CN1784902A - Multilayered coding supports migration to new standards - Google Patents
Multilayered coding supports migration to new standards Download PDFInfo
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- CN1784902A CN1784902A CNA2004800118351A CN200480011835A CN1784902A CN 1784902 A CN1784902 A CN 1784902A CN A2004800118351 A CNA2004800118351 A CN A2004800118351A CN 200480011835 A CN200480011835 A CN 200480011835A CN 1784902 A CN1784902 A CN 1784902A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
- H04N19/39—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability involving multiple description coding [MDC], i.e. with separate layers being structured as independently decodable descriptions of input picture data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
Abstract
Initially a service provider makes content information available to the end user in a coding scheme with a base layer and an enhancement layer. The base layer is encoded in a conventional standard, the enhancement layer is encoded in an emerging standard. Later on, the content is made available entirely in the new standard. The end-user has decoder circuitry that selectively operates in one of multiple modes. In a first mode, the circuit operates as two decoders in parallel, one for each layer. In a second mode, the circuit operates as an emerging standard decoder. Therefore, the provider efficiently uses his/her channel capacity during and after the transition to the new standard.
Description
Technical field
A kind of for example method of the encoded content data of audio frequency, video, multimedia or the like that provides is provided.The invention still further relates to and be used to make decoder that the coded data of expression content information is carried out the software of decoding, and the present invention relates to a kind of electronic equipment that comprises decoder, this decoder be used to decode coded data of expression content information.The invention particularly relates to but not exclusively relate to consumer electronics (CE) field.
Background technology
Just using multi-layer coding or compress technique to come the contents processing source data so that sternly give birth to multi-layer data.These layers are superimposed or combined with the renewable source data in addition.These layers for example comprise a basic unit and one or more reinforced layer.Usually, reinforced layer is used for strengthening basic unit and represents reproduction of content as an option.Exist some allow to use the encode technology of reinforced layer of video encoding standards, this video encoding standard is intended to be used for normal vision signal or designs at normal vision signal.Therefore, the multilayer compress technique allows to use compress technique new and more efficient, still has compatible basic unit simultaneously.
Summary of the invention
The inventor recognizes, multi-layer coding or compress technique are proper implements for service provider's (for example video-on-demand service or cable operator), are convenient to become in the outmoded process from first coding or compression standard at first coding standard be converted to second coding or the compression standard.More especially, multi-layer coding makes service can move to certain part of receiver of following generation the past in time gradually from the basic receiver of installing.
Therefore, one embodiment of the present of invention relate to a kind of method that the encoded content data are provided.This method comprises that the start-up control circuit operates in one of specific multiple operating mode.First operator scheme relates to uses first decoding technique to come the basic unit of decode content data, and uses second decoding technique that is different from first decoding technique to come the reinforced layer of decode content data.Usually, reinforced layer is represented the difference between base layer signal and the full content signal.Second operator scheme relates to uses the second technique decodes content-data.Preferably, start-up control comprises provides the control data of specifying certain operational modes.In another embodiment of the present invention, first technology is used conventional decoding scheme, and second technology is used the new or emerging standard that is just beginning to substitute conventional scheme.
An alternative embodiment of the invention relates to a kind of electronic equipment that comprises decoder, this decoder be used to decode coded data of expression content information.This decoder has first operator scheme and second operator scheme.In first pattern, decoder uses the effectively basic unit of decoded data of first decoding technique, and uses the effective reinforced layer of decoded data of second decoding technique be different from first decoding technique.In second pattern, decoder uses effectively decoded data of second technology.The may command decoder is operated in first or second pattern.
Another embodiment relates to a kind of physical record carrier with data of expression content information again.These data comprise uses first coding techniques standard of routine (for example based on) coding and use second coding techniques (for example based on emerging standard) the content encoded information in reinforced layer that is different from first coding techniques in basic unit.These data also comprise with the complete content encoded information of second technology.
