CN1922691A - Method and related apparatus for indexing video data - Google Patents
Method and related apparatus for indexing video data Download PDFInfo
- Publication number
- CN1922691A CN1922691A CNA2005800054782A CN200580005478A CN1922691A CN 1922691 A CN1922691 A CN 1922691A CN A2005800054782 A CNA2005800054782 A CN A2005800054782A CN 200580005478 A CN200580005478 A CN 200580005478A CN 1922691 A CN1922691 A CN 1922691A
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- China
- Prior art keywords
- compressed coding
- reference pictures
- video data
- index file
- reference frame
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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
- G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/70—Information retrieval; Database structures therefor; File system structures therefor of video data
- G06F16/71—Indexing; Data structures therefor; Storage structures
-
- 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
-
- 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
- G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
- G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
-
- 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
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Databases & Information Systems (AREA)
- Physics & Mathematics (AREA)
- Data Mining & Analysis (AREA)
- General Physics & Mathematics (AREA)
- Software Systems (AREA)
- Television Signal Processing For Recording (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
Abstract
The present invention provides for a method of indexing video data (18) by the creation of a plurality of scaled-down reference pictures (24) and including the steps of creating an index file (26) comprising a plurality of compression-encoded reference frames (28), and adding the plurality of reference pictures (24) created during the recording of the video data to a respective plurality of the said compression - encoded reference frames (28), the compression-encoded reference frames (28) being capable containing a plurality of reference pictures (24) each created from a plurality of different video recordings.
Description
The present invention relates to a kind of method and apparatus that is used for video data is carried out index, so that so-called live video sequence thumbnail is provided, thereby the user can watch described thumbnail to help them to select the specific recorded video sequence that will reset.
Currently there is a multiple medium that can write down the video sequence of motion picture thereon, so that the selectivity of this sequence is reset for amusement or other purposes provide.
Increase along with the data volume that can on this medium, write down, might on common media, store a plurality of independent videographs, and need make the user easily to discern these videographs so that suitably carrying out selectivity resets, wherein these independent videographs may be about different themes and be to write down in the different time.
Since recognized adopt trial and error (trial and error) to locate required video sequence will be more consuming time and inaccurate, therefore the someone has proposed various settings and the each several part at least of recorded video sequence has easily been shown allowing, thereby can select complete video sequence based on shown each several part.This so-called on-the-spot thumbnail establishment (livethumbnailing) is for example open in U.S. Patent application US-A-2001/0005400, it provides a kind of method and apparatus that is used to produce so-called on-the-spot thumbnail, wherein said on-the-spot thumbnail is actually short-sighted frequency sequence, and it is used for the content with the specific part of the complete videograph of the ratio explanation of dwindling.
Yet, though this known setting representative that is used to carry out on-the-spot thumbnail establishment is used to create the required thumbnail file relevant with described videograph multiple a kind of in the middle of suitably being provided with, but described known setting only limits to generate the situation of motion thumbnail pictures, and this point is disadvantageous.
Therefore, it is a kind of by creating the method and apparatus that a plurality of reference pictures through dwindling come video data is carried out index that the present invention attempts to provide, and described method and apparatus is compared with method with known equipment has advantage.
According to a first aspect of the invention, provide a kind of by creating the method that a plurality of reference pictures through dwindling come video data is carried out index, this method may further comprise the steps:
Create index file, this index file comprises a plurality of reference frames that are compressed coding; And
Described a plurality of reference pictures of creating in the process that video data is write down are added in the corresponding a plurality of described reference frame that is compressed coding, the wherein said reference frame that is compressed coding can comprise a plurality of reference pictures, and each in the middle of described a plurality of reference pictures is to create according to a plurality of different videographs.
By creating and safeguarding this index file, can advantageously generate and safeguard the content of index screen, this index screen clearly illustrates a plurality of motion thumbnails, the content of the video sequence that each representative in the middle of these motion thumbnails is different.
Therefore, the present invention can provide a kind of method and apparatus that is used to the various video replay device that for example uses DVD, VCD and SVCD technology to generate (comprising relative recording device and set-top box) the live video index in real time.
Because method and apparatus of the present invention allows therefore to have proposed " generating in real time " this saying in the above creating when the corresponding video sequential recording is to selected recording medium and upgrading described video index.
Preferably, described method comprises the step that described index file is associated with database, and this database is used for describing index placement and content.
This Relational database can also advantageously comprise for each and the corresponding reference of the association between the recording video data in the middle of described a plurality of reference pictures through dwindling of being lined up sequence.
