JP2007151023A - Recording apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent contents from being overlapped in converted moving image data even when conversion of a still picture into a moving image and still picture photographing are repeated. <P>SOLUTION: A recording apparatus comprises: a reproducing means for reproducing a plurality of still image data recorded on a recording medium; a conversion means for converting still image data reproduced by the reproducing means into moving image data and outputting them as still picture movie data; a recording means for recording on the recording medium the still picture movie data outputted from the conversion means; and a control means for selecting still image data which are not converted into still picture movie data by the conversion means, from among the still image data recorded on the recording medium and controlling the conversion means so as to convert the selected still image data into still picture movie data. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a recording apparatus, and more particularly to an apparatus capable of recording a moving image and a still image on a recording medium.

2. Description of the Related Art Conventionally, a video camera that captures a moving image or a still image and records and reproduces it on a magnetic tape or a memory card is known.
In recent years, disk video cameras using a disk medium such as a DVD have also appeared.

  As described above, even in a disc video camera using a DVD, it is conceivable to record a still image in addition to a moving image on a single disc. As a format for recording moving image data on a DVD, standards such as a DVD video format and a DVD video recording (VR) format are defined. By recording moving image data in such a format, a moving image shot by a video camera can be reproduced by another disc player that complies with the standard.

  On the other hand, there is no standard such as DVD video format or VR format for still image data. Since the file system of the DVD is UDF in a general PC or the like, the form in which captured still image data is encoded by the JPEG method and recorded as a JPEG file in accordance with the UDF standard is common.

  However, the JPEG file recorded in this way is different from the standard of moving image data, and therefore cannot be reproduced by a general DVD player.

Therefore, it is considered that still image data recorded in the JPEG file format is converted into an MPEG I picture and recorded in a DVD video format or a VR format as moving image data indicating a slide show. (For example, see Patent Document 1)
JP 2004-201170 A

  In Patent Document 1, all still image data is read out at a timing according to an instruction from a user, converted into moving image format data, and additionally recorded.

  For this reason, once the still image data is converted and recorded in the moving image format after recording, the additional still image data is converted into the previously converted moving image format data. It will not be included.

  Therefore, if a conversion instruction is given again after additional still images have been taken, this time, the previous converted still image is duplicated and converted to video format data.

  In this way, when the conversion instruction to the moving image format and the still image shooting are repeated, the still image data (hereinafter referred to as still image movie) converted into the moving image format in which some contents are duplicated on the disc. Many will be recorded.

  Therefore, at the time of reproduction, the user has to search for a desired one among these many still image movies.

  Further, some of these many still image movies overlap with each other, and the recording capacity of the disc is wasted.

  The present invention solves such a problem and can prevent duplication of contents in converted moving image data even when conversion of a still image into a moving image and still image shooting are repeated. The purpose is to provide.

  Another object of the present invention is to provide an apparatus that allows a user to easily recognize when the contents of a still image movie overlap.

  Reproduction means for reproducing a plurality of still image data recorded on a recording medium, conversion means for converting still image data reproduced by the reproduction means into moving image data, and outputting it as still image movie data, and the conversion means Recording means for recording the still image movie data output from the recording medium, and still image data recorded on the recording medium that has not been converted to the still image movie data by the conversion means And control means for controlling the converting means to select and convert the selected still image data into the still image movie data.

  According to the present invention, content does not overlap between converted moving image data, so that a desired still image movie can be easily reproduced and useless recording capacity can be prevented. .

FIG. 1 is a diagram showing a configuration of a disc video camera 100 according to an embodiment of the present invention.
In FIG. 1, reference numeral 101 denotes an imaging unit, which outputs moving images or still image data according to instructions from the system control unit 108. A microphone 102 outputs an audio signal related to the subject. Reference numeral 103 denotes an input / output unit that inputs and outputs image data and audio data to and from an external device. A display control unit 104 controls the display operation of the display 105. Reference numeral 106 denotes a display such as a liquid crystal panel. An MPEG processing unit 106 encodes the moving image data from the imaging unit 101 according to the MPEG2 system and decodes the reproduced MPEG data. As will be described later, the MPEG processing unit 106 also converts the reproduced still image data into the MPEG format to generate a still image movie. A JPEG processing unit 107 encodes the still image data output from the imaging unit 101 according to the JPEG method, and decodes and outputs the reproduced still image data.

