JP4277291B2 - Image capturing device and image data copying method - Google Patents

Description

The present invention relates to a photographing apparatus and a photographing data copying method .

  Conventionally, a video camera that records image data on an exchangeable recording medium is known. In this type of video camera, the image data recorded on a recording medium such as a memory card is given a file name that is uniquely specified as a file, and the image is identified and searched based on the file name. Can be done. Further, the file name is given so as to clearly represent the shooting order of the images, and when the image file is reproduced and displayed, the reproduction display processing is performed in the shooting order based on the file name ( For example, see Patent Document 1.)

  A video camera equipped with a plurality of recording media has also been proposed (see, for example, Patent Document 2). According to Patent Document 2, it is described that when a video camera is configured with a hard disk having a large storage capacity as a main recording medium, a semiconductor card memory is further provided to reduce the influence of the vibration of the video camera on the hard disk. Has been.

JP 2002-247435 A JP 2002-369121 A

  By the way, as described above, the image data recorded on the recording medium such as a memory card is given a file name uniquely specified as a file, and the image can be identified and searched based on the file name. It can be done. Further, the file name is given so as to clearly represent the shooting order of the images, and when the image file is played back and displayed, the playback display processing is performed in the shooting order based on the file name. Normally, when the remaining capacity of the memory card runs out, the data on the memory card is transferred to another recording medium using a personal computer (hereinafter referred to as PC).

  In a video camera equipped with a plurality of recording media, a conventional file name assigning method is used in a usage mode in which recording is once performed on a first recording medium and the same data is transferred to a second recording medium as disclosed in Patent Document 2. Is not a problem. However, in a plurality of equipped recording media, video management is performed using a conventional file name assignment method in a video camera configured to store data independently, and data is recorded between recording media in the video camera. When copying or moving a file, there is a problem that a file with the same name exists and cannot be copied or moved, or is overwritten and the stored data is lost.

The present invention has been made in view of the above points, and an object thereof is to provide a photographing apparatus and a photographing data copying method for simply and safely copying data between a plurality of recording media.

In order to solve the above-mentioned problems, the present invention is an imaging device capable of recording and reproducing images using a plurality of types of recording media and transferring shooting data between the plurality of types of recording media. When the image data recorded on the one recording medium is copied to another recording medium, the image data is output when the image data is output to the other recording medium. When there is no DCIM folder in the copy destination recording medium and a selection means for selecting a shooting data file as a copy target file , the DCIM folder is created in the copy destination recording medium, and the created DCIM folder A subfolder to which the copy target file belongs is created in a lower layer, and the copy target files respectively corresponding to the lower layer of the created subfolder are created. While copying yl, if the copy destination recording medium has the DCIM folder, a sequential number starting from 1 added number to the maximum number of digits of the names of the existing subfolders following the lower layer of the DCIM folder, And a copy unit configured to add and create as a numerical part of the name of the subfolder to which the copy target file belongs, and copy the copy target file corresponding to each lower layer of the created subfolder .
Here, the photographing data is moving image data including audio data. The photographing data is still image data that does not include audio data. Further, the photographing data has a JPEG data structure.
Further, the following invention is a method for copying photographic data when an image can be recorded and reproduced using a plurality of types of recording media, and the photographic data is transferred and copied between the plurality of types of recording media. A step of recording shooting data obtained by shooting the image data on one recording medium, and when copying the shooting data recorded on the one recording medium to another recording medium, a file of the shooting data to be copied is selected as a copy target file And if the copy destination recording medium does not have a DCIM folder, create the DCIM folder on the copy destination recording medium and create a subfolder to which the copy target file belongs below the created DCIM folder. and, while copying the copied file corresponding respectively to the lower layer of the subfolder created, the If there is the DCIM folder copy destination recording medium, subfolders serial numbers starting from the maximum number to 1. added number of numbers of the names of the existing subfolders following the lower layer of the DCIM folder, the copy target file belongs created by applying a numeric part of the name, which is the copy copy method of capturing data with a step of copying the target file, the corresponding respective lower layer of the subfolder created.
Here, the photographing data is moving image data including audio data. The photographing data is still image data that does not include audio data. Further, the photographing data has a JPEG data structure.