Basic principle of the present invention as discussed above is as described below.When market from a standard of having set up when an emerging standard shifts, should the service provider is faced with a kind of difficult choice during this: the service provider provide identical content (promptly being the twice of original content at least) in various criterion? still any content of service provider in should the stop supplies conventional criteria? according to definition, also do not support emerging standard at most of receivers in this field.First option means that provider only provides the partial content of his channel capacity permission.The result of second option is that the conventional receiver in this field all goes out of use when the traditional standard end of transmission.As a result, some subscribers will be not very happy.In addition, second option also causes the problem that when transmission stops in accurately definite conventional criteria.The hierarchical coding scheme that the present invention has a basic unit and one or more reinforced layers by use is simplified to the conversion of new standard.With the conventional criteria basic unit of encoding, use emerging standard code reinforced layer.As a result, make receiver can receive content in the base layer quality with conventional decoder.Have conventional decoder and add that the receiver (being also referred to as mixture) of the decoder of observing new standard can handle full content, promptly basic unit adds reinforced layer.That is to say after the life expectancy that reaches conventional receiver that the service provider is only transmitted the content in the new standard of present foundation, mixture still can switch to the new standard decoder by the decoding with all data and handle full content.For the service provider, can both can between tour, effectively use channel capacity under the constraint of received content at conventional receiver and mixture.In addition, needn't replace mixture before the transmission in stopping conventional criteria, this is again a good thing for the subscriber.
The present invention especially but be not to relate to the emerging video encoding standard of (at present) class that is called as H.26L (be also referred to as the 10th part, AVC of MPEG4 or H.264) specially, H.26L expectation replaces MPEG-2, MPEG-4 SP or MPEG4 ASP.H.26L standard is included as mpeg standard, the common component of standard H.261 and H.263.For background information, for example referring to " the nearest progress of video compression standard " (Recent Advances in VideoCompression Standards), Guy C t é andLowell Winger, IEEE CandianReview-Spring/Printemps 2002, PP.21-24.
For clarity sake, mention H.26L or the 10th part of MPEG4 or H.264 the time, this content means the same item of present emerging video encoding standard when the content of this document.
Description of drawings
By example and further describe the present invention with reference to the accompanying drawings, wherein:
Fig. 1 and Fig. 2 are the calcspars of system among the present invention.
In whole accompanying drawings, the same reference numbers representation class like or corresponding component.
Embodiment
Fig. 1 is the calcspar of system 100 among the present invention.The data of expression content information are provided on input 102.These data must be via low pass and decimation filter 104, and this filter 104 reduces the resolution of received data.An output of low pass filter 104 is connected with an input of basic encoding unit 106.So in the art encoder and filter are well-known, needn't further discuss at this.Encoder 106 provides the basic stream 108 of expression low resolution content information.At this, term " low resolution " means the content that has when reproducing (so that can be perceived) with format acceptable, but has low relatively quality.Basic stream 108 for example can or offer the terminal use via data network 110 storages.About the latter's situation (flow 108 substantially and offer the end user), in decoder 118, accept decode operation, in circuit 119, accept the up-sampling operation by the basic stream 108 that terminal use 116 is received via network 110, be reproduced in then on the television set 114.
Also the data on the input 102 are offered adder 120 via decoder level 122 and circuit 124, circuit 124 makes from the decoded data of level 122 and accepts interpolation and time sampling operation.Circuit 124 outputs are through the data of data processing operation, and these data are compatible mutually with the data of input on input 102.For example, the data that provided by circuit 124 have identical resolution with input data on the input 102.Adder 120 forms one from the data of circuit 124 with from the linear combination of the data of input 102 by deducting from the data of input 102 from the data of circuit 124 then.Then remaining data is offered and strengthen encoder 126 to produce remaining data or to strengthen data flow 128.Add high current 128 and the resolution identical high data resolution of basic stream 108 combination regenerations, and in the back this is discussed with initial reception on the receiving terminal 102.
