WO2004047441A1 - 伝送装置と伝送方法と再生装置と再生方法およびプログラムと記録媒体 - Google Patents
伝送装置と伝送方法と再生装置と再生方法およびプログラムと記録媒体 Download PDFInfo
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- WO2004047441A1 WO2004047441A1 PCT/JP2003/014320 JP0314320W WO2004047441A1 WO 2004047441 A1 WO2004047441 A1 WO 2004047441A1 JP 0314320 W JP0314320 W JP 0314320W WO 2004047441 A1 WO2004047441 A1 WO 2004047441A1
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 157
- 238000000034 method Methods 0.000 title claims description 49
- 238000012545 processing Methods 0.000 claims description 135
- 238000012937 correction Methods 0.000 claims description 10
- 230000010365 information processing Effects 0.000 claims 1
- 230000005236 sound signal Effects 0.000 abstract description 21
- 238000003384 imaging method Methods 0.000 description 57
- 239000000463 material Substances 0.000 description 33
- 238000004891 communication Methods 0.000 description 22
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- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 16
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/34—Indicating arrangements
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/005—Reproducing at a different information rate from the information rate of recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
Definitions
- Transmission device transmission method, reproduction device, reproduction method, program, and recording medium
- the present invention relates to a transmission device, a transmission method, a reproduction device, a reproduction method, a program, and a recording medium.
- the content is generated by setting the frame rate higher than the reference frame rate, and the movement of the subject is reproduced by reproducing the content at the reference frame rate. Generate late expressed content.
- the frame rate is set lower than the reference frame rate to generate content, and the content is reproduced at the reference frame rate to generate content in which the motion of the subject is rapidly expressed. Furthermore, by adjusting the frame rate to be set and the frame rate at the time of playback, it is possible to freely change the movement speed of the subject.
- the producer can use not only the content generated at the reference frame rate but also the content at which the movement speed of the subject is changed so that the intended effect can be obtained when reproducing at the reference frame rate.
- Generate content
- a video camera capable of performing expansion and compression on the time axis so as to generate content with variable frame rates as described above is disclosed in, for example, Japanese Patent Application Laid-Open No. 11 1 770 30. There is.
- the content to be transmitted is the content generated so as to obtain the intended effect when reproduced at the reference frame rate, as in the case of broadcasting. For this reason, even if it is attempted to reproduce the content portion generated by varying the frame rate at a desired speed different from the speed intended by the author, this portion can not be reproduced at the desired speed. Disclosure of the invention
- the transmission apparatus comprises transmission data generation means for generating transmission data by concatenating adjunct information including frame rate information of the main data with main data indicating an image or sound. And transmission processing means for outputting transmission data through the path.
- the transmission method comprises: transmitting data generation steps of generating transmission data by connecting additional information including frame rate information of the main data to main data indicating an image and / or voice; And a transmission processing step of outputting the transmission data via the transmission data.
- the reproduction apparatus is a main data to be reproduced based on frame rate information of transmission data configured by connecting additional information including frame rate information of the main data to main data indicating an image and / or sound. It comprises setting means for setting a reproduction variable range indicating a range of data frame rates, and reproduction means for reproducing main data at a frame rate within the reproduction variable range.
- the reproduction method comprises: main data to be reproduced based on frame rate information of transmission data configured by connecting additional information including frame rate information of the main data to main data indicating an image and / or sound.
- a setting step for setting a playback variable range that indicates a range of data frame rates, and a frame rate within the playback variable range And a reproduction step of reproducing the main data.
- a program according to the present invention comprises a transmission data generation step of generating transmission data by concatenating additional information including frame rate information of the main data with main data indicating image data Z or sound. And causing the computer to execute a transmission method having a transmission processing step of outputting transmission data via the communication channel.
- the range of the frame rate of the main data to be reproduced is based on the frame rate information of the transmission data configured by connecting the additional information including the frame rate information of the main data to the main data indicating the image and / or the voice.
- the reproduction method includes the setting step of setting the reproduction variable range, and the reproduction step of reproducing the main data at the frame rate within the reproduction variable range.
- a recording medium is recorded with main data representing an image and Z or sound, with attached information including frame rate information of the main data connected.
- the additional data including the frame rate information of the main data is concatenated with the main data indicating the image or the audio Z and output as transmission data.
- the main data is temporarily stored, for example, and the stored main data is read according to the bandwidth of the transmission path, and the frame rate of the main data is adjusted.
- the frame rate information contained in the supplementary information is corrected and linked according to the adjustment.
- This additional information includes information indicating the recommended playback speed of the main data and information indicating the maximum playback speed of the main data.
- at least frame rate information and frame identification information of each frame included in the reference frame period are linked to the main data, and the frame identification information is used to respond to the notified bandwidth. By controlling the reading of the main data, the frame rate of the main data is adjusted.
- a reproduction variable range indicating the range of the frame rate of the main data to be reproduced is set based on the frame rate information, Main data is reproduced at a frame rate within this reproduction variable range. Also, if the additional information includes information indicating the recommended reproduction speed of the main data, and the user does not instruct the reproduction speed by the user, the recommended reproduction speed The main data is reproduced in degrees. In addition, when the additional information includes information indicating the maximum reproducible speed of the main data, the reproduction speed variable range is set using the information indicating the maximum speed. Also, the additional information includes frame identification information of each frame included in the reference frame period, and the main data reproduction speed is varied by performing thinning out and repetition on the main data using the frame identification information. Ru.
- the additional data including the frame rate information of the main data is concatenated with the main data indicating the image and Z or sound, and output as transmission data.
- a reproduction variable range indicating the range of the frame rate of the main data to be reproduced is set based on the frame rate information included in the attached information.
- Main data is played back at a frame rate within the playback variable range. Therefore, by linking the ancillary information to the reproducible part at a speed range different from the speed intended by the content creator, this part can be reproduced at a speed different from the speed intended by the content creator. can do.
- the main data is temporarily stored, and the stored main data is read according to the bandwidth of the transmission path to adjust the frame rate of the main data.
- the frame rate of the main data can be easily adjusted.
- the frame rate information included in the ancillary information is corrected according to the adjustment of the frame rate, ancillary information corresponding to the main data to be transmitted can be linked.
- the main data is played back at the recommended playback speed. You can specify the playback speed by the creator of.
- the variable range of reproduction speed is set using the information indicating the maximum speed. Can control the playback speed variable range.
- At least frame rate information and frame identification information of each frame included in the reference frame period are linked to the main data, and the frame identification information is used to make a frame rate of the main data.
- the frame identification information is used to make a frame rate of the main data.
- the playback speed of the main data is varied by thinning out and repeating the main data using the frame identification information. Therefore, the main data can be reproduced at a desired speed with a simple configuration.
- FIG. 1 is a diagram showing an overall configuration of a content transmission system.
- FIG. 2 is a diagram showing the configuration of an imaging device.
- FIG. 3 is a diagram showing an operation of adding subframe numbers.
- FIG. 4 is a view showing another configuration of the imaging device.
- 5A to 5E are diagrams showing the relationship (1) of attached information of video data.
- 6A to 6E are diagrams showing the relationship between video data and attached information (part 2).
- FIG. 7 is a diagram showing the configuration of the editing apparatus.
- FIG. 8 is a diagram showing the configuration of a content transmission apparatus.
- FIG. 9 is a diagram showing a configuration in the case of performing content transmission by software.
