters in the title reaches 99 or when a disc is ejected. FIG. 2 is a diagram showing the state of chapters and titles.

  Also, management information for such management is generated and recorded as a video management file on the disc. In addition, the shooting start date and time of each chapter is recorded on at least the disc. This shooting start date and time is recorded as metadata in a video management file or compressed video data.

"Playback operation"
Next, the playback operation of the video camera will be described.
A scene (chapter) to be reproduced is selected by operating the operation switch group 112 by the user. A UI that starts reproduction by displaying a representative image (thumbnail) for each scene (hereinafter referred to as an index screen), moving the pointer to a desired content, and determining it is common.

  The microcomputer 110 starts reading the digital video data of the scene determined as described above from the optical disc 120. Specifically, a command is issued to the control circuit 104 so that it is read from the optical disc 120 and stored in the memory 106, contrary to the recording. At this time, the microcomputer 110 designates the reading start sector of the optical disc 120, the writing start address of the memory 106, and the data amount as in the recording.

  Next, the microcomputer 110 issues a command to the decoder unit 108 so as to decode the digital video data stored in the memory 106. A series of processes is repeatedly executed so that the digital video data to be decoded by the decoder unit 108 is not interrupted until a user operation such as the end of content, stop, or pause is applied.

About the index screen
FIG. 5 is an example of an index screen. In FIG. 5, reference numeral 501 denotes an index screen that displays a maximum of six representative images (thumbnail) per page. The number of thumbnail images per page is not limited to this, and it may be N screens (N is an integer equal to or greater than 1). Reference numerals 502, 503, 504, 505, 506, and 507 are representative images, which correspond to scenes.

  Reference numeral 511 denotes a cursor, which is a display for the user to select a representative image. Reference numeral 512 denotes scene information, which is an information display of a scene corresponding to the representative image indicated by the cursor 511. In the present embodiment, the recording start date and time is displayed. In the case of FIG. 5, the scene information corresponds to the representative image 504, and indicates that the scene has started shooting at 15:20 on December 15, 2005. Although not shown, the length (time) of other scenes may also be displayed.

  FIG. 4 is a diagram for explaining an image of a photographed scene. For example, it represents that three scenes 12 / 15_1, 12 / 15_2, and 12 / 15_3 were photographed on December 15. FIG. 5 shows the index screen at the beginning of the recorded disc as shown in FIG. FIG. 5 displays representative images corresponding to six scenes from the top of FIG.

“Features of this embodiment”
FIG. 5 is an index screen for displaying representative images for all scenes, and displays representative images corresponding to the scene of G401 in FIG.
On the other hand, FIG. 6 is an index screen displaying a representative image of the first scene for each shooting date and time, and displays a representative image of the scene of G402 in FIG.

  In FIG. 6, reference numeral 612 denotes a multi-scene icon, which is displayed when the representative image on which the icon 612 is displayed is composed of a plurality of scenes. In the example of FIG. 4, since a plurality of scenes are shot on a shooting date other than December 19, when G402 is set as a representative image, it is displayed on all members other than the representative image 505 as shown in FIG.

  Reference numeral 613 denotes scene information, which is a scene information display corresponding to the representative image on which the cursor 511 is hit. In this embodiment, the recording start date and time is displayed. In the case of FIG. 6, the scene information corresponding to the representative image 502 is displayed. The difference from FIG. 4 is that in the case of a plurality of scenes, the recording start date and time of the first and last scenes are displayed. The first shooting on December 15, 2005 is 10:17 and the last shooting is 15:20 (see FIG. 8).

  613_a is another display example, and the number of scenes is displayed in the last parenthesis. In this way, the number of scenes may be displayed. Note that a representative image of one scene in which the multiple scene icon 612 is not displayed is the same display as in FIG.

In the present embodiment, processing according to the flowchart of FIG. 7 is performed to switch the display processing of the index screen.
When the process is started in step S701, it is determined in next step S702 whether the total number of chapters is divided by the number of display representative images per page, that is, whether the total number of pages exceeds a predetermined number of pages. If the result of this determination is positive, the process proceeds to step S703, and if not, the process proceeds to step S704.