According to the present invention, when copying data between a plurality of recording media, the data structure of the copy destination is detected, reconstructed and written, so that data copying between recording media can be performed easily and safely. can do.
In addition, a new file name can be assigned to a recording medium as a data copy destination without requiring a display device or a keyboard for inputting characters unlike a PC.

Hereinafter, the best mode for carrying out the invention of a photographing apparatus and a photographing data copying method according to the present invention will be described with reference to preferred embodiments.

  FIG. 1 is a schematic block diagram showing the configuration of a video camera applied to the first embodiment. A configuration using a compact flash card (registered trademark: hereinafter referred to as a CF card) and an SD card as a recording medium will be described as an example. As shown in the figure, the video camera includes an optical system 11, an image sensor 12, an AFE block 13, an image processing circuit 14, a camera / JPEG encoder 16, a video encoder / decoder 17, a DV codec 18, an audio selector / microphone amplifier 19, CF card 20, on-screen display (OSD) 21, display 22, microphone 23, system CPU (central processing unit) 24, user interface (UI) 25, clock circuit (RTC) 26, power supply circuit (REG) 27, microcomputer (DSC) 28, audio ADC / DAC 30, SD card (memory card) 31, read only memory (ROM) 32, and synchronous dynamic random access memory (SDRAM) 33.

  First, an operation at the time of recording a moving image taken by a camera will be described. Incident light from the subject is imaged on the image sensor 12 via the optical system 11, and is photoelectrically converted here, for example, converted into a total of two channels of image signals corresponding to each divided screen when one screen is divided into two. After that, the signal is supplied to the AFE block 13 where the S / N is improved by correlated double sampling (CDS) for each channel, the level is adjusted by the automatic gain control operation, and the A / D by the A / D conversion operation. After being subjected to processing such as conversion, it is supplied as a digital video signal to the image processing circuit 14 and synthesized into an image of one screen.

  Further, the image processing circuit 14 is supplied with a clock signal having a constant frequency oscillated and output by an oscillator (OSC) 15, and generates a clock used for CDS and A / D conversion of the AFE block 13 based on this clock signal. This is supplied to the AFE block 13, and a vertical drive signal necessary for the image sensor 12 is generated and supplied to the image sensor 12. The horizontal drive signal of the image sensor 12 is supplied from the AFE block 13.

  A digital video signal (video signal) of one screen output from the image processing circuit 14 is supplied to a camera / JPEG encoder 16 where predetermined camera signal processing is performed and finally recording is performed. For example, the image size is converted into a moving image of effective pixels conforming to the digital video camera (DVC) standard and output. The video encoder / decoder 17 outputs the video signal supplied from the camera / JPEG encoder 16 as it is and supplies it to the DV codec 18.

  The DV codec 18 applies compression processing and shuffling processing based on the DV standard to the input video signal, adds various control data such as tracking information, time code, date and time information, and the audio selector / microphone amplifier 19. A / D conversion is added to the input audio signal, and an error correction code is added to generate a DV format signal, which is then modulated into a signal format suitable for recording and then supplied to the CF card 20 for recording. To do.

  At this time, the video encoder / decoder 17 outputs characters necessary for device operation with respect to the input video signal from the on-screen display (OSD) 21 and internally synthesizes the standard format (NTSC format etc.) video signal. And is output to a display device (view finder, liquid crystal display device, etc.) 22 for displaying the main body and also output to the outside as a video signal. The sound collected by the microphone 23 is subjected to acoustic-electrical conversion by the microphone 23 and then supplied to the DV codec 18 after gain adjustment by the sound selector / microphone amplifier 19. Recorded on the card 20.

  The system CPU (central processing unit) 24 is configured to control the power supply circuit (REG) 27 based on data from a user interface (UI) 25 such as operation switches and sensors, and a clock signal from the clock circuit (RTC) 26. The other blocks are centrally controlled by a control signal of a microcomputer (DSC) 28 and a signal line (not shown).

  Next, the recording signal reproduction operation will be described. The signal reproduced in the CF card 20 is demodulated and error-corrected by the DV codec 18, and the reproduced moving image signal is temporarily output to the camera / JPEG encoder 16 after being subjected to expansion processing and deshuffling processing based on the DV standard. The reproduced audio signal is D / A converted by the DV codec 18, supplied to the audio selector / microphone amplifier 19, amplified, and then subjected to electro-acoustic conversion by the speaker 29 to be sounded.