- FIG. 10 is a flowchart showing the content transmission processing operation.
- FIG. 11 is a diagram showing the configuration of a content reproduction apparatus.
- FIG. 12 is a diagram showing a configuration in the case where content reproduction is performed by software.
- FIG. 13 is a flowchart showing the content reproduction processing operation.
- FIG. 14 shows a display image of the content presentation apparatus.
- FIG. 15 is a flowchart showing setting operation of reproduction processing conditions for an image.
- 16A to 16M are diagrams showing an image reproduction operation (part 1).
- FIG. 17 to FIG. 17G are diagrams showing the image reproduction operation (part 2).
- 18A to 18M are diagrams showing an image reproduction operation (part 3).
- FIG. 19 is a flowchart showing setting operation of reproduction processing conditions for audio.
- Fig. 2 OA to Fig. 20 E are diagrams showing an audio reproduction operation (part 1).
- FIG. 21A to FIG. 21E are diagrams showing the audio reproduction operation (part 2).
- FIG. 1 shows the overall configuration of a content transmission system for transmitting content, eg, image and / or audio content.
- the imaging device 10 generates video data with a variable frame rate, links the attached information related to the video data, and supplies the linked data as material data D Tm to the editing device 30.
- the voice input device 20 when the voice input device 20 is provided in the imaging device 10, it generates voice data, and this voice data is also supplied to the editing device 30 as material data D Tm.
- the material data D Tm may be supplied not only from the imaging device 10 but also from other devices.
- the editing device 30 performs an editing process using the supplied material data D Tm to generate data indicating an image / video or sound desired by the editor. Also, this image and / or sound is generated.
- the data indicating the data is used as main data, and additional information is connected to the main data to generate content data DC for transmission and supply it to the content transmission apparatus 50.
- the editing device 30 generates a video signal S vm related to editing and supplies the video signal S vm to the edited image display device 4 0.
- the user can confirm the progress of the editing of the image, the editing result, and the like by the display image on the editing image display device 40.
- an audio signal S am relating to editing is generated and supplied to the editing audio output device 41.
- the user can confirm the progress of the editing of the sound and the editing result by the sound output from the editing sound output device 41.
- the content transmission device 50 stores the content data DC supplied from the editing device 30. Also, for example, when a request for content data is made from the content reproduction device 70, the frame rate of the content data is adjusted according to the bandwidth of the transmission path 60, and the transmission data D Tc is based on the content data after frame rate adjustment. , And supplies this transmission data D.sub.Tc to the content reproduction apparatus 70 via the wired or wireless transmission path 60.
- the content reproduction device 70 generates a video signal S vz and an audio signal S az of content based on the transmission data D Tc supplied via the transmission path, and supplies the video signal S vz and the audio signal S az to the content presentation device 80. Also, the content reproduction device 70 is based on the attached information. Control the playback operation of
- the content presentation device 80 presents content by performing image display based on the video signal S vz and audio output based on the audio signal S az.
- “concatenation” may be in a state in which the main data and the attached information including frame rate information related to the main data are linked to each other. For example, even if the main data and the attached information are transmitted as transmission data through another transmission path, if the frame number corresponding to the attached information is included, they will be associated with each other later. be able to. In this embodiment, it is said that the connection is made including such a case.
- FIG. 2 shows a configuration example of the imaging device 10.
- the light incident through the imaging lens system 11 is incident on the imaging unit 12, and a subject image is formed on the imaging surface of an imaging element such as a CCD (Charge Coupled Device) provided in the imaging unit 12.
- the imaging device to be imaged generates an imaging charge of an object image by photoelectric conversion.
- the imaging unit 12 also reads out the generated imaging charge based on a drive signal CR from a timing generator 14 2 described later, generates an imaging signal Sp at a frame rate according to the drive signal CR, and performs signal processing. It is supplied to the camera processing circuit 1 3 1 of part 13.
- the camera processing circuit 1 31 performs various signal processing in synchronization with the imaging signal Sp based on the timing signal C T supplied from the timing generator 1 42.
- the camera processing circuit 113 performs processing of removing noise components from the imaging signal Sp by performing correlated double sampling or the like, processing of converting the imaging signal Sp from which noise has been eliminated into digital image data, It performs clamp processing of image data, shading correction, defect correction of the image sensor, ⁇ processing, contour compensation processing, knee correction processing, and the like.
- the camera processing circuit 13 performs various signal processing under processing conditions and the like based on the operation control signal C S supplied from the imaging control circuit 14 1 of the control unit 14. As described above, the video data D V obtained by performing various signal processing in the camera processing circuit 13 1 is supplied to the output unit 15.
- the timing generator 14 2 of the control unit 14 generates a drive signal CR according to the operation control signal CS of the imaging control circuit 14 1, etc., and supplies the drive signal CR to the imaging unit 12.
- the readout cycle of the imaging charge in the unit 12 is varied to The frame rate is controlled to the set frame rate FRs based on the operation signal PS a from the user interface unit 16.
- the timing generator 142 uses, for example, the frame rate FRs as the frame rate of the reference frame rate FRr as the frame frequency of the frame frequency of 50 Hz or 25 Hz as the frame frequency of 59.94 Hz or 29.97 Hz for the NT SC method and 50 Hz or 25 Hz for the PAL method.
- the frame rate of the imaging signal Sp is controlled to be k times the reference frame rate FRr.
- the period of the readout pulse (sensor gate pulse) for moving the imaging charge accumulated in each pixel from each pixel of the imaging device such as CCD to the transfer unit is changed, or the like.
- the read cycle is varied and the frame rate is varied.
- CDR Common Data Rate
- the effective frame rate can be varied, but the frame rate of the signal output from the CCD can be kept unchanged, and the processing rate of the camera processing circuit 131 or the like can be kept constant.
- This CDR system is disclosed in the PCT application, application number PCT / JP03 / 00551, 2003/1/22.
- the timing generator 142 generates a timing signal CT synchronized with the drive signal CR and supplies the timing signal CT to the camera processing circuit 131 and the audio processing circuit 132. Furthermore, the timing generator 142 generates frame rate information DM-FRs indicating the set frame rate FRs, which is the frame rate of the video data DV, and supplies the frame rate information DM-FRs to the output unit 15. The timing generator 142 also generates subframe number BN. This subframe number BN is a number that enables identification of each frame included in the frame period of the reference frame rate FRr when the set frame rate FRs is increased with respect to the reference frame rate FRr. This subframe number BN is supplied to the output unit 15 as frame identification information DM-BN.
- FIG. 3 is a flow chart showing the addition operation of the subframe number in the timing generator 142.
- the timing generator 142 divides the oscillation signal of a predetermined frequency, for example, and synchronizes and sets the frame period of the reference frame rate FRr and the frame period of the set frame rate FRs, and sets the frame period of the set frame rate FRs. Drive signal generation and reference frame rate FRr based on Generation of frame reference timing indicating the division of the frame period.
- the timing generator 142 identifies whether or not the frame reference timing is detected in step ST1. If the reference timing is detected here, the process proceeds to step ST2. When the reference timing is not detected, the process returns to step ST 1.
- step ST2 When the frame reference timing is detected in step ST1 and the process proceeds to step ST2, the timing generator 142 initializes the subframe number BN in step ST2, and sets the subframe number BN to an initial value, for example, "0". Set and proceed to step ST3.
- step ST3 the timing generator 142 determines whether or not the frame reference timing has been detected by the time when one frame period of the set frame rate FRs has elapsed since the frame reference timing was detected.
