JP2006180101A - Moving video recording apparatus and method of thumbnail displaying - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a moving video recording apparatus which can display a thumbnail at a high speed when the thumbnail is created and displayed from a moving video in order to perform the retrieving of the moving video currently recorded on recording media, such as an optical disk, or a video tape, etc., and, moreover, which can display the thumbnail even if the recording medium is not equipped in the apparatus; and to provide a method of thumbnail displaying which displays the thumbnail using the moving video recording apparatus. <P>SOLUTION: The main part of the apparatus is equipped with a thumbnail memory 21 for adding identification information to the recording medium, and associating and storing the identification information and the thumbnail. The thumbnail is created at the time of recording the moving video and is stored in the thumbnail memory 21. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a moving image recording apparatus such as a video camera or a video recorder capable of recording a moving image on a removable recording medium and creating and displaying a thumbnail from the moving image, and also uses the moving image recording apparatus to record a moving image. The present invention relates to a thumbnail display method for displaying thumbnails.

  In recent years, video recording devices such as video cameras that can capture moving images and video recorders that can record TV programs have become widespread. In a moving image recording apparatus, there are a wide variety of recording media used for recording moving images, such as video tapes, optical disks such as DVDs and Blu-ray disks, memory cards using semiconductor elements, and magnetic disks represented by hard disks. is doing.

  When a recording medium such as a video tape, an optical disk, a memory card, or a removable hard disk is used, there is an advantage that the recording medium can be exchanged. The recording capacities of these recording media are rapidly increasing, and moving picture recordable time tends to increase with the improvement of moving picture compression technology. Increasing the recording time makes it possible to record a large number of moving images on one recording medium, and it becomes difficult for the user to search for a desired moving image from a large number of moving images recorded on the recording medium. .

As one of the means to assist the user, each optical disk is identified using the disk ID or management information recorded on the optical disk, and the reproduction condition and the reproduction stop position are stored for each optical disk. When an optical disk is exchanged in the middle of the process and returned to the original optical disk again, an optical disk playback apparatus has been proposed that can resume playback from the position at which playback was interrupted (see Patent Document 1). This function eliminates the need for the user to perform an operation such as searching for a moving image to be reproduced and searching for a position at which the previous reproduction was stopped when the reproduction is resumed.
JP 2001-312851 A

  However, in the optical disk playback device disclosed in Patent Document 1, it is not necessary to search for the target video only when playback is resumed from the position where playback was stopped, and the burden of video search for the user is reduced. It is not enough in terms of mitigating.

  On the other hand, a moving image recording apparatus having a so-called thumbnail display function that creates a still image for search from a moving image recorded on a recording medium and displays the created still images side by side as a list has been put into practical use. The user estimates the content of the moving image from the displayed thumbnails, selects one thumbnail using the cursor key, and performs processing such as reproduction or editing of the moving image. The ability to display thumbnails allows users to search for videos recorded on recording media based on visual information, so it is easy to find the desired video from many videos and use it. When a person performs processing such as reproduction or editing of a moving image, the burden of searching for the moving image can be reduced. For the purpose of reducing the burden of video search, it is desirable to have a function for displaying thumbnails.

  Conventionally, however, thumbnail information for displaying thumbnails is recorded on a recording medium, and every time the user exchanges the recording medium, all thumbnails are read and displayed. In this configuration, when a recording medium that requires time to read such as a video tape or an optical disk is used, it takes a time from several seconds to several tens of seconds to read all the thumbnails, so it takes time to display the thumbnails. There was a problem. In addition, since the thumbnail cannot be displayed unless the recording medium is attached to the moving picture recording apparatus main body, the recording medium must be exchanged many times in order to find the target moving picture from a plurality of recording media. The problem was that it took a very long time.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a memory for recording identification information on a recording medium and storing the recorded identification information and a thumbnail in association with each other. By reading the identification information from the recording medium and reading the thumbnail associated with the identification information from the memory, for example, when the recording medium is a low-speed read-out device such as a video tape or an optical disk, the thumbnail is stored. An object of the present invention is to provide a moving image recording apparatus capable of displaying thumbnails at a high speed when the memory is constituted by a high-speed reading device such as a semiconductor memory.

  Another object of the present invention is to provide detection means for detecting whether or not identification information is recorded on the recording medium when the recording medium is mounted on the mounting portion, and the recording medium is already identified. An object of the present invention is to provide a moving picture recording apparatus capable of automatically displaying thumbnails by reading out thumbnails associated with identification information from a memory when information is recorded.

  Another object of the present invention is to provide a new recording structure in which the identification information recording means records the identification information when no identification information is recorded on the recording medium attached to the attachment portion. An object of the present invention is to provide a moving picture recording apparatus capable of automatically adding identification information when a medium is loaded.

  Another object of the present invention is that the identification information can be easily read out by having the identification information recording means record the identification information at a location where the recording medium is first read out. It is to provide a moving image recording apparatus.

  Another object of the present invention is to include a receiving unit that receives input of identification information of a recording medium, and a memory that stores the received identification information and a thumbnail in association with each other, and is associated with the received identification information. By reading the thumbnails from the memory, for example, when the recording medium is a low-speed reading device such as a video tape or an optical disk, the memory for storing the thumbnail is configured with a high-speed reading device such as a semiconductor memory. In this case, it is an object to provide a moving image recording apparatus that can display thumbnails at high speed and can display moving images by displaying thumbnails without attaching a recording medium to the apparatus main body.

  Another object of the present invention is to provide a moving image recording apparatus capable of receiving identification information for a recording medium from a user when the recording medium is mounted on a mounting portion.