Terminal use 130 receives basic stream 108 and adds high current 128.Add high current 128 by strengthening decoder 132 decodings, this strengthens the output and adder 134 couplings of decoder 132.Basic stream 108 is decoded in decoder 136 and circuit 138 makes basic stream 108 and the reinforcement data compatibility of decoding, and this circuit 138 is carried out interpolation and up-sampling operation.The output of this circuit 138 also is coupled with adder 134.The basic flow data of adder 134 combination decodings and the reinforcement flow data of decoding are used for reproducing on for example TV 140 that is fit to reproduction high-resolution or reinforcement content.
Strengthen data ordinary representation pixel value and concentrate near zero pixel.Therefore, if strengthen the pixel value of data transform to the compatible mutually pixel value scope of the pixel value scope of master data in, in strengthening encoder 126 and decoder 132, use the electronic code and the decode element of standard.Therefore, use amending unit 142 that the DC skew is added in the pixel value that is provided for encoder 126, and use amending unit 144 from the data that are received from decoder 132, to deduct the DC skew.
In the present invention, encoder 106, decoder 118 and decoder 136 use based on the conventional criteria coding techniques of MPEG-2 for example, yet encoder 126 and decoder 132 use based on emerging standard H.26L coding techniques for example.The content that provides in the conventional criteria can be provided user 116.User 130 can reproduce and use the conventional criteria content encoded, and can reproduce with multilayer scheme content encoded, and this multilayer scheme is used as the above-mentioned conventional criteria and the combination standard of emerging standard.Can determine to use the hybrid coding scheme that is used for flowing substantially and adding high current from conventional criteria to the service provider of emerging standard migration, as discussed above.An advantage of this scheme is, the channel capacity of distributing to this provider obtains content and gives user 116 and 130, and user 116 and 130 can both reproduce the content that is received and full content needn't respectively be transmitted once with conventional criteria and emerging standard in provider.Another advantage is that user 130 can continue to use his/her equipment after provider is converted to new standard fully.In this way, more or less to upgrade the time range of their equipment compatible mutually with client or subscriber for provider's time range of being transformed into new standard.Therefore, user 130 mixing apparatus makes him can continue received content and spends the change-over period simultaneously, and makes him can received content after setting up new standard.After provider stopped to provide content with conventional (being outmoded now) standard and begins to provide content 146 with new standard, transmitted in the path that data then press thick line institute mark among the figure.And then use encoder 126 and decoder 132 difference Code And Decode full contents.Should be pointed out that equally and use switch 148 that the input of transcriber (being television set 140) is switched to suitable path here.The equipment of the control of switch 148 by user 130 receives control data (for example via path 146) or clearly realizes by the in a single day notified switch that just flicks of user he self.Also can impliedly realize the control of switch 148, promptly in a single day user 130 equipment detect and do not exist basic stream 108 with regard to control switch 148.
Fig. 1 has illustrated at transmitting terminal and receiver end as the basic stream of noncontinuous item with add high current.Should be pointed out that with identical transport stream or program stream and can represent such stream physically.Decoder 118,122 and 136 can but need not to be same circuits.Similarly, up-sampling circuit 124 is preferably identical with 138 or preferably have an identical performance.Basic codec 106,118,122 and 136 encoding scheme comprise the MPEG-2, the MPEG-4 that for example support by the basic receiver (being addressable market) of a large amount of installations, H.261, H.263 or other conventional criterias so that commercial relevant with the service provider.On the other hand, codec 126 and 132 use will substitute conventional criteria emerging standard for example H.26L because emerging standard has other advantages for given image quality provides lower bit rate or emerging standard than conventional criteria.
Television set 114 and 140 for example all comprises the digital television based on SDTV (standard definition television) form separately.SDTV is close Digital Television (DTV) form of image quality of guaranteeing image quality and DVD.