- the process proceeds to step ST4, the timing generator 142 adds "1" to the subframe number BN, updates the subframe number BN, and returns to step ST3. .
- subframe numbers BN are sequentially assigned every one frame period of the set frame rate FRs.
- a user interface unit 16 is connected to the imaging control circuit 141 of the control unit 14 shown in FIG. When an operation switching operation or a frame rate variable operation in the imaging device 10 is performed, the user interface unit 16 generates an operation signal PSa corresponding to the operation and supplies the operation signal PSa to the imaging control circuit 141.
- the user interface unit 16 also receives an operation signal P Sa from an external device such as a remote controller (not shown). When supplied, this operation signal P Sa is supplied to the imaging control circuit 141.
- the imaging control circuit 141 generates an operation control signal CS based on the operation signal P Sa from the user interface unit 16 so that the operation of the imaging device 10 becomes an operation corresponding to the operation signal PS a, and the camera processing circuit 1 Supply to 31 and timing generator 142.
- the audio processing circuit 132 is supplied with an analog audio signal Sin from the audio input device 20.
- the audio processing circuit 132 performs sampling processing of the audio signal Sin based on the timing signal CT supplied from the timing generator 142, generates digital audio data DA, and supplies it to the output unit 15.
- the output unit 15 generates an attached information DM including frame rate information DM-FRs and frame identification information DM-BN, and links it to video data DV and audio data DA to generate material data DTm to be edited.
- the attached information DM may include information indicating the imaging date and time, imaging conditions, imaging content, and the like.
- the video data stream It is conceivable to insert additional information DM into the header, or to insert additional information DM into the header of the data stream.
- SDTI Supplemental Data Transport Interface
- SDT I CP Standardized as "Television-Serial Data Transport Interface (SDTI)" If you use SDT I CP format standardized as SMP TE 326M television-SDTI Content Package Format (SDTI-CP), which further limits SDT I format and SDT I format, add information DM to SMP TE 33 OM television-Inserts into the signal of each format as UM ID data standardized as “Umical Material Identifier (UMID)”.
- UM ID data standardized as “Umical Material Identifier (UMID)”.
- the method of connecting the adjunct information DM to the video data DV and the audio data DA is not limited to this, and various methods can be considered, and the present invention is not limited to the above example.
- linkage is something that shows the relationship between them in some way, that is, it is good if links can be taken. For example, even if they are sent via different transmission paths, they can be related as long as they have the same UMI D, which is
- the above-described imaging device 10 generates the material data D Tm of a desired set frame rate FRs by changing the readout period of the imaging charge in the imaging unit 12, and the set frame rate FRs is continuously generated. Can be varied. However, if it is only necessary to change the set frame rate FRs in a step-like manner, it is possible to generate material data DTm of a desired set frame rate FRs by performing frame skipping. That is, the frame rate is higher than the set frame rate FRs, and the video data DVa having a constant frame rate is generated, and the video data is extracted from the video data DVa by the set frame rate FRs. Video data DV of rate FRs can be generated. The configuration in this case is shown in Fig.4. In FIG. 4, the parts corresponding to those in FIG. 2 are assigned the same reference numerals and detailed explanations thereof will be omitted.
- the timing generator 182 of the control unit 18 generates a drive signal C Ra corresponding to the maximum value of the set frame rate F Rs set via the user interface unit 16 and supplies the drive signal C Ra to the imaging unit 12.
- the imaging unit 12 generates an imaging signal based on the drive signal CRa, generates an imaging signal Spa of a fixed frame rate FRq whose frame rate is higher than the reference frame rate FRr, and generates a camera processing circuit of the signal processing unit 17. Supply to 1 3 1
- the imaging unit 12 when the set frame rate FRs can be changed to n (n is a positive number) times of the reference frame rate FRr, the imaging unit 12 generates an imaging signal Spa having a frame rate of n times the reference frame rate FRr.
- the camera processing circuit 13 Supply to 1. That is, the imaging unit 12 generates an imaging signal Spa having a fixed frame rate without being influenced by the set frame rate FRs set via the user interface unit 16.
- the timing generator 182 generates a timing signal CTa synchronized with the drive signal CRa, and supplies the timing signal CTa to the camera processing circuit 131 of the signal processing unit 17, the sound processing circuit 132 and the effective frame signal generation circuit 183.
- the camera processing circuit 131 supplies the video data DVa of the fixed frame rate FRq generated based on the imaging signal Spa to the effective data selection circuit 171.
- the audio processing circuit 132 performs sampling based on the constant frequency timing signal CTa and supplies the generated audio data DAa to the effective data selection circuit 171.
- the imaging control circuit 181 generates a setting information signal CF indicating the setting frame rate FRs based on the operation signal P Sa from the user interface unit 16 and supplies the setting information signal CF to the effective frame signal generation circuit 183.
- the effective frame signal generation circuit 183 extracts data from the video data DVa in frame units based on the ratio of the frame rate FRq, which is a fixed value of the video data DVa, to the set frame rate FRs indicated by the setting information signal CF.
- An extraction control signal CC is generated to generate video data DV of the set frame rate FRs. Further, the effective frame signal generation circuit 183 supplies the extraction control signal CC to the effective data selection circuit 171 in synchronization with the timing signal CTa.
- the effective frame signal generation circuit 183 From the DVa, an extraction control signal CC for extracting data in frame units is generated every one frame, and is supplied to the valid data selection circuit 171 in synchronization with the timing signal CTa.
- the effective frame signal generation circuit 183 generates frame rate information DM-FRs indicating the set frame rate FRs based on the setting information signal CF, and supplies the frame rate information DM-FRs to the output unit 15. Furthermore, since the number of frames in the frame period of the reference frame rate FRr can be identified by the extraction control signal CC, the effective frame signal generation circuit 1 83 can generate the frame for each frame period of the reference frame rate FRr.
- the subframe number BN is set, and this subframe number BN is also supplied to the output unit 15 as frame identification information DM-BN.
- the effective data selection circuit 171 extracts the video data DVa and the audio data DAa of the frame indicated by the extraction control signal CC, and supplies the video data DV and the audio data DA to the output unit 15 as the video data DV and the audio data DA. Also, although not shown, frame rate information DM-FR indicating the set frame rate FRs is supplied from the effective frame signal generation circuit 183 to the effective data selection circuit 1 ⁇ 1 and the setting is performed by the effective data selection circuit 171.
- the audio data DAa may be thinned according to the ratio between the frame rate FRs and the frame rate when the audio data DAa is generated.
- the frame rate FRq at which the voice data D Aa is generated is n times the reference frame rate FRr, and the set frame rate FRs is (n / 2) times the reference frame rate FRr, voice data DAa is generated.
- the decimation interval can be made smaller than in the case of decimating the audio data in frame units, so that the sound based on the audio data DA can be made to have a good sound quality.
- the video data DV may be generated by adding video data for each predetermined frame.
- the frame rate variable range of the imaging signal Sp can be narrowed. That is, if the imaging signal Sp for n frames is added and the signal level is multiplied by (lZn), the frame rate of the imaging signal Sp is not reduced by 1 / n, It is possible to obtain a signal multiplied by Zn).
- the set frame rate F Rs may be, for example, one time the reference frame rate F Rr or If it is doubled, the frame rate information DM-FRs of FIG. 5C showing the set frame rate FRs with respect to the video data DV shown in FIG. 5B (in the figure, a frame image based on the video data DV is shown).