  Another object of the present invention is to record or print on the surface of a recording medium using a moving image recording apparatus provided with a memory that stores the identification information added to the recording medium in association with the thumbnail. The identification information is added, the identification information and the thumbnail are associated and stored in the memory, and when the recording medium is mounted again, the identification information is input, and the thumbnail associated with the identification information is read from the memory. By displaying, for example, when the recording medium is a low-speed reading device such as a video tape or an optical disk, and the memory storing the thumbnail is configured with a high-speed reading device such as a semiconductor memory, the thumbnail is displayed at high speed. An object of the present invention is to provide a thumbnail display method that can be displayed.

  The moving image recording apparatus according to the present invention includes an acquisition unit that acquires a moving image, a mounting unit that mounts a recording medium, and a moving image recording unit that records the moving image acquired by the acquiring unit on a recording medium mounted on the mounting unit. In the moving picture recording apparatus, the creating means for creating a thumbnail based on the moving picture obtained by the obtaining means, the identification information recording means for recording the identification information on a recording medium attached to the attachment unit, and the creating means create The identification information recorded by the identification information recording means is associated with the memory, the identification information reading means for reading the identification information from the recording medium, and the identification information read by the identification information reading means. And display processing means for reading out thumbnails from the memory and performing processing relating to display.

  In the present invention, the identification information is recorded on the recording medium by the identification information recording means, the identification information is associated with the thumbnail and stored in the memory provided in the apparatus body, the identification information is read from the recording medium, and the read identification The thumbnails associated with the information are read from the memory and displayed. For example, when the recording medium is a low-speed reading device such as a video tape or an optical disk, the memory for storing the thumbnails is read from the semiconductor memory or the like at high speed. To make it possible to display thumbnails at high speed and make it easier for users to search for videos.

  The moving image recording apparatus according to the present invention further includes a detecting unit that detects whether or not identification information is recorded on the recording medium when the recording medium is mounted on the mounting unit, and the identification information is recorded by the detecting unit. If it is detected that the identification information is detected, the identification information reading means reads the identification information.

  In the present invention, when the recording medium is mounted on the mounting portion, the recording medium is provided with detecting means for detecting whether or not the identification information is recorded, and the identification information is already recorded on the recording medium. Reads out the thumbnail associated with the identification information from the memory so that the thumbnail can be automatically displayed when the recording medium is loaded.

  The moving image recording apparatus according to the present invention is characterized in that the identification information recording means records identification information when the detection means detects that identification information is not recorded on a recording medium. To do.

  In the present invention, when the identification information is not recorded on the recording medium attached to the attachment portion, the identification information recording means is configured to record the identification information, and automatically when a new recording medium is attached. Allow identification information to be added.

  The moving image recording apparatus according to the present invention is characterized in that the identification information recording means records identification information at a location where the identification information reading means of the recording medium first reads.

  In the present invention, the identification information recording means records the identification information at the first reading position of the recording medium, and the identification information is simply read out.

  The moving image recording apparatus according to the present invention includes an acquisition unit that acquires a moving image, a mounting unit that mounts the recording medium, and a moving image recording unit that records the moving image acquired by the acquiring unit on the recording medium mounted on the mounting unit. In the moving picture recording apparatus, the creating means for creating a thumbnail based on the moving picture obtained by the obtaining means, the accepting means for accepting identification information for the recording medium, the thumbnail created by the creating means and the accepting means And a memory for storing the identification information in association with each other, and a display processing unit for reading a thumbnail associated with the identification information received by the receiving unit from the memory and performing a display process.

  The present invention comprises a receiving means for receiving input of identification information of a recording medium, and a memory for storing the received identification information and a thumbnail in association with each other, and reading out the thumbnail associated with the received identification information from the memory for display. Thus, for example, when the recording medium is a low-speed reading device such as a video tape or an optical disk, the memory for storing the thumbnail is configured with a high-speed reading device such as a semiconductor memory, so that the thumbnail can be displayed at high speed. In addition, it is possible to display thumbnails without attaching a recording medium to the apparatus main body, thereby making it easy for a user to search for moving images.

  The moving image recording apparatus according to the present invention is characterized in that the accepting means accepts identification information when a recording medium is attached to the attachment portion.

  In the present invention, when the recording medium is mounted on the mounting portion, identification information for the recording medium is received from the user, so that the user can easily input the identification information for the new recording medium.

  The thumbnail display method according to the present invention includes a receiving unit that receives input of information, a memory that stores information, a mounting unit that mounts a recording medium, an acquisition unit that acquires a moving image, and a mounting unit that is mounted on the mounting unit. Movie recording means for recording the movie acquired by the acquisition means on a recording medium, creation means for creating a thumbnail based on the movie obtained by the acquisition means, and display for performing processing relating to display of the thumbnail created by the creation means A thumbnail display method for displaying thumbnails using a moving image recording apparatus comprising processing means, wherein identification information is added to a recording medium, the recording medium with identification information added is attached to the attachment unit, and the reception unit The identification information is input, and the video recording apparatus associates the identification information related to the input received by the reception unit with the thumbnail generated by the generation unit in the memory. Remembering, removing the recording medium from the mounting unit, mounting the recording medium on the mounting unit again, and inputting the identification information added to the recording medium mounted on the mounting unit at the receiving unit, The thumbnail associated with the identification information related to the input received by the receiving unit is read from the memory, and the display processing means performs a process related to the display of the thumbnail.

  In this invention, identification information is added by writing or printing on the surface of the recording medium, the identification information and the thumbnail are associated with each other and stored in the memory provided in the apparatus main body, and the recording medium is mounted again. In such a case, the identification information is input, and the thumbnail associated with the input identification information is read from the memory and displayed, for example, when the recording medium is a low-speed reading such as a video tape or an optical disk, The memory for storing thumbnails is constituted by a high-speed reading device such as a semiconductor memory, so that thumbnails can be displayed at high speed, and the user can easily search for moving images.