Narrating the similar scheme of thinking with top summary is being superior from the SDTV display format to the conversion stage of for example HDTV (high definition TV) display format, and the latter (HDTV) provide higher resolution.The DTV channel at first provides SDTV and provides HDTV with H264 in reinforced layer with MPEG2 in basic unit.As receiving and reproduce broadcasting the user of the SDTV machine as shown in the element 130 and the combination user of HDTV machine and hybrid decoder.Transfer to equipment (television set and STB or other receivers) in accordance with the HDTV form afterwards, H264 broadcasts with individual layer in market.
The content that provides via data network is provided above-mentioned example.Fig. 2 is the calcspar of the system 200 among the present invention, and this figure has illustrated that the content that provides that writes down on physical record carrier (for example solid-state memory, CD, disk or the like) is provided same concept equally.
System 200 comprises the terminal use's 130 who discusses as Fig. 1 element.System 200 also comprises reader and control circuit 202 in this example, and is that the latter can be reproduced in user 130 to provide on the CD 204 and with the hybrid plan content encoded.This content comprises the basic unit 206 that uses first technology for encoding and with the reinforced layer 208 of second technology for encoding that is different from first technology.Equally, first technology relates to conventional criteria and second technology relates to the emerging standard of discussing as Fig. 1.Circuit 202 reads as basic stream 210 and adds the data of high current 212 and these data are offered appropriate decoder in decoder 132 and 136, as discussed above.Circuit 202 can also be provided by the content-data that provides on 214 at dish, with second technology this content-data of encoding fully.Be stored in the dish 214 control data with control switch 148 or produce the announcement information that on television set 140, to reproduce so that notify the user to switch the operator scheme of his equipment.
Should know and see that can using in addition suitably, reproducer replaces television set illustrated among the figure under the prerequisite that does not depart from the scope of the invention.Also should know and see that the field of the invention is not limited to video data, but be applied to comprise the various contents of audio frequency, image, video, multimedia or the like usually.Should know also and see that the above-mentioned illustrated transformation about from conventional criteria to an emerging standard can also be applied to be converted to another standard from any standard.
Patent document below this reference is quoted:
Unpub international application no PCT/IB02/04395 (agent's document code NL021039) the Fons Bruls " spatial scalable compression " (SPATIAL SCALABLE COMPRESSION) that on October 21st, 1 submitted to.This document relates to a kind of apparatus and method that are used for carrying out in the spatial scalable compression of a plurality of frame video information captured.Base layer encoder is used the first coding standard coded bit stream.The reinforced layer encoder uses second coding standard be different from first coding standard residual signal of encoding.Residual signal is a primitive frame and from the difference between high scale (upscaled) frame of basic unit.
Unpub international application no PCT/IB02/04373 (agent's document code NL021040) Fons Bruls that on October 21st, 1 submitted to and ReneKlein Gunnewiek " strengthen the DC skew (DC OFFSET IN FRONT OFENHANCEMENT CODER) of encoder front ".This document relates to the spatial scalable compression of video.Base layer encoder provides the bit stream with relative low resolution.The reinforced layer coding is encoded to residual signal, is used to provide second bit stream.Before the reinforced layer coding, provide a kind of correction, be used for residual signal is transformed into the signal with normal incoming video signal horizontal extent.
Unpub international application no PCT/IB02/04389 (agent's document code NL021041) Rene Klein Gunnewiek that on October 21st, 1 submitted to and Fons Bruls " the cumulative efficient (INCREASING EFFICIENCYOF SPATIAL SCALABLE CODING) of spatial scalable coding ".This document relates to the method and apparatus that a kind of adaptive content filtering of using video flowing provides spatial scalable compression.Downsampled video stream is to reduce the resolution of video flowing.The coding downsampled video stream is to produce basic stream.Decoding is flowed substantially and this basic stream is carried out up conversion to produce the video flowing of reconstruct.From video flowing, deduct this reconstructing video stream to produce residual stream.Resulting residual stream of coding and output add high current in strengthening encoder.In strengthening encoder, weaken residual signal in the selected frame and keep movable information in these frames simultaneously.