- Attached information DM including the frame identification information DM-BN shown in Fig. 5D showing subframe number BN is concatenated.
- Fig. 5E shows the relationship between time lapse and frame images.
- the frame rate information DM-FRs may indicate not only the setting frame rate FRs but also the scaling factor of the setting frame rate FRs with respect to the reference frame rate FRr.
- the video data DV shown in FIG. 6B (frames based on the video data DV in the figure
- the frame rate information DM-FRs of FIG. 6C showing the set frame rate FRs, and the subframe identification information DM-BN of FIG. 6D showing the subframe number BN. are linked.
- Figure 6 E shows the relationship between time lapse and frame image.
- FIG. 7 shows the configuration of the editing device 30.
- the material data D Tm supplied to the editing device 30 is supplied to the information detection circuit 31 1 of the material taking-in unit 31.
- the information detection circuit 311 detects the attached information DM from the material data DTm.
- the detected additional information DM is supplied to the database processing circuit 312.
- the video data DV and the audio data DA included in the material data DTm are supplied to the database processing circuit 312.
- the database processing circuit 312 associates the video data DV, the audio data DA, and the attached information DM detected by the information detection circuit 311, and stores them in the data storage device 321 of the editing processing unit 32. Also, the database processing circuit 312 can easily execute the contents of the material data based on the additional information DM stored in the data storage device 321 and the video data DV and audio data DA related to the additional information DM.
- Database information DB that can be confirmed is generated and supplied to the editing control unit 33.
- database information DB is information from which information of material data can be identified (for example, thumbnail), time length of material data, set frame rate FRs, subframe number BN, storage location in data storage device 321, etc. It is comprised.
- the editing control unit 33 generates video output signals by generating video data DVg for enabling editing processing in a GU I (Graphical User Interface) environment, and video data DVi for displaying the contents of database information. Supply to the circuit 351.
- the video output signal generation circuit 351 generates a video signal Svm based on the supplied video data DVg, DVi, and outputs the video signal Svm to the edited image display device 40.
- the video signal Svm to the edited image display device 40, it is possible to display on the screen of the edited image display device 40 what material data is stored and the like.
- the edit control unit 33 controls post production processing. That is, an operation signal P Se using the display in the GU I environment is supplied from the user interface unit 34 connected to the editing control unit 33, and any material data can be selected by the operation signal P Se. When it is indicated, the edit control unit 33 generates a read control signal RC corresponding to the operation signal P Se and supplies the read control signal RC to the write / read processing circuit 322 of the edit processing unit 32. Further, when the operation signal PSe relates to editing operation such as processing or combination of the material data read out, the editing control unit 33 generates the editing control signal ET according to the operation signal PSe, and the editing processing unit The signal is supplied to 32 signal editing circuits 323.
- the editing control unit 33 outputs the operation signal PSe. And generates a write control signal WC corresponding to the read / write processing circuit 322. Further, when the operation signal PSe indicates the output of content data, the edit control unit 33 generates an output control signal RP corresponding to the operation signal PSe and supplies the output control signal RP to the write / read processing circuit 322.
- the editing control unit 33 When the operation signal PSe defines the reproduction speed range of the content data, the editing control unit 33 generates a speed range setting signal LP corresponding to the operation signal PSe, and supplies it to the signal editing circuit 323.
- the write / read processing circuit 322 reads the requested material data from the data storage device 321 based on the read control signal RC, and supplies the read material data to the signal editing circuit 323.
- the write / read processing circuit 322 stores the completed content data DC in the data storage device 321 based on the write control signal WC.
- the write / read processing circuit 322 also writes the requested content data DC on the basis of the output control signal RP. Read from storage device 2 1 1 and output.
- the signal editing circuit 3 2 3 uses the video data DV and / or the audio data DA contained in the material data read out from the data storage device 3 1 2 to edit and process images and sounds or delete combined images etc. Processing is performed based on the editing control signal ET.
- the signal editing circuit 3 2 3 supplies the video data D Ve before editing, during editing or after editing to the video output signal generation circuit 3 51, and the audio data before editing, during editing or after editing
- the DAe is supplied to the audio output signal generation circuit 3 52.
- the signal editing circuit 3 2 3 changes the attached information DM according to the video data and the audio data after the editing.
- the signal editing circuit 3 2 3 is a frame rate information DM-FR s that indicates a set frame rate FR s corresponding to the video data DV after editing and the audio data DA and the video data DV after editing and the audio data DA.
- Frame identification information DM-BN attached information DMc is concatenated to generate content data DC.
- the signal editing circuit 33 2 also connects speed range information indicating the reproduction speed range of the content data D C as the additional information DMc based on the speed range setting signal L P.
- the signal editing circuit 323 links these pieces of information as additional information DMc.
- this information may be connected as the additional information DMc. Furthermore, when the maximum speed at which the content data can be reproduced is input, this maximum speed is also linked as attached information DMc. Also, when the sub-frame number BN is not added to the material data, the signal editing circuit 323 or the editing control unit 33 performs the processing shown in FIG. 3 described above, sets the sub-frame number BN, and identifies the frame. Information DMc-BN.
- the video output signal generation circuit 351 of the editing output signal generation unit 35 generates the video signal Svm based on the video data D Vg, D Vi supplied from the editing control unit 33 and edits the video signal S vm.
- Image display device 40 is supplied. Therefore, information about material data can be displayed in the GUI environment.
- the video output signal generation circuit 3 51 generates a video signal S vm based on the video data D Ve supplied from the signal editing circuit 3 2 3. This Thus, the user can edit the image before editing, during editing or after editing
- the audio output signal generation circuit 3 52 converts the audio data D Ae supplied from the signal editing circuit 3 2 3 into an analog audio signal S am and uses, for example, a speaker or headphone as a desired signal level. It is supplied to the edited voice output device 41 configured as described above. For this reason, the user can confirm the audio before editing, during editing or after editing by the audio output from the editing audio output device 41.
- FIG. 8 shows the configuration of the content transmission apparatus 50.
- the transmission content data DC supplied from the editing device 30 is supplied to the writing processing unit 51.
- the write processing unit 51 is connected to the content storage device 52 1 of the transmission data generation unit 52, and stores the supplied content data for transmission in the content storage device 5 21.
- the content data DC is not limited to the one supplied from the editing device 30. Material data or the like generated by the imaging device 10 may be used as the content data DC.
- the transmission data generation unit 52 generates the transmission data D Tz based on the content data DC.
- the content storage device 52 1 of the transmission data generation unit 52 is connected to the read processing circuit 52 2. It is done.
- the readout processing circuit 52 2 is supplied with band information WB of the transmission path when transmitting the content data for transmission and a content request signal RQ from the content reproduction apparatus side from the transmission processing unit 53 described later. .
- the readout processing circuit 52 2 controls frame rate adjustment by controlling readout of the requested content data based on the bandwidth information WB and the additional information DMc of the requested content data stored in the content storage device 5 21. Then, the frame rate adjusted content data DC za is supplied to the information correction circuit 5 2 3.
- the amount of data for one frame is B Dbit, and the set frame indicated by the frame rate information DMc-FRs.
- the frame rate FRs is n (n is a positive number) times the reference frame rate FRr
- the amount of data to be transmitted per unit time BT is "BT2 BDXnXFRr + BH".
- the data amount BH collectively indicates header information and the like added when the content data is bucketed and transmitted.