  The camera / JPEG encoder 16 performs zooming, still processing, and the like on the input reproduction moving image signal as necessary, and then outputs to the video encoder / decoder 17, and from this, a moving image tape photographed by the camera In the same manner as in the recording mode, the image is output to the display unit 22 or the outside and viewed.

  It should be noted that, during the same operation as the camera moving image tape recording mode or during tape playback, it is also possible to record moving images and audio signals to the SD card (memory card) 31. For example, in the camera moving image tape recording mode, a moving image signal is output from the camera / JPEG encoder 16 to the DSC 28. An audio signal is input from the audio selector / microphone amplifier 19 to the audio ADC / DAC 30, where it is A / D converted and then output to the DSC 28.

  The DSC 28 compresses moving image signals such as MPEG4 after conversion to a predetermined size / frame rate that can be handled by a PC tool, and can also handle audio signals using a PC tool. After compression after conversion to the sampling rate and the number of bits, the compressed moving image data and audio data are collected into one file and written to the SD card 31. At this time, the read only memory (ROM) 32 connected to the DSC 28 is used as a program code, and the synchronous dynamic random access memory (SDRAM) 33 is used as an image buffer and a work area.

  During playback of the SD card 31, is moving image data and audio data recorded on the SD card 31 separated and expanded by the DSC 28, and is the moving image signal displayed on the display 22 via the video encoder / decoder 17? Alternatively, the audio signal is output to the outside, and the audio signal is generated by the speaker 29 via the audio selector / microphone amplifier 19 after D / A conversion by the audio ADC / DAC 30.

  Also, still images can be recorded on the SD card 31 when performing the same operation as the camera video tape recording mode or during tape playback. For example, the video signal is taken into the camera / JPEG encoder 16 in the same manner as the tape recording mode of the camera moving image, and JPEG compression is performed here. Thereafter, the JPEG compressed data is transferred to the image processing circuit 14 via the external bus, and further transmitted to the DSC 28 by high-speed serial transfer. Then, the DSC 28 converts the received JPEG data into a file and records it on the SD card 31.

  When playing back a still image from the SD card 31, the JPEG data read from the SD card 31 is JPEG decompressed by the DSC 28, and then converted to a size that conforms to the standard television standard before the video encoder. / Displayed on the display 22 via the decoder 17 or output to the outside as a video signal.

  In the above description, an example is given in which the CF card is a DV format signal and the SD card is an MPEG4 signal. However, the CF card and the SD card may have the same signal format, and a plurality of signal formats such as images, audio, and other data. It is good also as a structure with mixed.

  Next, the operation of copying and moving image data between the recording media of the CF card and the SD card using the video camera 1 of the embodiment that performs the above recording / reproducing operation will be described with reference to the flowchart of FIG. Will be described in detail.

  When the data transfer operation is started, first, copying (copying) or movement (move) is selected (S201). When copy is selected (S201 copy), the copy source and copy destination recording media are selected (S202). Then, data to be copied is selected from the copy source recording medium. First, the file type of still image, moving image, or audio is selected (S203), and the file unit is selected as the total file unit, the selected file unit, the folder unit, or the selected playlist unit (S204).

  After the data to be copied is determined, the determined data is temporarily stored in the SDRAM 33 from the copy source recording medium (S205). Here, it is confirmed whether or not to copy again (S206). When selection not to perform copying is made (No in S206), the process returns to the start scene (S201).

  When the copy is selected (S206 Yes), it is checked whether the copy destination recording medium has the same file name and folder name as the previous copy finalized data. If there is, the copy finalized data once stored in the SDRAM 33 is checked. The file name and folder name are changed (S207).

  An example of the procedure (S207) for changing the file name and folder name will be described with reference to FIG. It is assumed that copying is performed in units of files. FIG. 4A shows a copy target file of the copy source medium. (B) shows a copy example when the copy destination medium has no directory structure, and (c) shows a copy example when the copy destination medium has a directory structure.

  As shown in FIG. 5A, a copy target file is selected from copy source media. When the above-mentioned copy is selected, the selected file is temporarily stored in the SDRAM 33 and the directory structure of the copy destination medium is detected. If there is no directory structure as shown in (b), a “DCIM” folder is created. The subfolder “*** JVCSO” is created sequentially from 100, and the file name is copied without change, that is, written to the copy destination medium (S208).