  In the present embodiment, since the video camera displays six representative images per page, for example, when “predetermined number of pages P = 10”, when the number of chapters exceeds 60, the process proceeds to step S703. Note that the page number P may be other than 10 and may be an integer of 1 or more.

  The process performed in step S703 is a thinned page display process, which is a process of arranging and displaying only representative images for chapters selected according to a predetermined rule as shown in FIG.

  The process performed in step S704 is an all page display process, which is a process of displaying representative images for all chapters.

  As described above, according to the present embodiment, it is possible to prevent the total number of pages on the index screen from simply increasing even when the number of shooting chapters exceeds a predetermined number. Thereby, searchability can be improved and a user-friendly index screen can be displayed.

Further, when “shooting days> (predetermined number of pages × 6)”, thinning may be further performed.
In the present embodiment, the method of thinning out has been described so as to be grouped for each shooting date, but may be divided on the condition that the shooting interval is a predetermined time away.

<Second Embodiment>
In the first embodiment described above, it has been described that the compressed video data recorded in one shooting is managed as a chapter. In this embodiment, it is assumed that a management unit called a title having one or more chapters is further provided, and will be described below with reference to FIGS.

  One title can have up to a predetermined number of chapters. When at least the predetermined number of chapters are created in the currently recorded title, the next title is created, and chapters are created in the title. This will be described with reference to FIG.

  In FIG. 2, the predetermined number of chapters is set to “4” in order to simplify the description. However, the number of chapters is not limited thereto, and may be “99”, for example. In FIG. 2, 201 and 202 are titles. Reference numerals 201_1, 201_2, 201_3, and 201_4 are chapters. The chapter 201_1 is recorded in the first shooting. It is a figure explaining the flow that the addition to the title 201 is stopped when the chapter 201_4 having four chapters in one title is recorded, the title 202 is created at the next recording, and the chapter is recorded.

  FIG. 3 is a diagram for explaining the structure of moving image management information for managing at least titles and chapters. Note that only items necessary for the present embodiment are described here, and various other information is actually recorded.

  In FIG. 3, reference numeral 301 denotes an image of moving image management information, which is, for example, a single file. Reference numerals 302 and 303 denote title information, which are created corresponding to the titles. Reference numerals 304, 305, 306, 307, and 308 denote chapter information, which are also created corresponding to the chapters. FIG. 3 corresponds to FIG. 2 described above.

In the present embodiment, processing according to the flowchart of FIG. 9 is performed to switch the display processing of the index screen.
When the process is started in step S901, it is determined in next step S902 whether the total number of chapters is divided by the number of display representative images per page, that is, whether the total number of pages exceeds a predetermined number of pages. If the result of this determination is positive, the process proceeds to step S903, and if not, the process proceeds to step S904. Since the system displays six representative images per page as in the first embodiment, for example, when “predetermined number of pages = 10”, the process proceeds to step S903 when the number of chapters exceeds 60.

The process performed in step S903 is a title unit page display process, which is a process of displaying one representative image for the title.
The process performed in step S904 is a chapter unit display process, which is a process of displaying representative images for all chapters.

  According to the present embodiment, even if the number of chapters exceeds a predetermined number, it is possible to prevent the total number of pages on the index screen from simply increasing by switching from chapter units to title unit representative image display. Is possible. As a result, searchability is improved and an easy-to-use index screen can be displayed.

<Third Embodiment>
FIG. 10 is a diagram illustrating an example of a 9 thumbnail index screen. So far, it has been described as a system that displays six thumbnails on one screen. In this embodiment, an index screen (hereinafter referred to as a 6 thumbnail index screen) for displaying 6 thumbnails and a 9 thumbnail index screen are displayed.

In the present embodiment, processing according to the flowchart of FIG. 11 is performed to switch the display processing of the index screen.
When the process is started in step S1101, in the next step S1102, it is determined whether the total number of chapters is divided by 6, that is, the total number of pages exceeds the predetermined number of pages when displayed on the 6 thumbnail index screen. . If the result of this determination is positive, the process proceeds to step S1103, and if not, the process proceeds to step S1104.

The processing performed in step S1103 is nine thumbnail page display processing, which is processing for displaying nine representative images per page as shown in FIG.
The process performed in step S1104 is a 6 thumbnail page display process, which is a process of displaying 6 representative images per page.