- the transmittable data amount (bandwidth) BA indicated by the band information WB is not smaller than the data amount BT
- the frame rate adjustment of the content data is not performed, and the content data is output from the content storage device 521. It is read out sequentially and supplied to the information correction circuit 523.
- the bandwidth BA is smaller than the data volume BT
- the frame rate adjustment is performed on the video data of the content data, etc., and the video and audio may be interrupted at the time of the streaming operation to play back while receiving the transmission data.
- the adjusted data volume BT is larger than the bandwidth BA
- sample thinning is performed according to the frame rate adjustment for the video data, and audio data after frame rate adjustment is generated. For example, when video data is read every other frame, audio data is read every other sample. When video data is read every 2 frames, audio data is read every 2 samples to generate audio data after frame rate adjustment.
- the information correction circuit 523 corrects the additional information DMza of the content data DCza to correspond to the adjusted frame rate when the frame rate adjustment is performed by the read processing circuit 522, and the additional information DMz correctly indicates the frame rate.
- the frame identification information DMz a-BN is also changed along with the change of the set frame rate F Rs. That is, frame identification information DMz ⁇ BN in which subframe number BN “0 to 9” is replaced with subframe number BN “0 to 4”. Furthermore, using this post-change frame rate information DMz-FRs and frame identification information DMz-BN, the attached information D Mc is changed to attached information D Mz.
- the encoder 524 encodes the supplied video data DVz and audio data DAz of the supplied content data DCz into a signal suitable for transmission to generate encoded data DZ. For example, it is encoded into a signal suitable for streaming transmission using an encoding method standardized as MP EG (Moving Picture Experts Group 4).
- the additional information DMz is connected to the encoded data DZ obtained by this code processing, and is supplied to the transmission processing unit 53 as transmission data DTz.
- the content data can be efficiently transmitted by performing the encoding process.
- the transmission processing unit 53 reads out the content request signal RQ indicating the requested content data when a request for content data is made by the transmission signal T Mrq supplied from the content reproduction device 70. Supply to 2.
- the transmission processing unit 53 generates band information WB related to the band of the transmission line 60 and supplies the band information WB to the read processing circuit 52. Furthermore, based on the request for content data, the transmission processing unit 53 requests the content data via the transmission path 60 by using the transmission data DT z supplied from the encoder 5 24 as a transmission signal of a predetermined protocol. Supply to the content playback device 70 that performed the
- the band information WB supplied to the read processing circuit 52 is, for example, a transmission processing unit 53 using a network device such as a router, and obtained from a management information base (MIB Management Information Base) possessed by the network device. Traffic information that can be used can be used as bandwidth information WB. Also, a bucket for measurement is sent to the content reproduction device 70, a bandwidth is identified by measuring a response time from the content reproduction device 70, etc., and this identification result is used as the bandwidth information WB. You can also.
- MIB Management Information Base Management Information Base
- the data amount BT can be adjusted according to the bandwidth BA by varying the data compression rate with the encoder 5 24 based on the band information WB. It may be variable. In this case, since the control of the amount of data can be more finely controlled, it is possible to reduce the degradation of the quality of the image and sound to be transmitted even if the bandwidth B A becomes narrow. Furthermore, during the frame period in which the setting frame rate F R s remains the same, the adjustment of the data amount B T can be performed by the encoder 5 24 with the adjusted frame rate being constant regardless of the band information WB. In this case, it is possible to prevent the content portion set to the desired frame rate by the imaging device 10 or the editing device 30 from being adjusted to a different frame rate according to the bandwidth B A.
- the encoder 542 may be used to adjust the amount of data BT. In this case, the bandwidth of transmission line 60 The content can be played back at the recommended playback speed even if
- the content transmission process of the above-mentioned content transmission apparatus 50 can be realized by software processing using a computer.
- Fig. 9 shows the configuration when content transmission is performed by this software processing.
- the computer incorporates a CPU (Central Processing Unit) 551 as shown in FIG. 9, and this CPU 551 is a hard disk drive with a large storage capacity, such as ROM 552, RA M553, via a path 560.
- a CPU Central Processing Unit
- the CPU 551 executes a program stored in the ROM 552, the RAM 553 or the data storage unit 554 to perform content transmission processing.
- Signal input is a program stored in the ROM 552, the RAM 553 or the data storage unit 554 to perform content transmission processing.
- the data is stored in the data storage unit 554 via 60.
- the CPU 551 reads the requested content data from the content data stored in the data storage unit 554, and controls this reading. Then, the frame rate adjustment is performed so that the content data of the data amount corresponding to the transmission path 60 is obtained.
- CPU 55 1 is the coding suitable transmission to generate the means pursuant transmission data DT Z.
- the generated transmission data DT z is output through the communication unit 562.
- the program for performing content transfer processing is stored in advance in the ROM 552 or the data storage unit 554, or the program for content transfer processing is recorded on the recording medium by the recording medium drive 563 or recorded on the recording medium.
- the program may be read out and executed.
- the program may be transmitted or received by the communication unit 562 via a wired or wireless transmission path, and the received program may be executed by a computer.
- FIG. 10 is a flowchart showing the content transmission processing operation.
- the CPU 551 fetches the content data DC and inputs a signal.
- the content data DC input to the unit 561 is stored in the data storage unit 554.
- the content data is not limited to the data supplied from the editing device 30. Material data or the like generated by the imaging device 10 may be stored in the data storage unit 554 as content data.
- step ST12 the CPU 551 determines whether a request for content data has been made.
- the process returns to step ST12, and when a request for content data is made via the communication unit 562, for example, the process proceeds to step ST13.
- step ST13 the CPU 551 reads the additional information of the requested content data and proceeds to step ST14.
- the CPU 551 detects the bandwidth of the transmission path, and controls the content data read from the data storage unit 554 according to the detected bandwidth by using frame identification information to adjust the frame rate. I do.
- the CPU 551 corrects the read-out content data DCza attached information DMza so as to correspond to the adjusted frame rate to obtain attached information DMz.
- the CPU 551 performs coded data processing according to the transmission path using the content data DCz in which the attached information has been corrected, and generates coded data DZ. Furthermore, using the generated encoded data DZ and the adjunct information DMz after correction, the transmission data DTz is generated, and the process proceeds to step ST17.
- the CPU 551 outputs the generated transmission data DTz from the communication unit 562 toward the content data request destination.
- FIG. 11 shows the configuration of the content reproduction apparatus 70.
- the transmission signal TM z supplied from the content transmission device 50 is supplied to the communication circuit 71 1 of the input unit 71.
- the input unit 71 takes in content data, and the communication circuit 71 1 of the input unit 71 generates transmission data DT z from the supplied transmission signal T Mz, and generates encoded data D Z from this transmission data DT z.
- additional information Extract DMz Further, the communication circuit 71 1 supplies the extracted additional information DMz to the information storage circuit 712 and supplies the encoded data DZ to the data holding circuit 71 3.
- the communication circuit 71 1 is a content from the reproduction control unit 72 described later.
- the transmission signal TMrq is generated based on the request signal RQ and supplied to the content transmission apparatus 50.
- the information storage circuit 712 stores the supplied additional information DMz.
- the data holding circuit 7 13 stores the supplied encoded data D Z.
- a user interface unit 73 is connected to the reproduction control unit 72.