  Reference numeral 108 denotes a system control unit that controls the operation of each unit of the video camera 100. An operation unit 109 has various switches such as a power switch, a menu switch, a recording trigger switch, and a still image movie conversion instruction switch. A format conversion unit 110 adds various data to MPEG-encoded moving image data and converts them according to the recording format of the disk D at the time of recording. At the time of reproduction, MPEG data is detected from the reproduction data and output to the MPEG processing unit 106, and each additional data is sent to the system control unit. Reference numeral 111 denotes a disk interface, which records and reproduces data with respect to the disk D. Reference numeral 112 denotes a bus, which is used for transmitting and receiving data between the respective units.

  In the video camera of this embodiment, a DVD is used as the disk D. In addition, when recording moving image data on the disk D, it is possible to select either the above-described DVD video format or DVD-VR format.

Next, processing at the time of shooting in the video camera 100 will be described.
First, the time of moving image shooting will be described.

  When the user turns on the power, the moving image data obtained from the imaging unit 101 is sent to the display control unit 104, and this moving image is displayed on the display 105. In this state, when the user operates a trigger switch for recording a moving image on the operation unit 109, moving image data from the imaging unit 101 and audio data from the microphone 102 are sent to the MPEG processing unit 106. The MPEG processing unit 106 encodes these moving image data and audio data in accordance with the MPEG2 system to generate an MPEG stream. Then, this MPEG stream is sent to the format converter 110.

  The format converter 110 adds various data defined in the recording format to the MPEG stream, converts the format, and sends the converted data to the disc I / F 111. The disk I / F 111 records the data sent from the format converter 110 on the disk D. Thereafter, when there is an instruction to stop moving image recording, data recording to the disk D is stopped. In this embodiment, a series of MPEG streams recorded from the start of recording to the stop of recording are recorded as one chapter. At the time of reproduction, it is possible to cue or search data in units of this chapter. In the DVD video format, a plurality of chapters are combined to create one title.

Next, the case of still image shooting will be described.
As described above, when the user operates the still image shooting switch of the operation unit 109 while the moving image from the imaging unit 101 is displayed on the display 105, the imaging unit 101 extracts one screen from the moving image data. , And sent to the JPEG processing unit 107.

  In the present embodiment, the number of pixels per screen of still image data is larger than the number of pixels of moving image data.

  The JPEG processing unit 107 encodes one-screen still image data sent from the imaging unit 101 according to the JPEG method, and sends the encoded data to the disc I / F 111 as a JPEG file. The disc I / F 111 records this JPEG file on the disc D in accordance with the DCF (Design rule for Camera File System) standard.

  Next, processing during reproduction will be described.

  When the user operates the operation unit 109 to instruct a thumbnail list display, the system control unit 108 controls the disc I / F 111 and the moving image data recorded on the disc D or the thumbnail (representative) image data of still image data. Play. The system control unit 108 also instructs the display control unit 104 to generate a list display screen using the reproduced thumbnail image data. The display control unit 104 generates a thumbnail list screen and displays it on the display 105.

  At this time, the user can select and display either the moving image thumbnail list or the still image thumbnail list.

  The user confirms the thumbnail list screen displayed on the display 105 in this manner, and operates the operation unit 109 to select desired image data and instruct reproduction.

  The system control unit 108 instructs the disk I / F 111 to reproduce the selected moving image data or still image data. The disk I / F 111 reproduces data designated from the disk D and outputs it to the MPEG processing unit 106 or the JPEG processing unit 107.

  The MPEG processing unit 106 decodes the reproduced MPEG data and outputs it to the display control unit 104. Also, the JPEG processing unit 107 decodes the reproduced still image data and outputs it to the display control unit 104.