This Relational database is advantageously provided at the time location identical with described index file.
By making up described index file and Relational database, can easily realize between each data base entries and the corresponding coded data synchronously.In addition, also help as required described index file to be copied on another medium from a medium.
According to one particular embodiment of the present invention, described index file can comprise the reference frame that is compressed coding of predetermined quantity, and described a plurality of reference picture through dwindling comprises corresponding a plurality of this pictures.
Advantageously, corresponding a plurality of this picture comprises first described a plurality of pictures in the described records series.
Advantageously, described a plurality of reference pictures are added in the corresponding a plurality of described reference frame that is compressed coding, and it is in the compression domain simultaneously.
So in the position of being determined by the layout of described reference frame and/or current content, described a plurality of reference pictures are advantageously added in the described reference frame that is compressed coding.
It will be appreciated, of course, that the compress technique that adopts in the method for the invention comprises the MPEG technology, therefore the described reference frame that is compressed coding comprises the reference frame of mpeg encoded.
Though this method can be used to provide real-time processing as mentioned above, this method can certainly provide processing at the end of video data recording session, thereby generates described on-the-spot thumbnail after video data is write down.
Described method also advantageously provides permission and is compressed the step of the described reference picture through dwindling of reference frame internal shift of coding at each, so that allow the relevant video data of deletion from recording medium.
Certainly, utilize operation of the present invention and method, can easily utilize display device to show a plurality of on-the-spot thumbnails, easily select suitable video sequence by the user so that allow.
According to a further aspect in the invention, provide a kind of by creating the equipment that a plurality of reference pictures through scalable coded come video data is carried out index, this equipment comprises: be used to create the device of index file, this index file comprises a plurality of reference frames that are compressed coding; Be used for the device that adds at described a plurality of reference pictures that the process that video data is write down is created in the corresponding a plurality of described reference frame that is compressed coding, the wherein said reference frame that is compressed coding can comprise a plurality of reference pictures, and each in the middle of described a plurality of reference pictures is to create according to a plurality of different videographs.
Of course it is to be understood that can be by adaptive other favorable characteristics of realizing said method according to equipment of the present invention.
Only by way of example and with reference to the accompanying drawings the present invention is described below, wherein:
Fig. 1 is the schematic block diagram that is used for video data is carried out the equipment of index according to the embodiment of the invention; And
Fig. 2 is the schematically illustrating an of part of equipment shown in Figure 1, and it has illustrated in the configuration of the playback duration of records series.
With reference now to Fig. 1,, wherein with the formal specification of schematic block diagram be used for by creating the equipment 10 that a plurality of reference pictures through dwindling come video data is carried out index.
In this equipment 10, provide the audio coder 12 of the audio-frequency unit 14 that is used to receive the audio/video signal that enters.Provide suitable video encoder 16 concurrently with this audio coder, such as mpeg video encoder.
As shown in the figure, this mpeg video encoder is used to receive full-scale base band video picture 18, and described base band video picture 18 is to provide from the described audio/video signal that enters by video channel.
Make up described Voice ﹠ Video signal of having encoded by multiplexer 20 subsequently, and for example it is provided to disk drive, so that carry out suitable record as required.
Except being provided to mpeg video encoder 16, described complete size base band picture 18 also is provided to convergent-divergent/code device 22, this convergent-divergent/code device 22 at first is used for described complete size base band picture 18 is narrowed down to 1/4th of its normal size for example except using mpeg encoded, as through shown in the picture 24 of convergent-divergent.
Part that indexes setting as illustrated embodiment of the present invention provides index file 26, and a plurality of mpeg frames 28 that provide in compression domain therefrom are provided.
By with reference to one in the middle of 30 mpeg frames 28, it will be appreciated that frame 30 comprises 4 reference pictures through dwindling, wherein two 32 and 34 have been described in this series mpeg frame 28.
This causes having created to for example recording the suitable index of the complete size base band video picture on the dish, and this is to be provided to index file 26 because mpeg frame 28 after the combination and the reference picture through dwindling 24 are located to be shown as from the synthetic piece 36 of compression domain 28 '.
According to this specific embodiment of the present invention, stipulate that described index file is configured to produce the mpeg frame 28 of predetermined quantity, correspondingly, preceding n in the middle of the described base band video picture 18 is provided to convergent-divergent/encoding block 22, so that create n the reference picture through dwindling.
Produce the mpeg frame of right quantity subsequently, it is used to receive the reference picture through dwindling 24 of right quantity.