- the reproduction control unit 72 When the operation signal PSp from the user interface unit 73 requests content data, the reproduction control unit 72 generates a content request signal RQ based on the operation signal PSp, and the communication circuit 7 1 1 Request the content transmission device 50 to transmit content data.
- the reproduction control unit 72 supplies the read control signal CN to the data holding circuit 713 to instruct reproduction.
- the encoded data DZ of the content is read from the data holding circuit 713 and supplied to the reproduction processing unit 74.
- the reproduction control unit 72 reads out the attached information DMz corresponding to the read out encoded data DZ from the information storage circuit 722, and displays the video data D Vs displaying the information contained in the attached information DMz,
- the additional information DMz includes time information such as a time code
- the total time indicated in the time information is video data indicating the reproducible speed range based on the limit information included in the additional information D Mz.
- the reproducible speed range, the total time, the time of the reproduction position, etc. are displayed on the screen of the content presentation apparatus 80 such as a television apparatus or a monitor apparatus.
- the reproducible speed range is set as shown in the above-mentioned editing device 30.
- the set reproducible speed range is displayed on the screen of the content presentation device 80.
- the playback control section 72 sets the maximum speed of the variable range of the playback speed FP to the maximum speed indicated by the additional information DM Z. .
- the additional information DMz indicates the recommended playback speed If the playback speed is not instructed by the operation signal PSp, the playback control unit 72 generates the presentation control signal CP so as to perform the playback operation at this recommended playback speed.
- the reproduction control unit 72 causes the information on the screen of the content presentation device 80 to be displayed.
- the reproduction processing unit 74 for performing variable-speed reproduction of content decodes the encoded data D Z supplied from the data holding circuit 7 13 and generates video data D V z of content and audio data D Az.
- the playback processing unit 74 further performs decimation and repetition processing using frame identification information DMz-BN on the generated video data D Vz and audio data D Az based on the presentation control signal CP, and is set by the user.
- Content presentation is performed by generating a video signal S vz and an audio signal S az according to a playback speed FP equal to the playback speed FP or the recommended playback speed and supplying the video signal S vz and the audio signal S az to the content presentation device 80.
- the playback processing unit 74 displays the video signal S vz that displays the variable range of the playback speed FP on the screen of the content presentation device 80.
- the reproduction processing unit 74 thins out the encoded data DZ in units of frames based on the presentation control signal CP from the data holding circuit 7 13. It may be read out. In this case, there is no need to decode decimated video data, and the decoding process can be easily performed.
- the content reproduction apparatus 70 may use a recording medium in which content data is recorded.
- the additional information DMz and the encoded data DZ are separated from the reproduction signal obtained by reproducing the recording medium, and the additional information DMz is stored in the information storage circuit 722, and the encoded data DZ is stored.
- the same processing can be performed by storing in the holding circuit 7 13.
- the content reproduction processing of the above-described content reproduction apparatus 70 can also be realized by software processing using a computer.
- the configuration for playing back content by this software processing is shown in Figure i2.
- the computer has a built-in CPU 751, as shown in Figure 12; ROM 752, RAM 753, data storage unit 7 via bus 760 to U 751
- I / O interface 755 is connected. Furthermore, in the input / output interface 755, the communication unit 761, the user interface unit 762, the signal output unit 7
- recording medium drive 764 is connected.
- the CPU 751 executes a program stored in the ROM 752, the RAM 753 or the data storage unit 754 to perform a content transfer processing operation based on the operation signal P Sp from the user interface unit 762.
- the communication unit 761 extracts the encoded data DZ and the additional information DMz.
- the encoded data DZ and attached information DMz extracted by the communication unit 761 are stored in the data storage unit 754.
- the CPU 751 reads out and decodes the encoded data DZ stored in the data storage unit 754 based on the operation signal P Sp from the user interface unit 762 and performs the video data D Vz and the sound processing.
- Voice data DAz is generated and supplied to the signal output unit 763.
- the signal output unit 763 generates and outputs a video signal Svz and an audio signal Saz according to the content presentation device 80 based on the video data DVz and the audio data DAz.
- the program for performing content reproduction processing is stored in advance in the ROM 752 or the data storage unit 754, or the recording medium drive 764 records the program for content reproduction processing on a recording medium or records it on a recording medium.
- the program may be read out and executed.
- the program may be transmitted or received by the communication unit 761 via a wired or wireless transmission path, and the received program may be executed by a computer.
- FIG. 13 is a flowchart showing the content reproduction processing operation.
- the CPU 751 displays an image for configuring the GU I environment on the content presentation device 80 and performs an operation corresponding to the displayed image in the user interface 762. Perform operation input with.
- FIG. 14 exemplifies the display image of the content presentation device 80, and the content presentation device 80 displays an image for GU I.
- the view part 801 for displaying the image of the content On the screen of the content presentation device 80, the view part 801 for displaying the image of the content, playback speed FP
- a variable speed console unit 802 which is an interface for changing, a reproduction speed display unit 803 for displaying the reproduction speed FP, an operation control / relay unit 804 for switching the operation mode and the volume etc., a title display showing the content title A section 805, a time display section 806 for displaying the playback time of the content and the current time, and a playback position display section 807 for indicating the current playback position are provided.
- the CPU 751 reads the attached information DMz of the content from the data storage unit 754 in step ST 21 of FIG. 13 and transmits the signal output unit 763 to the content presentation device 80 through the input / output interface 755 based on the attached information DMz. It outputs the generated video signal Svz and audio signal Saz.
- the content presentation device 80 displays the information according to the attached information DMz. For example, the title of the content or the time length of the content is displayed on the title display unit 805 or the time display unit 806. In addition, the minimum speed and the maximum speed are displayed on the speed variable console unit 802 based on the speed range information.
- step ST22 the CPU 751 uses the operation control unit 804 to identify based on the operation signal PSp whether the content reproduction start operation has been performed.
- the CPU 751 returns to step ST22.
- the reproduction start operation is performed, the CPU 751 proceeds to step ST23.
- step ST23 the CPU 751 sets the reproduction processing conditions according to the reproduction speed FP and the set frame rate FR s, that is, the video data DV z and the audio data D Az obtained by decoding the encoded data DZ. It determines the number of repetitions of data thinning interval and data which are performed when generating the signal S vz and the audio signal S az.
- the CPU 751 reads out the encoded data DZ from the data storage section 754 and decodes it to generate video data DVz and audio data DAz, and based on the reproduction processing conditions determined at step ST23.
- the frame identification information DMz-BN is used to thin out the data and repeat the data to generate the video signal Svz for content presentation and the audio signal Saz.
- the CPU 751 supplies the generated video signal S vz and audio signal Saz to the content presentation device 80 so that the reproduced image of the reproduction speed FP indicated by the cursor position (indicated by a thick line) of the variable speed console unit 802 is displayed. It is displayed on the view part 801 of the content presentation device 80.
- the playback speed at this time The degree FP is displayed on the reproduction speed display unit 803, and the reproduction time and the reproduction position are displayed on the time display unit 800 and the reproduction position display unit 807.
- the content presentation device 80 outputs the playback audio at the playback speed FP indicated by the cursor position of the variable-speed console unit 802.
- the CPU 751 determines whether or not the cursor position of the variable-speed console unit 802 has been moved to change the playback speed FP.
- the CPU 751 identifies that the change of the playback speed FP has been performed, the CPU 751 returns to step ST23.
- the CPU 751 does not identify that the change of the playback speed FP has been performed, the CPU 751 proceeds to step ST26.