  The display control unit 104 displays an image related to the reproduced moving image data or still image data on the display 105.

Next, still image movie generation processing will be described.
Reference numerals 201 to 205 in FIG. 2 denote still image data (still image files) recorded on the disk D, respectively. When the user operates the operation unit 109 at an arbitrary timing to instruct creation of a still image movie, moving image data 106 that displays the still images 201 to 205 for 3 seconds each is generated and recorded on the disk D.

  The still image movie generation process will be described below with reference to the flowchart of FIG.

  When there is an instruction to create a still image movie, the system control unit 108 detects all the still image files recorded on the disc D and acquires the total number N (S301). Then, 1 is set to the variable n (S302).

  Next, of the detected N still image files, it is detected whether or not a conversion flag (described later) is added to the nth still image file, and the nth still image file is converted into a still image movie. It is discriminate | determined whether it is (S303). If converted, the process proceeds to S308.

  On the other hand, if it has not been converted, the nth still image file is reproduced from the disk D (S304), decoded by the JPEG processing unit 107, and then stored in the MPEG processing unit 106 for 3 seconds. Conversion into MPEG data (S305). Then, the generated MPEG data is recorded on the disk D (S306). After the MPEG data is recorded on the disc D, a conversion flag indicating that the original n-th still image file recorded on the disc D has been converted into a still image movie is added (S307).

  Then, it is determined whether or not the number n of still image files is equal to the total number N. If n is less than N, 1 is added to n to return to the next still image file, and the process returns to S303. (S310).

  When all N still image files have been processed, the management information is updated so that the still image movie generated by the current processing is managed as one chapter. At this time, the top screen is designated as the thumbnail image of the still image movie created this time (S309).

The still image movie generated in this way can be reproduced by a general DVD player.
FIG. 4 shows a state in which still image shooting is performed after the five still image files are converted into still image movies as shown in FIG.

  In FIG. 4, reference numerals 401 to 403 denote still image files that are newly photographed after converting 201 to 205 into a still image movie.

  In this state, when a still image movie creation instruction is issued again, the total number 8 of still image files is detected in S301 of FIG. Then, a still image movie is created by the processing of S303 to S307. Here, since 201 to 205 have already been converted, a converted flag is added. Therefore, only the three still image files 401 to 403 that are newly photographed are converted into still image movies.

This is shown in FIG.
Reference numeral 404 in FIG. 5 denotes a newly generated still image movie, and there is no overlapping screen with the previously generated still image movie 206.

  In step S309, the management information is updated to manage the previously created still image movie 206 and the currently created still image movie 404 as separate chapters.

  As described above, in this embodiment, a flag is added to a created still image file, and the still image file to which the created flag is added is not converted into a still image movie.

  For this reason, it is possible to prevent duplicate still image movies from being created for still image files that have already been converted into still image movies, so that the recording capacity of the disc is not wasted.

  Next, a second embodiment will be described. Also in this embodiment, the video camera of FIG. 1 is used. The still image movie creation process of the present embodiment will be described with reference to the flowchart of FIG.

  When there is an instruction to create a still image movie, the system control unit 108 detects all the still image files recorded on the disc D and acquires the total number N (S601). Then, 1 is set to the variable n (S602).

  Next, it is determined whether or not there is a still image movie already recorded on the disc D (S603). If no still image movie has been recorded, the process proceeds to S607.

  On the other hand, when the still image movie has already been recorded, the creation date T of all the still image movies recorded on the disc D is detected based on the management information (S604). Also, the creation date and time t of the nth still image file is detected (S605). Then, it is determined whether or not the creation date and time t of the nth still image file is greater than the creation date and time T of all still image movies (S606).

  If the creation time t of the still image file is smaller, the nth still image file has already been converted into a still image movie, so 1 is added to n in order to process the next still image file (S612). ), The process returns to S603.

  On the other hand, if no still image movie is recorded in S603 and if the creation date and time of the still image file is larger (slower) in S606, the nth still image file is reproduced from the disk D (S607). Then, the JPEG processing unit 107 decodes the data, and the MPEG processing unit 106 converts the still image data into 3-second MPEG data (S608). The generated MPEG data is recorded on the disk D (S609).