  In the case of the present invention, the identification information is recorded on the recording medium, the identification information and the thumbnail are associated with each other and stored in the memory provided in the apparatus main body, the identification information is read from the recording medium, and is associated with the read identification information. By reading out the displayed thumbnail from the memory and displaying it, for example, when the recording medium is a low-speed reading device such as a video tape or an optical disk, the memory for storing the thumbnail is a high-speed reading device such as a semiconductor memory. In the case of the configuration, since thumbnails can be displayed at high speed, the burden on the user when searching for a moving image recorded on a recording medium can be reduced.

  Further, according to the present invention, when the recording medium is mounted on the mounting portion, the recording medium is provided with detection means for detecting whether the identification information is recorded, and the identification information is already recorded on the recording medium. In some cases, the thumbnails associated with the identification information are read from the memory so that the thumbnails can be displayed automatically, so that the user searches for the moving images recorded on the recording medium. The burden on the case can be reduced.

  Further, in the case of the present invention, when the identification information is not recorded on the recording medium attached to the attachment unit, the identification information recording means records the identification information so that the new recording medium is attached. Since the identification information can be automatically recorded, the burden when the user searches for the moving image recorded on the recording medium can be reduced.

  Further, according to the present invention, the identification information can be easily read by allowing the identification information recording means to record the identification information at a location where the recording medium is first read.

  Further, according to the present invention, the information processing apparatus includes a receiving unit that receives input of identification information of a recording medium, and a memory that stores the received identification information and a thumbnail in association with each other, and reads a thumbnail associated with the received identification information from the memory. Thus, for example, when the recording medium is a low-speed read-out device such as a video tape or an optical disk, and the memory storing the thumbnail is configured with a high-speed read-out device such as a semiconductor memory, the thumbnail is stored. When a user searches for a moving image recorded on a recording medium because it can be displayed at high speed and can be searched by displaying thumbnails without attaching the recording medium to the main body of the apparatus. Can be reduced.

  Also, according to the present invention, when the recording medium is mounted on the mounting portion, the identification information for the recording medium is received from the user, thereby making it easier for the user to input the identification information for the new recording medium. be able to.

  In the case of the present invention, the identification information is recorded on the surface of the recording medium or printed by using a moving image recording apparatus having a memory that stores the identification information added to the recording medium in association with the thumbnail. In addition, the identification information and the thumbnail are associated and stored in the memory, and when the recording medium is mounted again, the identification information is input, and the thumbnail associated with the identification information is read from the memory and displayed. For example, if the recording medium is a low-speed reading device such as a video tape or an optical disk, and the memory storing the thumbnail is composed of a high-speed reading device such as a semiconductor memory, the thumbnail can be displayed at high speed. Therefore, it is possible to reduce the burden when the user searches for a moving image recorded on the recording medium.

Hereinafter, the present invention will be described in detail by taking a DVD video camera as an example of a moving image recording apparatus, based on the drawings showing embodiments thereof.
(Embodiment 1)
FIG. 1 is a rear perspective view of a DVD video camera according to Embodiment 1 of the present invention. In this figure, reference numeral 1 denotes a DVD drive. A DVD disk can be mounted on the DVD drive 1 as a recording medium, and moving image data captured on the DVD disk can be recorded. The DVD drive 1 is disposed on a side surface of a substantially rectangular parallelepiped housing including the moving image capturing unit 2, and an image display unit 3 including a liquid crystal monitor 4 is provided on the opposite side of the surface on which the DVD drive 1 is disposed. It is pivotally supported.

  An operation unit 5 is provided at the back of the DVD video camera and in the vicinity thereof. The operation unit 5 includes a power switch 5a, a recording button 5b for starting recording of moving image data, and a playback button for starting reproduction of the recorded moving image data. 5c, a stop button 5d for stopping recording and reproduction, and a cursor key 5e used for menu selection and the like. The moving image capturing unit 2 includes a lens 2a and a CCD 2b. The lens 2a condenses light from the subject, and the image formed by focusing on the lens 2a is converted into an analog image signal by the CCD 2b. .

  FIG. 2 is a block diagram showing the configuration of the DVD video camera according to the present invention. In this figure, 11 is a control unit of the DVD video camera, and the control unit 11 controls each component described below. An imaging signal obtained by converting the image focused and formed by the lens 2a of the moving image pickup unit 2 by the CCD 2b is supplied to the imaging signal processing unit 12, and the imaging signal processing unit 12 converts the analog imaging signal into a digital moving image. It is converted into data and given to the image processing unit 13.

  The image processing unit 13 corrects the brightness and saturation of the moving image data obtained by the imaging signal processing unit 12, supplies the corrected moving image data to the codec unit 14, and outputs the corrected moving image data for monitor output. The signal is converted into a signal and supplied to the image display unit 3 and the image output unit 16. The image display unit 3 includes a liquid crystal monitor 4 and displays an image on the liquid crystal monitor 4 based on a monitor output signal given from the image processing unit 13. The image output unit 16 is an output port that outputs image data, and can display moving image data on a CRT display, a liquid crystal display, or the like by connecting an external display device 51. The codec unit 14 has a function of compressing the moving image data given from the image processing unit 13 by a compression / decompression method such as MPEG2 or MotionJPG. Further, the image processing unit 13 is provided with the decompressed moving image data from the decoder 15 having a function of decompressing the compressed moving image data, and the image display unit 3 and the image output unit 16 receive the moving image data from the decoder 15. Can be given to. Further, the image processing unit 13 gives a message to the user given from the control unit 11 and thumbnails stored in a thumbnail memory 21 described later to the image display unit 3 and the image output unit 16, so that the image display unit 3 The image can be displayed on the display device 51 connected to the liquid crystal monitor 4 and the image output unit 16.

  The control unit 11 is connected to a DVD drive 1 that writes data to a DVD disk 50 that is a recording medium and reads data from the DVD disk 50. The DVD drive 1 includes a pickup 17 and a motor 18. The DVD disk 50 mounted on the DVD drive 1 is rotated by the motor 18, and the pickup 17 applies a laser to the surface of the DVD disk 50 to write and write data. Read.