Unpub international application no PCT/IB02/04370 (agent's document code NL021042) Fons Bruls that on October 21st, 1 submitted to and ReneKlein Gunnewiek " the cumulative efficient (INCREASINGEFFICIENCY OF SPATIAL SCALABLE CODING) of spatial scalable coding ".This document relates to a kind of device to the effective spatial scalable compression of carrying out of input video stream.Basic encoding unit coding base encoder stream.The content of correcting device correction base encoder stream is to produce a plurality of basic streams.The reinforced layer encoder encodes is strengthened encoder stream.The correcting device correction is strengthened the content of encoder stream to produce a plurality of high currents that add.
US sequence number 09/521051 (agent's document code US000052) the Geert Bruynsteen " the commercial pattern of memory space for rental on digital recorder (BUSINESS MODEL FOR LEASING STORAGE SPACE ON ADIGITAL RECODER) " that on March 8th, 1 submitted to, PCT is published as International Application No. WO 0167743.This patent documentation relates to via data network adjusts on the CE equipment the fixedly available quantity of the memory space of HDD.The consumer can serve updating apparatus via the third party that remote control HDD is provided with.
Similarly, the various compression algorithms that are associated with respective upgrades can be come remote activation by manufacturer, dealer or content supplier.
Claims (23)
1. method that the encoded content data are provided, this method comprise that circuit of start-up control operates in one of specific multiple operating mode:
-the first pattern is used first decoding technique to come the basic unit of decode content data and is used second decoding technique that is different from first decoding technique to come the reinforced layer of decode content data; And
-the second pattern uses second technology to come the decode content data.
2. the process of claim 1 wherein that start-up control comprises provides the control data of specifying certain operational modes.
3. the process of claim 1 wherein that start-up control comprises provides the content-data that uses second technology for encoding.
4. first technology that the process of claim 1 wherein relates to conventional criteria and second technology relates to emerging standard.
5. the method for claim 4, wherein second technology is used H.264 decoding.
6. the process of claim 1 wherein content information is provided as the data that flow on network.
7. the process of claim 1 wherein content information is provided as the data that write down on physical support.
8. first technology that the process of claim 1 wherein can be reproduced the content information with first resolution, and wherein second technology can be reproduced the content information with second resolution higher than first resolution.
9. electronic equipment that comprises decoder, this decoder be used to decode coded data of expression content information, wherein:
-this decoder has first operator scheme and second operator scheme;
-in first pattern, this decoder uses the basic unit of the first decoding technique decoded data, uses the data of second decoding technique decoding reinforced layer that is different from first decoding technique;
-this decoder uses these data of second technique decodes in second pattern;
-may command decoder is operated in first or second pattern.
10. the equipment of claim 9, wherein this decoder has the control input end, is used to receive control data to select first or second operator scheme.
11. the equipment of claim 9, wherein this decoder is operated in second pattern lacking to observe under the data conditions of first technology for encoding.
12. the equipment of claim 9, wherein first technology relates to conventional coding standard and second technology relates to emerging standard.
13. the equipment of claim 9 comprises the receiver that is used for via data network received code data.
14. the equipment of claim 9 comprises the read element that is used for reading from the physical data carrier coded data.
15. the equipment of claim 9 comprises the transcriber that is used to reproduce decoded data.
16. the equipment of claim 9, wherein first technology can be reproduced the content information with first resolution, and wherein second technology can be reproduced the content information with second resolution higher than first resolution.
17. be used to realize the software of a decoder that the coded data of expression content information is decoded, wherein:
-this decoder has first operator scheme and second operator scheme;
-in first pattern, this decoder uses the basic unit of the first decoding technique decoded data, uses the reinforced layer of the second decoding technique decoded data of different first decoding techniques;
-this decoder uses the second technique decodes data in second pattern;
This decoder of-may command is operated in first or second pattern.