  Then, it is determined whether or not the number n of still image files is equal to the total number N (S610). If n is less than N, 1 is added to n to process the next still image file. The process returns to S603.

  When all N still image files have been processed, the management information is updated so that the still image movie generated by the current processing is managed as one chapter. At this time, the top screen is designated as the thumbnail image of the still image movie created this time (S611).

  The still image movie generated in this way can be reproduced by a general DVD player.

  As shown in FIG. 2, when a still image movie creation instruction is issued in a state where no still image movie is recorded, all five still image files are converted into a still image movie and recorded.

  FIG. 4 shows a state where still image shooting is performed after converting the five still image files into the still image movie.

  As described above, in FIG. 4, reference numerals 401 to 403 denote still image files that are newly captured after converting 201 to 205 into a still image movie.

  In this state, when a still image movie creation instruction is issued again, the total number 8 of still image files is detected in S601 of FIG. Then, a still image movie is created by the processing of S603 to S610. Here, since 201 to 205 have already been converted, the creation date and time of the still image movie 206 and the creation dates and times of the still image files 201 to 205 and 401 to 403 are compared.

  As a result, only the three still image files 401 to 403 recorded after the creation of the still image movie 206 are converted into still image movies.

This is shown in FIG.
Reference numeral 404 in FIG. 5 denotes a newly generated still image movie, and there is no overlapping screen with the previously generated still image movie 206.

  In S611, the management information is updated to manage the previously created still image movie 206 and the currently created still image movie 404 as separate chapters.

  Next, a third embodiment will be described. Also in this embodiment, the video camera of FIG. 1 is used. Processing for creating a still image movie according to this embodiment will be described with reference to the flowchart of FIG.

  When there is an instruction to create a still image movie, the system control unit 108 detects all the still image files recorded on the disc D, and acquires the total number N (S701). Then, 1 is set to the variable n (S702).

  Next, it is determined whether or not a still image movie has already been recorded on the disc D (S703). If no still image movie has been recorded, the process advances to step S707.

  On the other hand, if the still image movie has already been recorded, the display control unit 104 displays the deletion confirmation screen 901 shown in FIG. 9 (S704). The user confirms this deletion confirmation screen 901 and operates the operation unit 109 to select the Yes button 901a or the No button 901b (S705). Here, if the No button 901b is selected, the process proceeds to S707. If the Yes button 901a is selected and there is an instruction to delete it, the still image movie recorded on the disc is deleted (S706).

  Then, the nth still image file is reproduced from the disk D (S707). Then, the JPEG processing unit 107 decodes, and the MPEG processing unit 106 converts the still image data into 3-second MPEG data (S708). The generated MPEG data is recorded on the disk D (S709).

  Then, it is determined whether or not the number n of still image files is equal to the total number N (S710). If n is less than N, 1 is added to n to process the next still image file. The process returns to S707.

  When all N still image files have been processed, the management information is updated so that the still image movie generated by the current processing is managed as one chapter. At this time, the top screen is designated as the thumbnail image of the still image movie created this time (S711).

  The still image movie generated in this way can be reproduced by a general DVD player.

  As shown in FIG. 2, when a still image movie creation instruction is issued in a state where no still image movie is recorded, all five still image files are converted into a still image movie and recorded.

  FIG. 8 shows a state where still image shooting is performed after converting the five still image files into the still image movie.

  In FIG. 8, reference numerals 801 to 803 denote still image files that are newly taken after converting 201 to 205 into a still image movie.

  In this state, when an instruction to create a still image movie is issued again, the still image movie 206 is detected in S703 in FIG. 7, and a deletion confirmation screen 901 is displayed in S704. Here, when the user instructs deletion, the already recorded still image movie 206 is deleted, and still image movies 804 generated from the still image files 201 to 205 and 801 to 803 are recorded.

  If there is no deletion instruction in S704, the still image movie 804 is recorded in addition to the still image movie 206. In this case, by updating the management information in step S711, the previously created still image movie 206 and the currently created still image movie 804 are managed as separate chapters.