  The control unit 11 is connected to a ROM 19, a RAM 20, and a thumbnail memory 21 that are storage elements. The ROM 19 stores a program to be executed by the control unit 11. When the power switch 5a of the DVD video camera is turned on, the program stored in the ROM 19 is read and the control unit 11 starts processing. The ROM 19 is composed of a nonvolatile memory element such as a mask ROM or a flash memory. The RAM 20 is a memory for temporarily storing data. The RAM 20 temporarily stores the moving image data compressed by the codec unit 14 for writing to the DVD disk 50 or is decoded by the decoder 15. This is used for such purposes as temporarily storing moving image data read from the DVD disk 50. The RAM 20 may be composed of a volatile memory element such as SRAM or SDRAM, or a nonvolatile memory element such as a flash memory. The thumbnail memory 21 stores an identification number assigned to the DVD disc 50 and a thumbnail of the moving image data recorded on the DVD disc 50 in association with each other. The thumbnail memory 21 is composed of a nonvolatile memory element that can be read at high speed, such as a flash memory.

  Further, a memory slot 22 and an operation unit 5 are connected to the control unit 11. A semiconductor memory 52 such as a smart media or an SD card is attached to the memory slot 22 and data can be written and read. The semiconductor memory 52 can be used for backing up data stored in the thumbnail memory 21 or temporarily saving data. The operation unit 5 includes a power switch 5a, a recording button 5b, a playback button 5c, a stop button 5d, a cursor key 5e used for menu selection, and the like. The user can perform various functions such as recording and playback of the DVD video camera. Used when doing.

  When capturing a moving image, recording is started by pressing the recording button 5b provided on the operation unit 5 with the DVD disk 50 mounted in the DVD drive 1. The lens 2a condenses the light from the subject, the CCD 2b converts the condensed and imaged image into an analog image signal, and the image signal processor 12 converts the analog image signal into digital moving image data. To the image processing unit 13. The image processing unit 13 corrects the brightness, saturation, and the like of the moving image data and gives them to the codec unit 14, and the codec unit 14 performs compression processing of the moving image data. The moving image data compressed by the codec unit 14 is temporarily stored in the RAM 20, and the control unit 11 gives the moving image data stored in the RAM 20 to the DVD drive 1, and the moving image data is written to the DVD disk 50 by the DVD drive 1. It is.

  When reproducing moving image data, the reproduction is started by pressing the reproduction button 5c provided in the operation unit 5 with the DVD disk 50 mounted in the DVD drive 1. The moving image data read by the DVD drive 1 is temporarily stored in the RAM 20, and the control unit 11 gives the moving image data stored in the RAM 20 to the decoder 15. The decoder 15 decompresses the compressed moving image data and gives it to the image processing unit 13, and the image processing unit 13 converts the given moving image data into a monitor output signal and sends it to the image display unit 3 and the image output unit 16. give. When a moving image is displayed on the liquid crystal monitor 4 provided in the image display unit 3 and an external display device 51 is connected to the image output unit 16, the moving image is displayed on the display device 51.

  In the DVD video camera according to the present invention, not only recording and reproduction of moving image data, but also the contents of the moving image data recorded on the DVD disk 50 as a recording medium are displayed on the liquid crystal monitor of the image display unit 3 by displaying a list of thumbnails. 4 or an external display device 51 connected to the image output unit 16. The thumbnail of the moving image data is stored not in the DVD disc 50 but in the thumbnail memory 21 provided in the DVD video camera in association with the identification number together with the identification number assigned to the DVD disc 50, and the thumbnail is stored in the thumbnail memory. The configuration of reading out from 21 speeds up reading of thumbnails.

  A specific area of the DVD disk 50, for example, an area of several bytes from the start address of the storage area of the DVD disk 50 or an area of several bytes from the last address is an identification number writing area in the DVD video camera according to the present embodiment. Use as It is desirable that the identification number writing area be a location where reading can be performed first when the DVD disk 50 is loaded in the DVD drive 1. Further, when the identification number or manufacturing number of the DVD video camera is written together with the identification number of the DVD disk 50, the DVD disk 50 recorded by another DVD video camera can be distinguished.

  FIG. 3 is a flowchart showing identification number writing processing and thumbnail display processing of the control unit 11 in the DVD video camera according to Embodiment 1 of the present invention. The control unit 11 checks whether or not the DVD disk 50 is loaded in the DVD drive 1 (step S1). If the DVD disk 50 is not loaded (S1: NO), the controller 11 waits until the DVD disk 50 is loaded. To do. When the DVD disk 50 is loaded (S1: YES), the DVD drive 1 detects whether an identification number is written in a specific area of the DVD disk 50 (step S2).

  From the detection result, it is determined whether or not an identification number is written on the DVD disk 50 (step S3). If no identification number is written (S3: NO), it is not stored in the thumbnail memory 21 and is not registered. One new identification number is determined by searching the identification number (step S4). The determined identification number is stored in the thumbnail memory 21 to register the identification number (step S5), and the registered identification number is written in a specific area of the DVD disc 50 mounted on the DVD drive 1 (step S6).

  If an identification number has been written on the DVD disk 50 mounted on the DVD drive 1 (S3: YES), the identification number is read from the DVD disk 50 (step S7) and associated with the read identification number. A thumbnail is read from the thumbnail memory 21 (step S8), the read thumbnail is sent to the image processing unit 13, and the thumbnail is displayed on the external display device 51 connected to the liquid crystal monitor 4 or the image output unit 16 of the image display unit 3. (Step S9).

  The thumbnails displayed in a list on the liquid crystal monitor 4 or the external display device 51 are obtained by extracting the video at the start of moving image data capture as a still image, and are associated with the identification number of the DVD disk 50 at the start of moving image capture. Store in the thumbnail memory 21. FIG. 4 is a flowchart showing the recording process of the control unit 11 in the DVD video camera according to Embodiment 1 of the present invention.

