DK2465265T3 - Fremgangsmåder og apparat til forbedret intra-chromaindkodning og -afkodning - Google Patents
Fremgangsmåder og apparat til forbedret intra-chromaindkodning og -afkodning Download PDFInfo
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- DK2465265T3 DK2465265T3 DK10760462.1T DK10760462T DK2465265T3 DK 2465265 T3 DK2465265 T3 DK 2465265T3 DK 10760462 T DK10760462 T DK 10760462T DK 2465265 T3 DK2465265 T3 DK 2465265T3
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- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
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- 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
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
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- H—ELECTRICITY
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- 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
- H04N19/103—Selection of coding mode or of prediction mode
- H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
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- 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
- H04N19/103—Selection of coding mode or of prediction mode
- H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
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- H—ELECTRICITY
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- 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
- H04N19/146—Data rate or code amount at the encoder output
- H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
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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
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
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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
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
- H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
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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
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
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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
- H04N19/46—Embedding additional information in the video signal during the compression process
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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
- H04N19/46—Embedding additional information in the video signal during the compression process
- H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
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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
- H04N19/70—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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
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Claims (15)
1. Fremgangsmåde i en videoindkoder omfattende: indkodning (690) af billeddata for mindst en blok i et billede, hvor multiple delingstyper er understøttet til intra-forudsigelses-chromakoding af blokken (630, 830, 870), idet de multiple delingstyper omfatter et sæt af multiple chroma-delingstyper med størrelserne 16x16, 8x8, 4x4 og et sæt af multiple luma-delingstyper (830, 870), hvor en bestemt chroma-delingstype, der anvender en enkelt chroma-intra-forudsigelsesfunktion til at kode blokken, er bestemt ud fra sættet af multiple chroma-delingstyper uafhængigt fra en bestemt luma-delingstype, der anvendes til at kode blokken (860,885), og idet den bestemte luma-delingstype er bestemt ud fra sættet af multiple luma-delingstyper, eller en bestemt chroma-delingstype, der anvender en enkelt chroma-intra-forudsigelsesfunktion til at kode blokken, er bestemt ud fra sættet af multiple chroma-delingstyper som reaktion på en luma-delingstype anvendt til at kode blokken eller en eller flere naboblokke (670), idet luma-delingstypen er omfattet af sættet af multiple luma-delingstyper.
2. Fremgangsmåde ifølge krav 1, hvor der for den bestemte chroma-delingstype vælges en tilgængelig transformation med den største størrelse, der matcher den bestemte chroma-delingstype fra et sæt af transformationer.
3. Fremgangsmåde ifølge krav 1, hvor der fra blandt en bestemt luma-delingstype og en bestemt chroma-delingstype, valgt til at kode blokken, er det kun den bestemte luma-delingstype der bliver signaleret (690), idet den bestemte luma-delingstype vælges fra sættet af multiple luma-delingstyper, og den bestemte chroma-delingstype vælges fra sættet af multiple chroma-delingstyper.
4. Fremgangsmåde ifølge krav 3, hvor den bestemte luma-delingstype er absolut kodet eller differentielt kodet fra en eller flere naboblokke (690).
5. Fremgangsmåde ifølge krav 1, hvor den bestemte chroma-delingstype og den bestemte luma-delingstype begge bliver signaleret (890).
6. Fremgangsmåde ifølge krav 5, hvor den bestemte luma-delingstype og den bestemte chroma-delingstype er absolut kodede eller differentielt kodede fra en eller flere naboblokke (890).
7. Fremgangsmåde i en videoafkoder omfattende: afkodning (720, 740, 750, 920, 930, 940, 950) af billeddata for mindst en blok i et billede, hvor multiple delingstyper er understøttet til intra-forudsigelses-chroma-afkodning af blokken (730, 940), idet de multiple delingstyper omfatter et sæt multiple chroma-delingstyper med størreser på 16x16, 8x8, 4x4 og et sæt multiple luma-delingstyper (720, 920, 940), hvor en bestemt chroma-delingstype, der anvender en enkelt chroma-intra-forudsigelsesfunktion til at afkode blokken, er bestemt ud fra sættet af multiple chroma-delingstyper uafhængigt fra en bestemt luma-delingstype, der anvendes til at afkode blokken (920, 940), og den bestemte luma-type er bestemt ud fra sættet af multiple luma-delingstyper, eller en bestemt chroma-delingstype, der anvender en enkelt chroma-intra-forudsigelsesfunktion til at afkode blokken, er bestemt ud fra sættet af multiple chroma-delingstyper som reaktion på en luma-delingstype, der anvendes til at afkode blokken eller blokkens ene eller flere naboblokke (730), idet luma-delingstypen er omfattet af sættet af luma-delingstyper.
8. Fremgangsmåde ifølge krav 7, hvor der for den bestemte chroma-delingstype vælges en tilgængelig transformation med den største størrelse, der matcher den bestemte chroma-delingstype fra et sæt af transformationer.
9. Fremgangsmåde ifølge krav 7, hvor der fra blandt en bestemt luma-delingstype og en bestemt chroma-delingstype, der er valgt til at afkode blokken, kun modtages information, der indikerer den bestemte luma-delingstype fra en tilsvarende indkoder, der anvendes til at afkode blokken (720), idet den bestemte luma-delingstype er valgt fra sættet af multiple luma-delingstyper og den bestemte chroma-delingstype er valgt fra sættet af multiple chroma-delingstyper.