  As described above, in this embodiment, when creating a still image movie, the user has already inquired whether or not to delete the still image movie. Therefore, the user can create a still image movie while recognizing the creation of overlapping still image movies.

It is a figure which shows the structure of the video camera in embodiment of this invention. It is a figure which shows a mode that a still image movie is produced | generated from a still image file. It is a flowchart which shows the creation process of a still image movie. It is a figure which shows a mode that a still image movie is produced | generated from a still image file. It is a figure which shows a mode that a still image movie is produced | generated from a still image file. It is a flowchart which shows the creation process of a still image movie. It is a flowchart which shows the creation process of a still image movie. It is a figure which shows a mode that a still image movie is produced | generated from a still image file. It is a figure which shows the screen of deletion selection of a still image movie.

Claims (10)

Reproducing means for reproducing a plurality of still image data recorded on a recording medium;
Conversion means for converting still image data reproduced by the reproduction means into moving image data and outputting as still image movie data;
Recording means for recording the still image movie data output from the conversion means on the recording medium;
The still image data recorded on the recording medium is selected from the still image data that has not been converted to the still image movie data by the conversion means, and the selected still image data is converted to the still image movie data. A recording / reproducing apparatus comprising control means for controlling the conversion means.   The recording means further records identification information indicating conversion completion for the still image data converted to the still image movie data, and the control means performs the still image movie data by the conversion means based on the identification information. 2. The recording / reproducing apparatus according to claim 1, wherein the recording / reproducing apparatus is selected not to be converted into an image.   The recording means further records information indicating the recording date and time of the still image movie data on the recording medium, and the control means records information on the recording date and time of the still image data recorded on the recording medium and the still image movie. 2. The recording / reproducing apparatus according to claim 1, wherein a data not converted into the still image movie data is selected by the conversion means based on a comparison result with data recording date / time information.   4. The recording / reproducing apparatus according to claim 3, wherein the control means selects the still image data that has a recording date later than the recording date of the still image movie data.   Input means for inputting moving image data; and the recording means further records the moving image data input by the input means to the recording medium, and the still image movie data is the same as the moving image data. The recording / reproducing apparatus according to claim 1, wherein the recording is performed in the recording format.   The recording means includes management information for managing still image movie data obtained by converting the selected still image data and still image movie data already recorded on the recording medium as independent search units. The recording / reproducing apparatus according to claim 1, wherein recording is performed on the recording / reproducing apparatus.   Instructing means for instructing creation of the still image movie data at an arbitrary timing, and the converting means creates the still image movie data in response to an instruction to create the still image movie data by the instruction means. The recording / reproducing apparatus according to claim 1. Reproducing means for reproducing a plurality of still image data recorded on a recording medium;
Conversion means for converting still image data reproduced by the reproduction means into moving image data in response to an instruction from the instruction means, and newly outputting as still image movie data;
Recording means for recording the still image movie data output from the conversion means on the recording medium;
A recording / reproducing apparatus comprising: deletion means for deleting the still image movie data already recorded on the recording medium in response to an instruction from the instruction means.   In response to an instruction from the instructing means, an inquiry means for inquiring whether or not to delete the still image movie data already recorded on the recording medium is provided, and the deletion means is instructed to delete as a result of the inquiry. In this case, the still picture movie data already recorded on the recording medium is deleted, and if the deletion is not instructed, the still picture movie data already recorded on the recording medium is not deleted. 9. The recording / reproducing apparatus according to claim 8, wherein the recording means is controlled to record newly generated still image movie data. Reproducing means for reproducing a plurality of still image data recorded on a recording medium;
Conversion means for converting still image data reproduced by the reproduction means into moving image data and outputting as still image movie data;
Recording means for recording the still image movie data output from the conversion means on the recording medium;
If the still image movie data has already been recorded on the recording medium, the converting means is provided to generate the still image movie data so that an image overlapping the already recorded still image movie data is not included. And a recording / reproducing apparatus.

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