  The control unit 11 checks whether or not the recording button 5b provided in the operation unit 5 is pressed (step S21). If the recording button 5b is not pressed (S21: NO), the recording button 5b is pressed. Wait until When the recording button 5b is pressed (S21: YES), the CCD 2b, the imaging signal processing unit 12, the image processing unit 13, and the codec unit 14 are activated to start capturing captured moving image data (step S22). When capturing is started, the image from the lens 2a is sequentially processed by the CCD 2b, the imaging signal processing unit 12, the image processing unit 13, and the codec unit 14, and is temporarily stored in the RAM 20 as compressed moving image data. An image at the start of imaging is extracted from the moving image data temporarily stored in the RAM 20 as a still image (step S23), and the extracted image associated with the identification number of the DVD disc 50 mounted on the DVD drive 1 is a thumbnail. Store in the memory 21 (step S24).

  After extracting still images as thumbnails from the moving image data and storing them in the thumbnail memory 21, the moving image data temporarily stored in the RAM 20 is sent to the DVD drive 1 and written to the DVD disk 50 (step S25). The control unit 11 checks whether or not the stop button 5d provided in the operation unit 5 has been pressed (step S26). If the stop button 5d has not been pressed (S26: NO), the control unit 11 returns to step S25 to return to the DVD disc. If the moving image data is written to 50 and the stop button 5d is pressed (S26: YES), the moving image data recording process ends.

  Further, when reproducing moving image data recorded on the DVD disc 50, a plurality of thumbnails can be selected with the cursor key 5e of the operation unit 5 in a state where the DVD disc 50 is mounted on the DVD drive 1 and a list of thumbnails is displayed. The user can select what he / she wants to reproduce and press the reproduction button 5c to start reproduction. FIG. 5 is a flowchart showing playback processing in the control unit 11 of the DVD video camera according to Embodiment 1 of the present invention.

  The control unit 11 checks whether or not the moving image data to be reproduced is selected by operating the cursor key 5e and the reproduction button 5c of the operation unit 5 (step S41), and when the moving image data to be reproduced is not selected (step S41). S41: NO), and waits until moving image data to be reproduced is selected. When the moving image data to be reproduced is selected (S41: YES), the moving image data to be reproduced is searched from the DVD disk 50 mounted on the DVD drive 1 (step S42), and the moving image data is read from the DVD disk 50 (step S42). S43), the read moving image data is decoded by the decoder 15, converted into a monitor output signal by the image processing unit 13, and the display device connected to the liquid crystal monitor 4 or the image output unit 16 of the image display unit 3 Playback is performed at 51 (step S44). The control unit 11 checks whether or not the stop button 5d of the operation unit 5 is pressed (step S45). If the stop button 5d is not pressed (S45: NO), the control unit 11 returns to step S43 to reproduce the moving image data. If the stop button 5d is pressed (S45: YES), the reproduction of the moving image data is terminated.

  The DVD video camera configured as described above can record and reproduce moving image data, and further stores a thumbnail of the moving image data recorded on the DVD disk 50 as a recording medium in the thumbnail memory 21. Thus, when the DVD disk 50 is loaded in the DVD drive 1, the contents of the moving image data recorded on the DVD disk 50 can be displayed as a list using thumbnails at a high speed for the user.

  In the first embodiment of the present invention, the configuration in which the identification number is written on the DVD disk 50 is shown. However, the present invention is not limited to this. For example, when the serial number is written in advance on the DVD disk 50, the serial number May be used as an identification number. Further, although the thumbnail memory 21 is constituted by an independent memory element, when the RAM 20 is constituted by a nonvolatile memory element, a configuration may be adopted in which a specific area of the RAM 20 is used as an area for storing thumbnails. In addition, the video at the start of moving image capture is extracted as a still image to create a thumbnail. However, the present invention is not limited to this, such as a video after a certain time from the start of imaging or a video before a certain time from the end of imaging, etc. You may create a thumbnail by extracting the video. In addition, although a configuration has been shown in which a thumbnail that is a still image is created from moving image data and stored in the thumbnail memory 21, the present invention is not limited to this, and moving image data having a playback time of about several seconds is created from moving image data. It is good also as a structure which memorize | stores in 21 and displays this as a list. Further, the configuration in which the thumbnails are stored only in the thumbnail memory 21 is shown, but the thumbnails may also be recorded on the DVD disk 50.

(Embodiment 2)
In the first embodiment, the identification number of the DVD disk 50 is written on the DVD disk 50 by the DVD drive 1 and the identification number is automatically read out when the DVD disk 50 is mounted. Shows a configuration in which the user inputs the identification number using the input means. FIG. 6 is a rear perspective view of the DVD video camera according to Embodiment 2 of the present invention.

  The DVD video camera in this figure has a configuration in which the operation unit 5 of the DVD video camera according to Embodiment 1 is further provided with a thumbnail display button 5f and a numeric keypad 5g. The thumbnail display button 5 f is a button for displaying thumbnails stored in the thumbnail memory 21, and can display thumbnails regardless of whether the DVD disk 50 is loaded in the DVD drive 1. The numeric keypad 5g is a key for inputting a numerical value, and is used when inputting an identification number of a new DVD disk 50, inputting an identification number of a DVD disk 50 for performing thumbnail display, and the like.

  The identification number of the DVD disc 50 can be set to an arbitrary value so that the user does not overlap, and the identification number input by the user and the thumbnail created from the moving image data are related and stored in the thumbnail memory 21. It is. It is desirable that the identification number of the DVD disk 50 be made recognizable by the user by, for example, printing on the label surface of the DVD disk 50 or applying a sticker on which the identification number is written. . By enabling the user to recognize the identification number, the thumbnails stored in the thumbnail memory 21 can be displayed as a list based on the identification number without mounting the DVD disc 50 and searched. Further, all the thumbnails stored in the thumbnail memory 21 can be displayed, and the DVD disk 50 on which the target moving image data is recorded can be searched based on the identification number.