  As shown in (c), when the directory “DCIM” already exists, copying is performed in a layer below “DCIM”. Further, when the subfolder “100JVCGR” exists, the folder name is assigned from the maximum folder number + 1. Then, as shown in (c), the folder structure and file name are maintained and copied, that is, written to the copy destination medium (S208).

  Next, data movement will be described. When the move is selected (S201 move), the recording medium of the move source and the move destination is selected (S210). Then, the data to be moved is selected from the original recording medium. First, a file type of a still image, a moving image, or an audio is selected (S211), and it is selected whether the file unit is an entire file unit, a selected file unit, a folder unit, or a selected playlist unit (S212).

  After the data to be moved is determined, the determined data is temporarily stored in the SDRAM 33 from the move source recording medium (S213). Here, it is confirmed whether or not to move again (S214). When selection not to perform the move is made (No in S214), the process returns to the start scene (S201).

  If the move is selected (S214 Yes), it is checked whether the move destination recording medium has the same file name and folder name as the previous move confirmation data. If there is, the move confirmation data temporarily stored in the SDRAM 33 is checked. The file name and folder name are changed (S215).

  The procedure for changing the file name and folder name (S215) is the same as in the case of the copy described above. A case where the file is moved in units of files will be described with reference to FIG. FIG. 4A shows a move target file of the move source medium. (B) shows an example of a move when the move destination medium has no directory structure, and (c) shows an example of a move when the move destination medium has a directory structure. Read as above.

  If there is no directory structure as shown in (b), a “DCIM” folder is created. The subfolder “*** JVCSO” is created sequentially from 100, and the file name is written to the move, that is, the move destination medium without changing the file name (S216).

  As shown in (c), when the directory “DCIM” already exists, the move is performed below “DCIM”. Further, when the subfolder “100JVCGR” exists, the folder name is assigned from the maximum folder number + 1. Then, as shown in (c), the folder structure and file name are maintained and written to the move, that is, the move destination medium (S216).

  In the case of a move, after data is written to the move destination medium, the data of the move source medium is deleted (S217).

  In the above description, an example of copying or moving still images in file units in selected file units has been described. However, moving image or audio files, file units in all file units, folder units, or selected playlist units You may go on. Also in these cases, when the copy or move destination medium does not have a directory structure, a case where the directory structure exists is detected, and folders and subfolders are assigned so as to inherit the directory structure of the copy or move source medium as much as possible.

  In FIG. 3, the file name is displayed and selected. However, the file may be divided and displayed on the display surface, so-called thumbnail display, and visually selected.

An example in which a designated file name is input when copying or moving will be described with reference to FIG.
It is conceivable to use a PC when copying or moving data of a recording apparatus equipped with one type of normal recording medium. However, if a file with the same name exists on the copy or move source and the copy or move destination when using a PC, the message “A file with the same name exists. Do you want to overwrite it? Yes / No” is displayed and overwritten. Or there is only an option to end the operation. When copying or moving, it is necessary to change the file name of the copy or move once and then copy or move again. Alternatively, after creating a different directory or folder at the copy or move destination, it is necessary to copy or move again.

  The video camera according to the present invention is equipped with a plurality of recording media, and copying or moving of data is started by the user inputting a command. It is a loss. Therefore, in addition to the configuration in which the file name is automatically changed as in the first embodiment, the configuration is such that a designated file name is input when copying or moving.

This is a step corresponding to S207 and S215 in FIG. 4A shows a display for determining and selecting a copy or move, FIG. 4B shows a display of a file name input scene, and FIG.
When execution is selected in (a), a file name input scene as shown in (b) is displayed. In the case of the video camera applied to the present embodiment, a small device whose display screen cannot be enlarged is assumed. As shown in (b), it is possible to cope with a limited display screen by configuring the keyboard to be displayed and selected.

  (B) Screen Select a character directly or use the up / down / left / right keys to input a file name. When input is completed, select the enter key. When the file name is determined, the data selected with the file name determined as the copy or move destination is written, and in the case of copy, the operation ends, and in the case of move, the data at the move source is deleted and the operation ends.

  A third embodiment equipped with a magnetic tape, a CF card, and an SD card will be described with reference to FIG. In the first and second embodiments described above, an example in which a CF card or an SD card is used as a recording medium has been described. However, a video camera equipped with a magnetic tape, a CF card, or an SD card may be used. As shown in the figure, the DVC deck 50 is connected to the DV codec 18, and the CF card 20 is connected to the DSC 28 in parallel with the SD card 31.