  By executing such processing, when the number of chapters exceeds the predetermined number of pages in the 6 thumbnail index screen, the screen is switched to the 9 thumbnail index screen. By doing so, it is possible to prevent the total number of pages on the index screen from simply increasing.

  Further, a second predetermined number of pages may be set to switch to the 12 thumbnail index screen. By performing such switching, the result searchability can be improved, and an easy-to-use index screen can be displayed.

<Fourth embodiment>
It is a video camera that records in a playback compatible format with a DVD-Video player, and may be applied to a menu screen created when so-called finalization processing is executed.
FIG. 12 is a diagram for explaining user data on the optical disc.
In FIG. 12, an area between “Lead-in” and “Lead-out” is a user data area, in which file system information, video data, and the like are written.

  1202 in FIG. 12 is a VMG (Video Manager) area. Here, the entire DVD-Video management information and information for the menu described above are stored. This menu screen is data for configuring the index screen described in the first embodiment, and is generated and recorded on the disc during finalization processing. A fixed capacity is reserved as a reserved area until finalization processing is executed.

  This fixed capacity is a capacity sufficient to record a menu screen for 100 pages, for example. Reference numeral 1203 denotes “VTS (Video Title Set) 01”, which is a title recorded first. VTS can take from “VTS01” to “VTS99”, and a maximum of 99 titles can be recorded.

  Each title can have up to 99 chapters. Therefore, since a chapter is created every time a picture is taken, it is possible to record up to “9801 scenes”. When a menu (index screen) for selecting a chapter is generated, there are 6 thumbnails per page. There are 1634 pages. There is no problem if the above-mentioned VMG reserved area is secured in accordance with this numerical value, but a wasteful area is created if there is almost no situation in actual use.

In the present embodiment, processing according to the flowchart of FIG. 13 is performed, and menu screen generation processing is switched.
When the processing is started in step S1301, in the next step S1302, a value obtained by dividing the total number of chapters by 6 that is the number of display representative images per page, that is, 100 pages in which the total number of pages is the reserved area limit. It is determined whether or not it exceeds. If the result of this determination is positive, the process proceeds to step S1303. If not, the process proceeds to step S1304.

  The process performed in step S1303 is a title unit menu screen generation process, which generates a representative image for each title and generates a menu screen.

  The process performed in step S1304 is a chapter unit menu screen generation process, which is a process of generating representative images for all chapters and generating a menu screen. Here, the generation method has been described so as to be switched between the chapter unit and the title unit. However, instead of the title unit, the generation method may be performed for each shooting date and time as in the first embodiment.

  In this way, by switching the menu screen generation method within the range that can be recorded in the reserve area for VMG, it is possible to achieve both the recording efficiency and the generation of the menu screen that ensures searchability.

<Fifth Embodiment>
In the first embodiment described above, the method of collecting representative images for each shooting date in order to reduce the number of pages has been described. In contrast, in the present embodiment, a video camera that displays a representative image of a corresponding chapter when a representative image composed of a plurality of chapters is selected will be described.

In the present embodiment, when a representative image is selected and operated, processing according to the flowchart of FIG. 15 is performed, and processing to be executed next is switched.
In step S1502, it is determined whether the selected representative image is for a plurality of chapters. If positive, the process proceeds to step S1503. If not, the process proceeds to step S1504.

  When the processing is started in step S1501, the next step S1503 is a chapter unit index display, in which an index screen composed of representative images for each chapter shot on the shooting date of the selected representative image is displayed. For example, when the representative image 511 is selected in 501_A of FIG. 14, 501_B is displayed by this step.

  Step S1504 is a reproduction start process, and reproduction of the selected chapter is executed. This is a case where the representative image 505 of 501_A and each representative image of 501_B in FIG. 14 are selected.

  According to the present embodiment, the index screen can be hierarchized automatically as necessary, and the searchability can be further improved.

(Other embodiments according to the present invention)
Each means constituting the recording apparatus and each step of the control method of the recording apparatus in the embodiment of the present invention described above can be realized by operating a program stored in a RAM or ROM of a computer. This program and a computer-readable recording medium recording the program are included in the present invention.