  Determination of the identification number of the new DVD disk 50 and display of thumbnails can be performed by mounting the DVD disk 50 in the DVD drive 1. FIG. 7 is a flowchart showing processing of the control unit 11 when the DVD disk 50 is loaded in the DVD drive 1 in the DVD video camera according to Embodiment 2 of the present invention.

  The control unit 11 checks whether or not the DVD disk 50 is loaded in the DVD drive 1 (step S61). If the DVD disk 50 is not loaded (S61: NO), the control unit 11 waits until the DVD disk 50 is loaded. . When the DVD disk 50 is loaded in the DVD drive 1 (S61: YES), the identification number of the DVD disk 50 is input to the liquid crystal monitor 4 of the image display unit 3 or the external display device 51 connected to the image output unit 16. A display command is given to the image processing unit 13 so as to display a message to request the identification number, and an identification number input request message is displayed (step S62).

  FIG. 8 is a display example of a message displayed on the image display unit 3 of the DVD video camera according to the present invention. In FIG. 8, (a) is a display example of an identification number input request message of a DVD disc, and the user can input the identification number of the DVD disc 50 by using the numeric keypad 5g of the operation unit 5. Further, (b) is a display example of a thumbnail display method selection message to be described later, and the user selects either the full display or the specific display with the cursor key 5e of the operation unit 5 as the thumbnail display method. I can do it. (C) is a display example of a later-described DVD disk mounting request message, which displays a message requesting the user to mount the DVD disk 50 with the specified identification number in the DVD drive 1.

  The message for requesting the identification number input of the DVD disk 50 is displayed on the liquid crystal monitor 4 or the external display device 51 to prompt the user to input the identification number, and the user enters the numeric keypad 5g provided in the operation unit 5. Can be used to input the identification number of the DVD disk 50 loaded in the DVD drive 1.

  The control unit 11 checks whether or not the user has input the identification number of the DVD disk 50 (step S63). If the identification number has not been input (S63: NO), the control unit 11 returns to step S62 to input the identification number. Display a request message and wait for the identification number to be entered. When the identification number is input (S63: YES), it is checked whether or not the input identification number is a registered identification number stored in the thumbnail memory 21 (step S64). If the input identification number is not registered in the thumbnail memory 21 (S64: NO), the input identification number is newly registered in the thumbnail memory 21 (step S65). If the input identification number has been registered (S64: YES), the thumbnail associated with the input identification number is read from the thumbnail memory 21 (step S66), and the read thumbnail is sent to the image processing unit 13. Then, the thumbnail is displayed on the external display device 51 connected to the liquid crystal monitor 4 or the image output unit 16 of the image display unit 3 (step S67).

  Further, in the DVD video camera according to the present embodiment, it is possible to display the thumbnails stored in the thumbnail memory 21 without searching for the DVD disk 50 in the DVD drive 1 and to search for moving image data. . When the user wants to search for moving image data without mounting the DVD disk 50, the user can request to display thumbnails by pressing the thumbnail display button 5f provided on the operation unit 5. In addition, thumbnails are recorded in a specific DVD disk 50 by inputting the identification number of the DVD disk 50 by a user who inputs all the thumbnails stored in the thumbnail memory 21 according to the identification number. It is possible to select a specific display method for displaying only thumbnails of moving image data. FIG. 9 and FIG. 10 are flowcharts showing processing of the control unit 11 in the case where the thumbnail is displayed and the moving image data is reproduced in the DVD video camera according to Embodiment 2 of the present invention.

  The control unit 11 checks whether or not the thumbnail display button 5f of the operation unit 5 is pressed (step S81). If the thumbnail display button 5f is not pressed (S81: NO), the thumbnail display button 5f is pressed. Wait until. When the thumbnail display button 5f is pressed (S81: YES), a display command is given to the image processing unit 13 to display a message requesting selection of a thumbnail display method, and the liquid crystal monitor of the image display unit 3 is displayed. 4 or a display method selection message is displayed on the external display device 51 connected to the image output unit 16 (step S82).

  In step S82, the display method selection message shown in FIG. 8B is displayed to request the user to make a selection. The user uses the cursor key 5e of the operation unit 5 to select the thumbnail memory 21. It is possible to select whether to display all the thumbnails stored in the memory or to read out and display only thumbnails of moving image data recorded on a specific DVD disc 50 from the thumbnail memory 21.

  After displaying the display method selection message, the control unit 11 checks whether or not the display method has been selected (step S83). If the display method has not been selected (S83: NO), the control unit 11 returns to step S82 to display the display method. Display a method selection message and wait until a display method is selected. When the display method is selected (S83: YES), it is checked whether or not the thumbnail display method selected by the user is full display (step S84), and when the full display is not selected (S84). : NO), a message display command is given to the image processing unit 13 so as to display a message requesting input of the identification number of the DVD disc 50 for thumbnail display, and the liquid crystal monitor 4 or the image output of the image display unit 3 The identification number input request message is displayed on the external display device 51 connected to the unit 16 (step S85).

  After displaying the identification number input request message, it is checked whether or not the identification number of the DVD disc 50 to be searched has been input (step S86). If no identification number has been input (S86: NO), the process proceeds to step S85. Return, display the identification number input request message, and wait until the identification number is input. When the identification number is input (S86: YES), it is checked whether or not the input identification number is already registered in the thumbnail memory 21 (step S87), and the identification number is registered in the thumbnail memory 21. If not (S87: NO), the process returns to step S85 to display again the message requesting the input of the identification number.

  When full display is selected as the thumbnail display method in step S84 (S84: YES) and when the identification number input in step S87 is registered in the thumbnail memory 21 (S87: YES), full display If is selected, all the thumbnails are read from the thumbnail memory 21, and if the specific display is selected, the thumbnail associated with the input identification number is read (step S88). The read thumbnail is sent to the image processing unit 13, and the thumbnail is displayed on the external display device 51 connected to the liquid crystal monitor 4 or the image output unit 16 of the image display unit 3 (step S89).