18. the software of claim 17, first technology relate to conventional criteria and second technology relates to emerging standard.
19. the software of claim 18, wherein second technology is used H.264 decoding.
20. the physical record carrier with data of expression content information, wherein:
-these data comprise second coding techniques content encoded information in reinforced layer of using first coding techniques content encoded information and use in basic unit to be different from first coding techniques; And
-these data comprise the content information that uses second technology for encoding fully.
21. the carrier of claim 20, wherein first coding techniques based on conventional criteria and second coding techniques based on emerging standard.
22. the carrier of claim 21, wherein conventional criteria is MPEG-2, and H.264 emerging standard is.
23. the carrier of claim 20 comprises CD.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03101215 | 2003-05-02 | ||
| EP03101215.6 | 2003-05-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1784902A true CN1784902A (en) | 2006-06-07 |
Family
ID=33395968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800118351A Pending CN1784902A (en) | 2003-05-02 | 2004-04-29 | Multilayered coding supports migration to new standards |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1627532A1 (en) |
| JP (1) | JP2006525731A (en) |
| KR (1) | KR20060007418A (en) |
| CN (1) | CN1784902A (en) |
| WO (1) | WO2004098198A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101507278B (en) * | 2006-08-16 | 2011-08-03 | 微软公司 | Techniques and method for variable resolution encoding and decoding of digital video |
| CN101516031B (en) * | 2008-02-19 | 2012-06-13 | 索尼株式会社 | Image processing apparatus, image processing method |
| CN104486033A (en) * | 2014-12-03 | 2015-04-01 | 重庆邮电大学 | Downlink multimode channel coding system and method based on C-RAN platform |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100746005B1 (en) * | 2005-10-17 | 2007-08-06 | 삼성전자주식회사 | Apparatus and method for managing multipurpose video streaming |
| WO2016076677A1 (en) * | 2014-11-14 | 2016-05-19 | 엘지전자(주) | Method and device for entropy encoding or entropy decoding video signal for high-capacity parallel processing |
| GB2623226A (en) * | 2019-07-05 | 2024-04-10 | V Nova Int Ltd | Quantization of residuals in video coding |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5432870A (en) * | 1993-06-30 | 1995-07-11 | Ricoh Corporation | Method and apparatus for compressing and decompressing images of documents |
| KR20040054743A (en) * | 2001-10-26 | 2004-06-25 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Spatial scalable compression |
-
2004
- 2004-04-29 CN CNA2004800118351A patent/CN1784902A/en active Pending
- 2004-04-29 WO PCT/IB2004/050546 patent/WO2004098198A1/en not_active Application Discontinuation
- 2004-04-29 EP EP04730343A patent/EP1627532A1/en not_active Withdrawn
- 2004-04-29 JP JP2006506923A patent/JP2006525731A/en not_active Withdrawn
- 2004-04-29 KR KR1020057020746A patent/KR20060007418A/en not_active Application Discontinuation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101507278B (en) * | 2006-08-16 | 2011-08-03 | 微软公司 | Techniques and method for variable resolution encoding and decoding of digital video |
| CN101516031B (en) * | 2008-02-19 | 2012-06-13 | 索尼株式会社 | Image processing apparatus, image processing method |
| CN104486033A (en) * | 2014-12-03 | 2015-04-01 | 重庆邮电大学 | Downlink multimode channel coding system and method based on C-RAN platform |
| CN104486033B (en) * | 2014-12-03 | 2017-09-29 | 重庆邮电大学 | A kind of descending multimode channel coded system and method based on C RAN platforms |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060007418A (en) | 2006-01-24 |
| JP2006525731A (en) | 2006-11-09 |
| EP1627532A1 (en) | 2006-02-22 |
| WO2004098198A1 (en) | 2004-11-11 |
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