  In addition, the present invention can be implemented as, for example, a system, apparatus, method, program, storage medium, or the like. Specifically, the present invention may be applied to a system including a plurality of devices. The present invention may be applied to an apparatus composed of a single device.

  In the present invention, a software program that realizes the functions of the above-described embodiments (in the embodiment, programs corresponding to the flowcharts shown in FIGS. Supply directly or remotely. In addition, this includes a case where the system or the computer of the apparatus is also achieved by reading and executing the supplied program code.

  Accordingly, since the functions of the present invention are implemented by computer, the program code installed in the computer also implements the present invention. In other words, the present invention includes a computer program itself for realizing the functional processing of the present invention.

  In that case, as long as it has the function of a program, it may be in the form of object code, a program executed by an interpreter, script data supplied to the OS, or the like.

  Examples of the recording medium for supplying the program include a floppy (registered trademark) disk, hard disk, optical disk, magneto-optical disk, MO, CD-ROM, CD-R, and CD-RW. In addition, there are magnetic tape, nonvolatile memory card, ROM, DVD (DVD-ROM, DVD-R), and the like.

  As another program supply method, a browser on a client computer is used to connect to an Internet home page. The computer program itself of the present invention or a compressed file including an automatic installation function can be downloaded from the homepage by downloading it to a recording medium such as a hard disk.

  It can also be realized by dividing the program code constituting the program of the present invention into a plurality of files and downloading each file from a different homepage. That is, a WWW server that allows a plurality of users to download a program file for realizing the functional processing of the present invention on a computer is also included in the present invention.

  In addition, the program of the present invention is encrypted, stored in a storage medium such as a CD-ROM, distributed to users, and key information for decryption is downloaded from a homepage via the Internet to users who have cleared predetermined conditions. Let It is also possible to execute the encrypted program by using the downloaded key information and install the program on a computer.

  Further, the functions of the above-described embodiments are realized by the computer executing the read program. In addition, based on the instructions of the program, an OS or the like running on the computer performs part or all of the actual processing, and the functions of the above-described embodiments can also be realized by the processing.

  Further, the program read from the recording medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. Thereafter, the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instructions of the program, and the functions of the above-described embodiments are realized by the processing.

1 is a block diagram illustrating a configuration example of a video camera according to an embodiment of the present invention. It is a figure explaining a title and a chapter. It is a figure explaining an example of animation management information. It is the figure which imaged the chapter for every photography day. It is a figure which shows the example of a display of an index screen. It is a figure which shows the example of a display of the index screen used as the characteristic in 1st Embodiment. It is a flowchart explaining the characteristic of 1st Embodiment. It is a figure explaining the example which displays the recording start date and time of the first and last scene in the case of a plurality of scenes. It is a flowchart explaining the characteristic of 2nd Embodiment. It is a figure which shows the example of a display of the index screen which arranged nine representative images. It is a flowchart explaining the characteristic of 3rd Embodiment. It is a figure explaining the user data area recorded on a disc. It is a flowchart explaining the characteristic of 4th Embodiment. It is a figure explaining hierarchization of an index screen. It is a flowchart explaining the characteristic of 5th Embodiment.

Explanation of symbols

102 Encoder unit 103 Bus 104 Control circuit 106 Memory 107 Audio output unit 108 Decoder unit 109 Video output unit 110 Microcomputer 112 Operation switch group 113 OSD (On-screen display unit)
115 Real-time clock 120 Optical disk 130 Lens unit 131 CCD (charge coupled device)
132 Camera Signal Processing Unit 133 Microphone Unit 134 A / D Processing Unit 135 Camera Control Microcomputer 150 EVF
151 Liquid crystal panel 152 Panel open / close detection switch 162 Trigger switch 163 Mode dial

Claims (16)