10. Fremgangsmåde ifølge krav 9, hvor den bestemte luma-delingstype er absolut afkodet eller differentielt afkodet fra en eller flere naboblokke (720).
11. Fremgangsmåde ifølge krav 7, hvor information der indikerer bade den bestemte chroma-delingstype og den bestemte luma-delingstype modtages fra en tilsvarende indkoder, der anvendes til at afkode blokken (920, 940).
12. Fremgangsmåde ifølge krav 11, hvor den bestemte luma-delingstype og den bestemte chroma-delingstype er absolut afkodede eller differentielt afkodede fra en eller flere naboblokke (920, 940).
13. Apparat, omfattende: en indkoder (400) til at indkode billeddata for mindst en blok i et billede, hvor multiple delingstyper er understøttet til intra-forudsigelses-chroma-kodning af blokken, idet de multiple delingstyper omfatter et sæt af multiple chroma-delingstyper med størrelser på 16x16, 8x8, 4x4 og et sæt af multiple luma-delingstyper, hvor en bestemt chroma-delingstype, der anvender en enkelt chroma-intraforudsigelsesfunktion til at kode blokken, er bestemt ud fra sættet af multiple chroma-delingstyper uafhængigt fra en bestemt luma-delingstype, der anvendes til at kode blokken (860,885), og idet den bestemte luma-delingstype er bestemt ud fra sættet af multiple luma-delingstyper, eller en bestemt chroma-delingstype, der anvender en enkelt chroma-intra-forudsigelsesfunktion til at kode blokken, bestemmes ud fra sættet af multiple chroma-delingstyper som reaktion på en luma-delingstype, der anvendes til at kode blokken eller en eller flere naboblokke (670), idet luma-delingstypen er omfattet af sættet af multiple luma-delingstyper.
14. Apparat, omfattende: en afkoder (500) til at afkode billeddata for mindst en blok i et billede, hvor multiple delingstyper er understøttet til intra-forudsigelses-chroma-afkodning af blokken, idet de multiple delingstyper omfatter et sæt af multiple chroma-delingstyper med størrelser på 16x16, 8x8, 4x4 og et sæt af multiple luma-delingstyper, hvor en bestemt chroma-delingstype, der anvender en enkelt chroma-intra-forudsigelsesfunktion til at afkode blokken, er bestemt ud fra sættet af multiple chroma-delingstyper uafhængigt fra en bestemt luma-delingstype, der anvendes til at afkode blokken, og den bestemte luma-type er bestemt ud fra sættet af multiple luma-delingstyper, eller en bestemt chroma-delingstype, der anvender en enkelt chroma-intra-forudsigelsesfunktion til at afkode blokken, er bestemt ud fra sættet af multiple chroma-delingstyper som reaktion på en luma-delingstype, der anvendes til at afkode blokken eller blokkens ene eller flere naboblokke, idet luma-delingstypen er omfattet af sættet af luma-delingstyper.
15. Signal omfattende videodata genereret ved: at indkode billeddata for mindst en blok i et billede, hvor multiple delingstyper er understøttet til intra-forudsigelses-chroma-kodning af blokken, idet de multiple delingstyper omfatter et sæt af multiple chroma-delingstyper med størrelser på 16x16, 8x8, 4x4 og et sæt af multiple luma-delingstyper, hvor en bestemt chroma-delingstype, der anvender en enkelt chroma-intra-forudsigelsesfunktion til at kode blokken, er bestemt ud fra sættet af multiple chroma-delingstyper uafhængigt fra en bestemt luma-delingstype, der anvendes til at kode blokken (860,885), og den bestemte luma-delingstype er bestemt ud fra sættet af multiple luma-delingstyper, eller en bestemt chroma-delingstype, der anvender en enkelt chroma-intra-forudsigelsesfunktion til at kode blokken, er bestemt ud fra sættet af multiple chroma-delingstyper som reaktion på en luma-delingstype, der anvendes til at kode blokken eller en eller flere naboblokke (670), idet luma-delingstypen er omfattet af sættet af multiple luma-delingstyper.
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US23331009P | 2009-08-12 | 2009-08-12 | |
PCT/US2010/002203 WO2011019383A2 (en) | 2009-08-12 | 2010-08-11 | Methods and apparatus for improved intra chroma encoding and decoding |
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DK2465265T3 true DK2465265T3 (da) | 2019-02-18 |
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DK10760462.1T DK2465265T3 (da) | 2009-08-12 | 2010-08-11 | Fremgangsmåder og apparat til forbedret intra-chromaindkodning og -afkodning |
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US (2) | US11044483B2 (da) |
EP (2) | EP2465265B8 (da) |
JP (6) | JP2013502150A (da) |
KR (5) | KR102333204B1 (da) |
CN (11) | CN102577380B (da) |
DK (1) | DK2465265T3 (da) |
ES (1) | ES2706905T3 (da) |
HK (10) | HK1218206A1 (da) |
HU (1) | HUE042129T2 (da) |
PL (1) | PL2465265T3 (da) |
PT (1) | PT2465265T (da) |
TR (1) | TR201900485T4 (da) |
WO (1) | WO2011019383A2 (da) |
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