- step ST26 the CPU 751 determines whether the reproduction operation has ended.
- the CPU 751 determines whether the reproduction operation has ended.
- the CPU 751 returns to step ST 25.
- the stop operation is performed or when the reproduction position reaches the end position, the CPU 751 ends the variable speed reproduction operation.
- FIG. 15 is a flowchart showing setting operation of reproduction processing conditions for an image.
- the CPU 751 identifies the reproduction speed FP based on the cursor position of the variable speed console unit 802, and proceeds to step ST32.
- the reference frame rate FRr is set to 1 ⁇ speed
- the initial position of the cursor on the variable speed console unit 802 is set to 1 ⁇ speed position, for example, to set the playback speed FP at the start of playback operation.
- the CPU 751 sets the position of the recommended playback speed FP as the initial position of the cursor, and the recommended playback speed FP at the start of the playback operation. Set the playback speed as FP.
- the CPU 751 sets the speed corresponding to the cursor position as the reproduction speed F P.
- the CPU 751 identifies the set frame rate FRs based on the frame rate information DMz-FRs contained in the attached information DMz, and proceeds to step ST33.
- the CPU 751 multiplies the reproduction speed FP by the set frame rate FRs to calculate an identification value FD for determining the reproduction processing condition.
- the CPU 751 determines the reproduction processing conditions based on the identification value FD. Set.
- the identification value FD is 1 or more and does not include the value after the decimal point, the CPU 751 determines the reproduction processing condition so as to thin out and output the image at frame intervals according to the identification value FD.
- the CPU 751 thins the image using frame identification information DMz-BN at frame intervals according to the integer value part of the identification value FD, and When an image of the number of frames corresponding to the reproduction speed is obtained, the reproduction processing condition is determined so as to move the position of the image to the initial value next to the subframe number BN.
- the identification value FD is less than 1, the CPU 751 determines the reproduction processing condition so as to repeatedly output the same image until the number of frames corresponds to the desired reproduction speed.
- FIG. 16 to 16M show the reproduction operation in the case where the identification value FD is 1 or more and does not include the value after the decimal point.
- FIG. 16A shows an image based on the video data DVz when the set frame rate FRs is 10 times faster than the reference frame rate FRr.
- Fig. 16B shows frame rate information DMz-FRs showing the set frame rate FRs of the frame image
- Fig. 16C shows frame identification information DMz-BN showing the subframe number BN of the frame image
- Fig. 16D shows the absolute frame number AN. Each is shown.
- the reproduction speed FP is set to (1Z5) double speed
- 16E is the frame identification information DMz-BN of the displayed image
- FIG. 16F is the absolute frame number AN of the displayed image
- FIG. 16F is the frame identification information DMz-BN of the displayed image.
- 16G indicates a frame image displayed by the video signal Svz.
- a double-speed reproduced image can be displayed on the content presentation device 80.
- 16K shows frame identification information DMz-BN of the displayed image
- FIG. 16L shows an absolute frame number of the displayed image AN
- FIG. 16M shows a frame image displayed by the video signal Svz.
- Figure 17G shows the playback operation when the identification value FD is 1 or more and does not contain the value after the decimal point.
- Fig. 17A shows a frame image when the set frame rate FRs is 7 times faster than the reference frame rate FRr.
- Fig. 17 B is frame rate information DMz-FRs showing the set frame rate F Rs of the frame image
- Fig. 17 C is frame identification information showing the subframe number BN of the frame image DMz-BN
- Fig. 17 D is absolute Frame numbers AN are shown respectively.
- the number of frames according to the desired playback speed that is, (1Z3) double speed
- the next to subframe number BN Move the position of the video data DVz to be used to the initial value.
- the video signal Svz is sequentially generated using the video data DVz of the subframe numbers BN “0” “2” “4”, and the (1 ⁇ 3) -speed reproduced image is displayed on the content presentation device 80. It can be displayed.
- 17E shows the frame identification information of the displayed image DM z-BN
- FIG. 17F shows the absolute frame number of the displayed image AN
- FIG. 17G shows the frame image displayed by the video signal Svz.
- 18A to 18M show the reproduction operation in the case where the identification value FD is less than 1, and the level is shown.
- FIG. 18A shows a frame image when the set frame rate FRs is set to (1 ⁇ 4) the speed of the reference frame rate FRr.
- FIG. 18 B is frame rate information DMz-FRs showing the set frame rate FRs of the frame image
- Fig. 18 C is frame identification information DMz-BN showing the subframe number BN of the frame image
- Fig. 18 D absolute frame number AN Each is shown.
- 18E shows frame identification information DMz-BN of the displayed image
- FIG. 18F shows an absolute frame number of the displayed image AN
- FIG. 18G shows a frame image displayed by the video signal Svz.
- FIG. 18H shows the frame identification information DMz-BN of the displayed image
- FIG. 18I shows the absolute frame number AN of the displayed image
- FIG. 18J shows the displayed image by the video signal Svz. The frame image is shown.
- FIG. 18 K shows the frame identification information DMz-BN of the displayed image
- FIG. 18 L shows the absolute frame number AN of the displayed image
- FIG. 18 M is displayed as the video signal Svz.
- the frame image is shown.
- step ST41 the CPU 751 determines the reproduction speed in the same manner as at step ST31, and proceeds to step ST42.
- the CPU 751 reads the set frame rate FRs as at step ST32, and proceeds to step ST43.
- step ST43 the CPU 751 calculates the identification value FD in the same manner as at step ST33, and proceeds to step ST44.
- the CPU 751 determines the reproduction processing conditions based on the identification value FD.
- the identification value FD is 1 or more and does not contain the value after the decimal point
- the reproduction processing condition is determined so as to thin the audio data at the sample interval according to the identification value FD.
- the discriminant value FD is 1 or more and includes decimal values
- decimation of voice data is performed at a sample interval according to the integer value part of the discriminant value FD from frames corresponding to multiples of the set frame rate FRs with respect to the reference frame rate Determine playback processing conditions so as to read out audio data for playback speed.
- the reproduction processing conditions are determined so that the voice data is repeatedly used so that the number of samples corresponds to the number of frames corresponding to the desired reproduction speed.
- FIGS. 20A to 20E show the audio reproduction operation in the case where the identification value FD is 1 or more and does not include the value after the decimal point.
- Fig. 2 OA shows absolute frame number AN
- Fig. 2 OB shows frame rate information DMz_FRs indicating the set frame rate F Rs of the frame image
- Fig. 20 C shows frame identification information DMz-BN showing the subframe number BN of the frame image. ing.
- FIG. 20D shows a frame used to generate the video signal Svz
- FIG. 20E shows audio data used by the audio signal Saz when the audio data DAz is 14 samples / frame. .
- FIGS. 21A to 21E show the audio reproduction operation in the case where the identification value F D is 1 or more and the value after the decimal point is included.
- Fig. 21 A absolute frame number AN
- Fig. 2 IB frame rate information indicating frame image setting frame rate F Rs DMz-FRs
- Fig. 2 1 C frame identification information indicating frame number BN of frame image DMz -Show BN respectively.
- FIG. 21C shows a frame used for generating the video signal Svz
- FIG. 2 ID shows audio data used for the audio signal Saz when the audio data DAz is 14 samples / frame.
- the audio signal Saz is generated so that the intervals of the audio data DAz are not wide and the reproduced sound is not discontinuous. Decimation is performed so that the interval of the audio data to be used becomes substantially constant. You may use it as a bowl.