  When the number of moving image data recorded on a recording medium exceeds a predetermined number, the recording apparatus is configured to change the display form of the representative image of the moving image data on the display device. . Recording means for recording moving image data on a recording medium;
Management means for managing moving image data recorded on the recording medium according to a first management unit;
Representative image generation means for generating a representative image of moving image data recorded on the recording medium and displaying the representative image on a display device;
Detecting means for detecting the number of the first management units in the recording medium;
When the number of the first management units detected by the detection means is equal to or less than a predetermined number, a representative image for each first management unit is displayed on the display device, and the first management unit is displayed. Control means for controlling the representative image generating means so as to display the representative image on the display device according to a predetermined rule when the number of images is larger than the predetermined number. Recording device. The representative image generating means generates representative image data composed of P pages (P is an integer of 1 or more) having N representative images per page (N is an integer of 1 or more),
The control means displays the representative image on the display device according to the predetermined rule when the number of the first management units detected by the detection means is greater than N × P. The recording apparatus according to claim 2, wherein the representative image generating unit is controlled.   The recording apparatus according to claim 2, wherein the predetermined rule is a rule for selecting a representative image for each shooting date.   The recording apparatus according to claim 2, wherein the predetermined rule is a rule for selecting a representative image from a management unit in which a shooting date and time between the first management units is more than a predetermined distance.   The recording apparatus according to claim 2, wherein the predetermined rule is a rule for increasing the number of representative images displayed per page.   The management means further manages the image data recorded on the recording medium in a second management unit including one or more first management units, and the predetermined rule is the second rule. The recording apparatus according to claim 2, wherein the recording apparatus is a rule for displaying a representative image for each management unit. Holding means for holding bitmap data for notifying that the representative image is a representative image of a second management unit including a plurality of the first management units;
Bitmap further superimposing means for superimposing the bitmap held in the holding means on the index screen,
The recording apparatus according to claim 7, wherein the bitmap is superimposed on a representative image of a second management unit including a plurality of the first management units. Selecting means for selecting an arbitrary representative image from a plurality of representative images displayed on the display device;
Replaying means for replaying moving image data corresponding to the representative image selected by the selecting means from the recording medium;
The representative image generation means is further selected when a representative image of a second management unit including the plurality of first management units is selected from the plurality of representative images displayed on the display device. A representative image for each first management unit included in the second management unit corresponding to the representative image is displayed, and the display means is a representative for each first management unit included in the second management unit. The recording apparatus according to claim 8, further displaying an image on a display device. The representative image generating means displays the recording date and time information of moving image data corresponding to the representative image on a display device;
When a representative image of a second management unit including the plurality of first management units is selected, the first first management unit and the last first management unit included in the second management unit The recording apparatus according to claim 9, wherein the recording date and time of the moving image data is displayed on a display device.   The recording apparatus according to claim 1, wherein the recording medium is an optical disk, and has a finalization processing unit including at least processing for recording representative image data indicating the representative image.   When the number of moving image data recorded on a recording medium exceeds a predetermined number, the recording apparatus is configured to change the display form of the representative image of the moving image data on the display device. Control method. A recording step of recording moving image data on a recording medium;
A management step of managing moving image data recorded on the recording medium according to a first management unit;
A representative image generation step of generating a representative image of the moving image data recorded on the recording medium and displaying the representative image on a display device;
A detecting step of detecting the number of the first management units in the recording medium;
When the number of the first management units detected in the detection step is equal to or less than a predetermined number, a representative image for each first management unit is displayed on the display device, and the first management unit is displayed. And a control step for controlling the representative image generation step so as to display the representative image on the display device in accordance with a predetermined rule when the number is greater than the predetermined number. Method for controlling a recording apparatus.   A control method for a recording apparatus in which the display mode of a representative image of the moving image data is changed on a display device when the number of moving image data recorded on the recording medium exceeds a predetermined number. A program characterized by being executed. A recording step of recording moving image data on a recording medium;
A management step of managing moving image data recorded on the recording medium according to a first management unit;
A representative image generation step of generating a representative image of the moving image data recorded on the recording medium and displaying the representative image on a display device;
A detecting step of detecting the number of the first management units in the recording medium;
When the number of the first management units detected in the detection step is equal to or less than a predetermined number, a representative image for each first management unit is displayed on the display device, and the first management unit is displayed. And a control step for controlling the representative image generation step so as to display the representative image on the display device according to a predetermined rule when the number of the image is greater than the predetermined number. A program for causing a computer to execute the method.   16. A computer-readable recording medium on which the program according to claim 14 or 15 is recorded.

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