  FIG. 11 is a display example of thumbnails displayed on the image display unit 3 of the DVD video camera according to the present invention. In FIG. 11, (a) is a case where a method for displaying all thumbnails stored in the thumbnail memory 21 is selected, and (b) is a specification for displaying only the thumbnails stored in association with the input identification number. This is a case where the display method is selected.

  In the case of FIG. 11A, when thumbnails are displayed in a line in the horizontal direction of the screen of the liquid crystal monitor 4 for each DVD disk 50, and many thumbnails are stored and cannot be displayed in the screen of the liquid crystal monitor 4. The search is performed by scrolling the thumbnail row in the left-right direction with the cursor key 5e of the operation unit 5. When the identification numbers and thumbnails of a plurality of DVD discs 50 are registered, the thumbnail row is displayed in the order of the identification numbers in the vertical direction of the screen of the liquid crystal monitor 4. When the image cannot be displayed on the screen, the cursor key 5e of the operation unit 5 is used to perform a search by scrolling up and down.

  In the case of FIG. 11B, thumbnails of moving image data recorded on the DVD disk 50 having the inputted identification number are displayed over a plurality of columns. When a large number of thumbnails are stored and cannot be displayed on the screen of the liquid crystal monitor 4, the cursor key 5e of the operation unit 5 is used to scroll the screen up and down to perform a search.

  After a list of thumbnails is displayed on the external display device 51 connected to the liquid crystal monitor 4 or the image output unit 16 of the image display unit 3, the user operates the cursor key 5e of the operation unit 5 to select one thumbnail. Then, by pressing the playback button 5c, the selection of the moving image data can be confirmed and playback can be performed.

  After displaying the thumbnail, the control unit 11 checks whether or not the moving image data to be played is selected by pressing the play button 5c (step S90). If not selected (S90: NO), the control unit 11 returns to step S89. Display thumbnails and wait until video data is selected. When the moving image data to be reproduced is selected (S90: YES), the image processing unit 13 is displayed to display a message requesting the user to mount the DVD disk 50 on which the moving image data related to the selected thumbnail is recorded. A display command is given, and a DVD disk mounting request message is displayed on the display device 51 connected to the liquid crystal monitor 4 or the image output unit 16 of the image display unit 3 (step S91).

  In step S91, a DVD disk mounting request message shown in FIG. 8C is displayed, and the user is requested to mount the DVD disk 50 on which the selected moving image data is recorded with an identification number. The user searches for the DVD disk 50 on which the moving image data to be reproduced is recorded based on the identification number, and attaches it to the DVD drive 1 for reproduction.

  After displaying the DVD disk mounting request message, the control unit 11 checks whether or not the DVD disk 50 is mounted in the DVD drive 1 (step S92). If the DVD disk 50 is not mounted (S92: NO), Returning to step S91, a DVD disk mounting request message is displayed, and the process waits until the DVD disk 50 is mounted. When the DVD disk 50 is mounted on the DVD drive 1 (S92: YES), the moving image data to be reproduced is searched from the moving image data recorded on the mounted DVD disk 50 (step S93). It is checked whether or not moving image data to be reproduced is recorded on the DVD disk 50 (step S94). When the moving image data to be reproduced cannot be detected from the mounted DVD disk 50 (S94: NO), the process returns to step S91 to display the DVD disk mounting request message again, and the moving image data to be reproduced has been recorded. (S94: YES), the detected moving image data is read (step S95). The read moving image data is decoded by the decoder 15, converted into a monitor output signal by the image processing unit 13, and displayed by the liquid crystal monitor 4 of the image display unit 3 or the display device 51 connected to the image output unit 16. Playback is performed (step S96). The control unit 11 checks whether or not the stop button 5d of the operation unit 5 is pressed (step S97). If the stop button 5d is not pressed (S97: NO), the control unit 11 returns to step S95 to reproduce the moving image data. If the stop button 5d is pressed (S97: YES), the reproduction of the moving image data is terminated.

  The DVD video camera configured as described above can record and reproduce moving image data, and further stores a thumbnail of the moving image data recorded on the DVD disk 50 as a recording medium in the thumbnail memory 21. Thus, the contents of the moving image data recorded on the DVD disc 50 can be displayed as a list at high speed to the user using thumbnails, and the DVD disc 50 can be displayed without being mounted on the DVD drive 1. The contents of the moving image data recorded on the DVD disc 50 can be displayed as a list using thumbnails.

  Since the other configuration of the DVD video camera according to the second embodiment is the same as that of the DVD video camera according to the first embodiment, the same portions are denoted by the same reference numerals and detailed description thereof is omitted.

  In the present embodiment, the configuration in which the DVD disk 50 is identified using the identification number is shown. However, the present invention is not limited to this, and the identification may be performed using an identification name, for example. In addition, the user determines the identification number of the DVD disk 50. However, the present invention is not limited to this. For example, the date and time when the DVD disk 50 is loaded in the DVD drive 1 is stored in the thumbnail memory 21 as a time stamp. It may be. Further, the identification number of the DVD disc 50 is input using the numeric keypad 5g provided in the operation unit 5. However, the present invention is not limited to this, and a software numeric keypad is displayed on the liquid crystal monitor 4 of the image display unit 3. The cursor key 5e provided in the operation unit 5 is displayed on the liquid crystal monitor 4 of the image display unit 3 by inputting with the cursor key 5e provided in the operation unit 5 or registered in the thumbnail memory 21. It is good also as other structures, such as selecting by. Further, the thumbnail is displayed using the thumbnail display button 5f provided in the operation unit 5. However, the present invention is not limited to this. For example, the menu is displayed on the liquid crystal monitor 4 of the image display unit 3, and the thumbnail display is performed from the menu. It is good also as a structure which selects an item.