- the setting frame rate FR s is set to KA times the reference frame rate FR r and the reproduction speed FP is set to (1 / KB) times
- the voice data D Az of consecutive KB samples is approximately equally spaced.
- the speech data of KB samples is taken out, and based on the taken out speech data, a speech signal S az is generated. In this way, compared with the case shown in FIG. 21A to FIG. 21E, the processing becomes complicated, and it is possible to output reproduced voice with better sound quality.
- identification value FD is less than 1, it is possible to generate audio data D Az of a desired reproduction speed by repeating and sequentially using each audio data for the number of frame repetitions of the image, not shown.
- content data DC in which additional information DMz including frame rate information and frame identification information for identifying a frame included in the reference frame period is concatenated with main data indicating image and video or audio. Transmission of z takes place.
- the image speed Z or audio data is played back with variable playback speed using the additional information DMz including frame rate information and frame identification information. Therefore, not only can an image etc. of a predetermined reproduction speed be watched like a broadcast program, but it is possible to view an image etc. at a reproduction speed desired by the user.
- the set frame rate F Rs is made larger than the reference frame rate F Rr to generate contents such as sports relay, it is not necessary to wait for the slow reproduction image to be supplied from the content provider as in a conventional broadcast program.
- the user can usually see only the desired scene in slow while watching at 1x speed.
- frame rate adjustment according to the bandwidth of the transmission path is performed using frame identification information, so frame rate adjustment can be easily performed.
- frame identification information data thinning and the like can be easily performed in frame units, so the content reproduction speed can be easily varied.
- the present invention is useful for transmitting and reproducing image content and the like, and is particularly suitable for changing the frame rate at the time of reproduction.
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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EP03811512A EP1460849A4 (en) | 2002-11-15 | 2003-11-11 | TRANSMISSION DEVICE, TRANSMISSION METHOD, REPRODUCTION DEVICE, PLAY PROCESS, PROGRAM AND RECORDING MEDIUM |
KR1020047010913A KR101055494B1 (ko) | 2002-11-15 | 2003-11-11 | 전송 장치 및 전송 방법, 재생 장치 및 재생 방법, 및 기록 매체 |
US10/501,306 US7471314B2 (en) | 2002-11-15 | 2003-11-11 | Transmission device, transmission method, reproduction device, reproduction method, program, and recording medium |
US11/888,062 US8223210B2 (en) | 2002-11-15 | 2007-07-31 | Apparatus and method for transmission, apparatus and method for production, program, and recording medium |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2002-332652 | 2002-11-15 | ||
JP2002332652 | 2002-11-15 |
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US10501306 A-371-Of-International | 2003-11-11 | ||
US11/888,062 Division US8223210B2 (en) | 2002-11-15 | 2007-07-31 | Apparatus and method for transmission, apparatus and method for production, program, and recording medium |
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WO2004047441A1 true WO2004047441A1 (ja) | 2004-06-03 |
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PCT/JP2003/014320 WO2004047441A1 (ja) | 2002-11-15 | 2003-11-11 | 伝送装置と伝送方法と再生装置と再生方法およびプログラムと記録媒体 |
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US (2) | US7471314B2 (ja) |
EP (1) | EP1460849A4 (ja) |
KR (1) | KR101055494B1 (ja) |
CN (1) | CN100380958C (ja) |
TW (1) | TW200419438A (ja) |
WO (1) | WO2004047441A1 (ja) |
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JP4352260B2 (ja) * | 2005-01-17 | 2009-10-28 | ソニー株式会社 | 撮像装置、撮影画像データの記録方法、撮影画像データ処理装置および撮影画像データ処理方法 |
US8055783B2 (en) * | 2005-08-22 | 2011-11-08 | Utc Fire & Security Americas Corporation, Inc. | Systems and methods for media stream processing |
WO2007029832A1 (ja) * | 2005-09-08 | 2007-03-15 | Sony Corporation | 撮像画像記録装置、撮像画像記録方法、撮像画像再生装置、撮像画像再生方法及び撮像画像記録再生システム |
CN101317450B (zh) * | 2005-11-29 | 2010-09-15 | 日本先锋公司 | 记录装置、再现装置、记录方法 |
KR101100212B1 (ko) * | 2006-04-21 | 2011-12-28 | 엘지전자 주식회사 | 방송 신호 전송 방법, 방송 신호 재생 방법, 방송 신호전송 장치 및 방송 신호 수신 장치 |
US8121534B2 (en) * | 2006-09-27 | 2012-02-21 | Sirius Xm Radio Inc. | System and method for sending and receiving images via wireless audio channels |
TWI394437B (zh) * | 2006-09-28 | 2013-04-21 | Casio Computer Co Ltd | 攝影裝置、記錄電腦程式之記錄媒體及攝影控制方法 |
US9154842B2 (en) * | 2006-11-02 | 2015-10-06 | Verizon Patent And Licensing Inc. | Method and system for customizable video playback controls |
KR101024979B1 (ko) * | 2008-12-30 | 2011-03-29 | (주)하모닉스 | 실시간 멀티미디어 재생 장치 및 이를 이용한 멀티미디어 재생 시스템 |
JP5460180B2 (ja) * | 2009-08-25 | 2014-04-02 | キヤノン株式会社 | 撮像装置及びその制御方法 |
JPWO2012132624A1 (ja) | 2011-03-29 | 2014-07-24 | ルネサスエレクトロニクス株式会社 | 表示装置及び表示装置制御回路 |
JP5759253B2 (ja) * | 2011-05-16 | 2015-08-05 | キヤノン株式会社 | 画像再生装置およびその制御方法およびプログラム |
US9350915B2 (en) * | 2012-02-28 | 2016-05-24 | Semiconductor Components Industries, Llc | Power saving techniques for image sensors |
JP6203515B2 (ja) * | 2013-03-29 | 2017-09-27 | 株式会社メガチップス | 画像処理装置 |
US10547857B2 (en) | 2013-10-11 | 2020-01-28 | Sony Corporation | Transmission device, transmission method and reception device |
JP6860807B2 (ja) * | 2016-05-30 | 2021-04-21 | 株式会社サタケ | 計量包装機 |
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- 2003-11-11 EP EP03811512A patent/EP1460849A4/en not_active Withdrawn
- 2003-11-11 CN CNB2003801001158A patent/CN100380958C/zh not_active Expired - Fee Related
- 2003-11-11 US US10/501,306 patent/US7471314B2/en not_active Expired - Fee Related
- 2003-11-11 WO PCT/JP2003/014320 patent/WO2004047441A1/ja active Application Filing
- 2003-11-14 TW TW092132011A patent/TW200419438A/zh not_active IP Right Cessation
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2007
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Also Published As
Publication number | Publication date |
---|---|
EP1460849A1 (en) | 2004-09-22 |
TWI307857B (ja) | 2009-03-21 |
US20080131071A1 (en) | 2008-06-05 |
CN1685723A (zh) | 2005-10-19 |
US8223210B2 (en) | 2012-07-17 |
US20050243190A1 (en) | 2005-11-03 |
KR20050084757A (ko) | 2005-08-29 |
US7471314B2 (en) | 2008-12-30 |
TW200419438A (en) | 2004-10-01 |
CN100380958C (zh) | 2008-04-09 |
EP1460849A4 (en) | 2007-05-16 |
KR101055494B1 (ko) | 2011-08-08 |
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