Though receive 4 reference pictures shown in the figure through dwindling, but in fact each mpeg frame 28 can receive the reference picture through dwindling of greater number, and its sum depends on the degree that described complete size base band video picture can be dwindled under the situation that can too not lose screen resolution.Yet, because described reference picture through dwindling only is used to provide on-the-spot thumbnail sequence, thus its resolution requirement to be compared to the resolution requirement of complete size base band video picture much lower.
With reference now to Fig. 2,, wherein provides a schematic block diagram so that be illustrated as the mode that the user plays described on-the-spot thumbnail pictures, thereby allowed the complete video sequence that is recorded on the dish is carried out required real time indexing.
As shown in the figure, that provide and be provided to mpeg decoder 38 from index file 26 as the mpeg frame 28 that is loaded with at least a portion of the reference picture through dwindling, so that continue to be provided to display unit 40 (such as TV monitor).
Described method is based on and generates and revise the file that comprises with the video data of MPEG2 compatibility, and it represents the content of described index (on-the-spot thumbnail), the Relational database of describing described index placement and the content that comprises the association between each on-the-spot thumbnail and the corresponding film.
At first, described file comprises the reference picture of n mpeg encoded, its representative background fixing or motion, and wherein n is the corresponding configurable parameter of total presentative time with described index screen.
In with the process of given header record on dish/tape, preceding n picture of this record is reduced to specified size and be encoded as reference picture on being recorded in dish.
Then, in the position of layout that depends on the index screen of in Relational database, describing and current content (quantity of the thumbnail that has write down), be added in the respective picture in the described index file with the corresponding data of each described minification picture (in macro block rank) in compression domain.
Method principle (in the above example, upgrading the index file that comprises two motion thumbnails at first, the current motion that just is being recorded on the dish of described the 3rd thumbnail representative) with the 3rd thumbnail.
The described index of resetting.The user can select one of them record by selecting corresponding thumbnail; How to realize that this point is not a part of the present invention, but this corresponding application will assign to be based upon relation between a thumbnail and the corresponding film by the database part of described index file.
Perhaps, above-mentioned processing can be in the end operation (aftertreatment) of each film record, particularly in the performance limited systems.
When from coiling deletion during given record, the video section of the described index file that reads back with pursuing picture, and operate by piece motion shape and to upgrade each picture, so that as required all thumbnails are shifted.
Claims (24)
1, a kind of by creating the method that a plurality of reference pictures through dwindling come video data is carried out index, this method may further comprise the steps:
Create index file, this index file comprises a plurality of reference frames that are compressed coding; And
Described a plurality of reference pictures of creating in the process that video data is write down are added in the corresponding a plurality of described reference frame that is compressed coding, the wherein said reference frame that is compressed coding can comprise a plurality of reference pictures, and each in the middle of described a plurality of reference pictures is to create according to a plurality of different videographs.
2, the method for claim 1, wherein described index file comprises the step that described index file is associated with the database of the layout of describing described index and content.
3, method as claimed in claim 2, wherein, described Relational database is used for being defined in reference picture sequence through dwindling and the association between the described video data.
4,, wherein, provide described Relational database in the position identical with described index file as claim 2 or 3 described methods.
5, as any one or more described method in the middle of the claim 1-4, it is included in a plurality of steps that are compressed the reference frame of coding that predetermined quantity is provided in the described index file.
6, method as claimed in claim 5 wherein, is extracted corresponding a plurality of reference pictures through dwindling, to be used for adding described a plurality of reference frame that is compressed coding to according to the mode of correspondence from described video data.
7, as any one or more described method in the middle of the claim 1-6, wherein, described a plurality of reference pictures are added in compression domain in corresponding a plurality of reference frame that is compressed coding
8, as any one or more described method in the middle of the claim 1-7, wherein, in the position of the layout that depends on the frame that each is compressed coding, each in the middle of described a plurality of reference pictures is added to one of correspondence in the middle of described a plurality of reference frame that is compressed coding.
9, as any one or more described method in the middle of the claim 1-7, wherein, in the position of the current content that depends on the frame that each is compressed coding, each in the middle of described a plurality of reference pictures is added to one of correspondence in the middle of described a plurality of reference frame that is compressed coding.
10, any one or more described method in the middle of the claim as described above, wherein, the described reference frame that is compressed coding comprises the reference frame of mpeg encoded.
11, any one or more described method in the middle of the claim as described above wherein, is implemented the step of the described a plurality of reference pictures through dwindling of establishment video data is write down after.