  In the present embodiment, the identification number is not recorded on the DVD disk 50 that is a recording medium, but the user only inputs from the operation unit 5. However, the identification number is written on the DVD disk 50. A function may be further provided. In this case, when a new recording medium is loaded, the user is caused to input an identification number, and the input identification number is recorded on the recording medium. When a recording medium in which an identification number is recorded is loaded, the identification number is automatically read out and the thumbnail is read out from the thumbnail memory 21 and displayed. The user does not need to input an identification number when the recording medium is mounted. If the entered identification number is written on the surface of the recording medium so that the user can recognize it, the user The thumbnail can be displayed by inputting the identification number without attaching the recording medium to the apparatus main body, and all the thumbnails stored in the thumbnail memory 21 are displayed to record the desired moving image data. Can be searched based on the identification number.

  In the embodiment of the present invention, the configuration of the DVD video camera is shown as the moving image recording apparatus. However, the present invention is not limited to this, and a video for recording moving image data on another recording medium such as a video tape or a semiconductor memory The same configuration can be applied even to a camera, and the same configuration can be applied to a video recorder that records a TV program on a recording medium such as a video tape, a DVD disc, or a Blu-ray disc instead of a video camera. Can be applied.

1 is a rear perspective view of a DVD video camera according to Embodiment 1 of the present invention. It is a block diagram which shows the structure of the DVD video camera which concerns on this invention. 4 is a flowchart showing identification number writing processing and thumbnail display processing of the control unit in the DVD video camera according to Embodiment 1 of the present invention. It is a flowchart which shows the video recording process of the control part in the DVD video camera concerning Embodiment 1 of this invention. It is a flowchart which shows the reproduction | regeneration processing in the control part of the DVD video camera which concerns on Embodiment 1 of this invention. It is a back perspective view of the DVD video camera concerning Embodiment 2 of the present invention. It is a flowchart which shows the process of the control part at the time of mounting a DVD disc in the DVD drive in the DVD video camera concerning Embodiment 2 of this invention. It is a display example of the message displayed on the image display unit of the DVD video camera according to the present invention. It is a flowchart which shows the process of the control part in the case of reproducing a moving image data by displaying a thumbnail in the DVD video camera concerning Embodiment 2 of this invention. It is a flowchart which shows the process of the control part in the case of reproducing a moving image data by displaying a thumbnail in the DVD video camera concerning Embodiment 2 of this invention. It is an example of a display of the thumbnail displayed on the image display part of the DVD video camera concerning the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 DVD drive 2 Moving image pick-up part 3 Image display part 5 Operation part 5f Thumbnail display button 11 Control part 13 Image processing part 14 Codec part 15 Decoder 21 Thumbnail memory 50 DVD disc

Claims (7)

In a moving image recording apparatus comprising: an acquisition unit that acquires a moving image; a mounting unit that mounts a recording medium; and a moving image recording unit that records the moving image acquired by the acquiring unit on a recording medium mounted on the mounting unit.
Creating means for creating a thumbnail based on the video obtained by the obtaining means;
Identification information recording means for recording identification information on a recording medium attached to the attachment unit;
A memory for storing the thumbnail created by the creating unit and the identification information recorded by the identification information recording unit in association with each other;
Identification information reading means for reading identification information from the recording medium;
A moving image recording apparatus comprising: a display processing unit that reads a thumbnail associated with the identification information read by the identification information reading unit from the memory and performs processing related to display. When a recording medium is attached to the attachment unit, the detection unit includes a detection unit that detects whether identification information is recorded on the recording medium,
2. The moving image recording apparatus according to claim 1, wherein when the detection unit detects that the identification information is recorded, the identification information reading unit reads the identification information.   3. The moving image recording apparatus according to claim 2, wherein when the detection unit detects that no identification information is recorded on the recording medium, the identification information recording unit records the identification information.   4. The moving image recording apparatus according to claim 1, wherein the identification information recording unit records the identification information at a location where the identification information reading unit of the recording medium first reads. In a moving image recording apparatus comprising: an acquisition unit that acquires a moving image; a mounting unit that mounts a recording medium; and a moving image recording unit that records the moving image acquired by the acquiring unit on a recording medium mounted on the mounting unit.
Creating means for creating a thumbnail based on the video obtained by the obtaining means;
Receiving means for receiving identification information for the recording medium;
A memory that stores the thumbnail created by the creating unit and the identification information received by the receiving unit in association with each other;
A moving image recording apparatus comprising: a display processing unit that reads out a thumbnail associated with the identification information received by the receiving unit from the memory and performs processing related to display.   The moving image recording apparatus according to claim 5, wherein the receiving unit is configured to receive identification information when a recording medium is mounted on the mounting unit. A receiving unit that receives input of information, a memory that stores information, a mounting unit that mounts a recording medium, an acquisition unit that acquires a moving image, and a moving image acquired by the acquiring unit in a recording medium mounted in the mounting unit A moving picture recording apparatus comprising: a moving picture recording means for recording a thumbnail; a creating means for creating a thumbnail based on the moving picture obtained by the obtaining means; and a display processing means for performing processing relating to display of the thumbnail created by the creating means. A thumbnail display method for displaying thumbnails,
Add identification information to the recording medium,
A recording medium to which identification information is added is mounted on the mounting portion,
Input identification information at the reception unit,
The moving image recording apparatus stores the identification information related to the input received by the receiving unit and the thumbnail created by the creating unit in association with each other in the memory,
After removing the recording medium from the mounting portion, it is mounted again on the mounting portion,
The identification information added to the recording medium attached to the attachment unit is input at the reception unit,
The moving image recording apparatus reads a thumbnail associated with identification information related to an input received by the receiving unit from the memory, and performs a process related to displaying the thumbnail by the display processing unit. .

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