  In the first and second embodiments, two types of recording media have been described. In the third embodiment, three types of recording media have been described. However, a configuration in which a large number of recording media are provided may be employed. Moreover, it is good also as a structure which can use a some recording medium by making a recording media connection part into a common structure.

  Further, the first embodiment and the second embodiment may be combined to have a configuration in which a file name is automatically assigned and a configuration in which a file name is input so that selection is possible.

  In each embodiment, a video camera has been described as an example. However, the data structure is not limited to the DV standard and JPEG, and any data structure may be used. .

It is the schematic block diagram which showed the structure of the video camera applied to Example 1 and Example 2. FIG. It is a flowchart for demonstrating the operation | movement which copies and moves data between recording media. It is a figure for demonstrating an example of the procedure which changes a file name and a folder name. It is a figure for demonstrating an example of the procedure which inputs a file name and a folder name. 10 is a schematic block diagram illustrating a configuration of a video camera applied to Embodiment 3. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Optical system 12 ... Image pick-up element 13 ... AFE block 14 ... Image processing circuit 16 ... Camera / JPEG encoder 17 ... Video encoder / decoder 18 ... DV codec 19 ... Audio selector / microphone amplifier 20 ... CF card 21 ... On-screen display ( OSD)
22 ... Display 23 ... Microphone 24 ... System CPU (Central Processing Unit)
25 ... User interface (UI)
26 ... Clock circuit (RTC)
27. Power supply circuit (REG)
28 ... Microcomputer (DSC)
30 ... ADC / DAC for voice
31 ... SD card (memory card)
32 ... Read only memory (ROM)
33 ... Synchronous dynamic random access memory (SDRAM)

Claims (8)

An imaging device capable of recording and reproducing images using a plurality of types of recording media and transferring imaging data between the plurality of types of recording media,
Photographing means for photographing a subject and outputting photographing data;
Recording means for recording the image data on a recording medium;
A selection unit that selects a file of shooting data to be copied as a file to be copied when the shooting data recorded on the one recording medium is copied to another recording medium;
When the copy destination recording medium does not have a DCIM folder, the DCIM folder is created on the copy destination recording medium, and a subfolder to which the copy target file belongs is created below the created DCIM folder. When the copy target file corresponding to the lower layer of the subfolder is copied, and the DCIM folder is present in the copy destination recording medium, the maximum number in the numerical part of the name of the existing subfolder following the lower layer of the DCIM folder is set. A copy means for creating a serial number starting with a number added with 1 as a numerical part of the name of the subfolder to which the copy target file belongs, and copying the copy target file corresponding respectively to the lower layer of the created subfolder ; ,
A photographing apparatus having The imaging device according to claim 1,
The photographing apparatus, wherein the photographing data is moving image data including audio data. The imaging device according to claim 1,
The photographing apparatus, wherein the photographing data is still image data not including audio data. In the imaging device according to any one of claims 1 to 3,
The photographing apparatus has a JPEG data structure. A method of copying photographic data when recording and reproducing images using a plurality of types of recording media, and transferring and copying photographic data between the plurality of types of recording media,
Recording the shooting data of the subject on one recording medium;
When copying the shooting data recorded on the one recording medium to another recording medium, selecting a shooting data file to be copied as a file to be copied ;
When the copy destination recording medium does not have a DCIM folder, the DCIM folder is created on the copy destination recording medium, and a subfolder to which the copy target file belongs is created below the created DCIM folder. When the copy target file corresponding to the lower layer of the subfolder is copied, and the DCIM folder is present in the copy destination recording medium, the maximum number in the numerical part of the name of the existing subfolder following the lower layer of the DCIM folder is set. Creating a sequential number starting with a number to which 1 is added as a numerical part of the name of the subfolder to which the copy target file belongs, and copying the copy target files respectively corresponding to the lower layer of the created subfolder ;
A method for copying shooting data. The method of copying shooting data according to claim 5,
The method of copying shooting data, wherein the shooting data is moving image data including audio data. The method of copying shooting data according to claim 5,
A method of copying shooting data, wherein the shooting data is still image data not including audio data. In the copy method of photographing data according to any one of claims 5 to 7,
The shooting data is a JPEG data structure, and the shooting data copying method.

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