12, any one or more described method in the middle of the claim as described above, it comprises the step of a plurality of reference picture sequences through dwindling that demonstration is obtained from described a plurality of reference frames that are compressed coding.
13, a kind of by creating the equipment that a plurality of reference pictures through scalable coded come video data is carried out index, this equipment comprises: be used to create the device of index file, this index file comprises a plurality of reference frames that are compressed coding; Be used for the device that adds at described a plurality of reference pictures that the process that video data is write down is created in the corresponding a plurality of described reference frame that is compressed coding, the wherein said reference frame that is compressed coding can comprise a plurality of reference pictures, and each in the middle of described a plurality of reference pictures is to create according to a plurality of different videographs.
14, equipment as claimed in claim 13, wherein, described index file comprises the step that described index file is associated with the database of the layout of describing described index and content.
15, equipment as claimed in claim 14, wherein, described Relational database is used for being defined in reference picture sequence through dwindling and the association between the described video data.
16,, wherein, provide described Relational database in the position identical with described index file as claim 14 or 15 described equipment.
17, as any one or more described equipment in the middle of the claim 13-16, it is included in a plurality of steps that are compressed the reference frame of coding that predetermined quantity is provided in the described index file.
18, equipment as claimed in claim 17 wherein, extracts corresponding a plurality of reference pictures through dwindling, to be used for adding described a plurality of reference frame that is compressed coding to according to the mode of correspondence from described video data.
19, as any one or more described equipment in the middle of the claim 13-17, wherein, described a plurality of reference pictures are added in compression domain in corresponding a plurality of reference frame that is compressed coding.
20, as any one or more described equipment in the middle of the claim 13-19, wherein, in the position of the layout that depends on the frame that each is compressed coding, each in the middle of described a plurality of reference pictures is added to one of correspondence in the middle of described a plurality of reference frame that is compressed coding.
21, as any one or more described equipment in the middle of the claim 13-19, wherein, in the position of the current content that depends on the frame that each is compressed coding, each in the middle of described a plurality of reference pictures is added to one of correspondence in the middle of described a plurality of reference frame that is compressed coding.
22, any one or more described equipment in the middle of the claim as described above, wherein, the described reference frame that is compressed coding comprises the reference frame of mpeg encoded.
23, any one or more described equipment in the middle of the claim as described above wherein, is implemented the step of the described a plurality of reference pictures through dwindling of establishment video data is write down after.
24, any one or more described equipment in the middle of the claim as described above, it comprises the step of a plurality of reference picture sequences through dwindling that demonstration is obtained from described a plurality of reference frames that are compressed coding.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04300092 | 2004-02-20 | ||
| EP04300092.6 | 2004-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1922691A true CN1922691A (en) | 2007-02-28 |
Family
ID=34896164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005800054782A Pending CN1922691A (en) | 2004-02-20 | 2005-02-16 | Method and related apparatus for indexing video data |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2007525131A (en) |
| CN (1) | CN1922691A (en) |
| WO (1) | WO2005083713A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6574416B1 (en) * | 1995-11-02 | 2003-06-03 | Videa, Llc | Picture-based video indexing system |
| JPH11146325A (en) * | 1997-11-10 | 1999-05-28 | Hitachi Ltd | Video retrieval method, device therefor, video information generating method and storage medium storing its processing program |
| JP4629173B2 (en) * | 1999-09-17 | 2011-02-09 | ソニー株式会社 | Recording apparatus, recording method, and recording medium |
| JP4051841B2 (en) * | 1999-12-01 | 2008-02-27 | ソニー株式会社 | Image recording apparatus and method |
| JP4165851B2 (en) * | 2000-06-07 | 2008-10-15 | キヤノン株式会社 | Recording apparatus and recording control method |
-
2005
- 2005-02-16 CN CNA2005800054782A patent/CN1922691A/en active Pending
- 2005-02-16 WO PCT/IB2005/050588 patent/WO2005083713A1/en not_active Application Discontinuation
- 2005-02-16 JP JP2006553748A patent/JP2007525131A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007525131A (en) | 2007-08-30 |
| WO2005083713A1 (en) | 2005-09-09 |
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Owner name: NXP CO., LTD. Free format text: FORMER OWNER: KONINKLIJKE PHILIPS ELECTRONICS N.V. Effective date: 20070817 |
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Effective date of registration: 20070817 Address after: Holland Ian Deho Finn Applicant after: Koninkl Philips Electronics NV Address before: Holland Ian Deho Finn Applicant before: Koninklijke Philips Electronics N.V. |
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Open date: 20070228 |