HRP20230640T1 - Dekodiranje mape značaja za rezidualne koeficijente jedinice za transformaciju - Google Patents

Dekodiranje mape značaja za rezidualne koeficijente jedinice za transformaciju Download PDF

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HRP20230640T1
HRP20230640T1 HRP20230640TT HRP20230640T HRP20230640T1 HR P20230640 T1 HRP20230640 T1 HR P20230640T1 HR P20230640T T HRP20230640T T HR P20230640TT HR P20230640 T HRP20230640 T HR P20230640T HR P20230640 T1 HRP20230640 T1 HR P20230640T1
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Christopher James ROSEWARNE
Alvin Edrea LABIOS
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Canon Kabushiki Kaisha
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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
    • H04N19/102—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
    • H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
    • 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
    • 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
    • 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
    • H04N19/103—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
    • 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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/18—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 set of transform coefficients
    • 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
    • H04N19/50—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
    • 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
    • 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

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  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Claims (4)

1. Postupak za dekodiranje rezidualnih koeficijenata jedinice za transformaciju iz toka bitova video podataka, gdje postupak sadrži: primanje jedinice za transformaciju (1400) iz toka bitova video podataka, gdje jedinica za transformaciju (1400) ima kvadratne slojeve gornjeg nivoa (1402) i donjeg nivoa (1401), pri čemu kvadratni sloj gornjeg nivoa (1402) predstavlja kvadratnu regiju za raspoređivanje indikatora grupe značajnih koeficijenata, od kojih svaki pokazuje da li je bar jedan od rezidualnih koeficijenata u okviru odgovarajuće nepreklapajuće kvadratne regije 4x4 u kvadratnom sloju donjeg nivoa (1401) značajan, i kvadratni sloj donjeg nivoa (1401) predstavlja kvadratnu regiju 8x8 koja uključuje mnoštvo nepreklapajućih kvadratnih regija 4x4 za raspoređivanje rezidualnih koeficijenata, i gdje indikatori značajnih koeficijenata koji ukazuju da li je odgovarajući rezidualni koeficijent značajan su enkodirani u toku bitova; određivanje obrasca skeniranja (1501, 1601, 1701) za kvadratni sloj gornjeg nivoa (1402) i kvadratni sloj donjeg nivoa (1401) u skladu sa režimom intra-predikcije; određivanje indikatora grupe značajnih koeficijenata koji odgovaraju odgovarajućim nepreklapajućim kvadratnim regijama 4x4 kvadratnog sloja donjeg nivoa (1401) za primljenu jedinicu za transformaciju (1400) u redoslijedu skeniranja koji odgovara utvrđenom obrascu skeniranja (1501, 1601, 1701); i određivanje vrijednosti rezidualnih koeficijenata kvadratnog sloja donjeg nivoa (1401) prema utvrđenim indikatorima grupe značajnih koeficijenata i redoslijedu skeniranja koji odgovara utvrđenom obrascu skeniranja (1501, 1601, 1701) rezidualnih koeficijenata za dekodiranje jedinice za transformaciju (1400) toka bitova video podataka, pri čemu obrazac skeniranja (1501, 1601, 1701) za indikatore grupe značajnih koeficijenata i rezidualne koeficijente određuje se iz prvog obrasca skeniranja (1501), drugog obrasca skeniranja (1601) i trećeg obrasca skeniranja (1701), prema režimu intra-predikcije, i prvi obrazac skeniranja (1501), drugi obrazac skeniranja (1601) i treći obrazac skeniranja (1701) se međusobno razlikuju.
2. Postupak prema zahtjevu 1, gdje je utvrđeni obrazac skeniranja jedan od obrazaca skeniranja vodoravno unazad, okomito unazad i dijagonalno unazad.
3. Računalno čitljiv medij za pohranu koji ima na sebi snimljen program, gdje se program može izvršiti pomoću kompjuteriziranog aparata za implementaciju postupka za dekodiranje rezidualnih koeficijenata jedinice za transformaciju (1400) iz toka bitova video podataka, gdje postupak sadrži: primanje jedinice za transformaciju (1400) iz toka bitova video podataka, gdje jedinica za transformaciju (1400) ima kvadratne slojeve gornjeg nivoa (1402) i donjeg nivoa (1401), pri čemu kvadratni sloj gornjeg nivoa (1402) predstavlja kvadratni raspored indikatora grupe značajnih koeficijenata, od kojih svaki pokazuje da li je bar jedan od rezidualnih koeficijenta unutar odgovarajuće nepreklapajuće regije kvadratnog sloja donjeg nivoa (1401) značajan, a kvadratni sloj donjeg nivoa (1401) predstavlja mnoštvo kvadratnih rasporeda rezidualnih koeficijenata, i gdje indikatori značajnih koeficijenata koji ukazuju da li je odgovarajući rezidualni koeficijent značajan su enkodirani u toku bitova; određivanje obrasca skeniranja (1501, 1601, 1701) kvadratnog sloja gornjeg nivoa (1402) i kvadratnog sloja donjeg nivoa (1401) u skladu sa režimom intra-predikcije; određivanje indikatora grupe značajnih koeficijenata koji odgovaraju odgovarajućim nepreklapajućim regijama kvadratnog sloja donjeg nivoa (1401) za primljenu jedinicu za transformaciju (1400) u redoslijedu skeniranja koji odgovara utvrđenom obrascu skeniranja (1501, 1601, 1701); i određivanje vrijednosti rezidualnih koeficijenata kvadratnog sloja donjeg nivoa (1401) prema utvrđenim indikatorima grupe značajnih koeficijenata i redoslijedu skeniranja koji odgovara utvrđenom obrascu skeniranja (1501, 1601, 1701) rezidualnih koeficijenata za dekodiranje jedinice za transformaciju (1400) toka bitova video podataka, pri čemu: obrazac skeniranja (1501, 1601, 1701) za indikatore grupe značajnih koeficijenata i rezidualne koeficijente se određuje iz prvog obrasca skeniranja (1501), drugog obrasca skeniranja (1601) i trećeg obrasca skeniranja (1701), prema režimu intra-predikcije, i prvi obrazac skeniranja (1501), drugi obrazac skeniranja (1601) i treći obrazac skeniranja (1701) se međusobno razlikuju.
4. Video dekoder koji sadrži: sredstvo za primanje toka bitova video podataka; sredstvo za primanje jedinice za transformaciju (1400) iz toka bitova video podataka, gdje jedinica za transformaciju (1400) ima kvadratne slojeve gornjeg nivoa (1402) i donjeg nivoa (1401), pri čemu kvadratni sloj gornjeg nivoa (1402) predstavlja kvadratni raspored indikatora grupe značajnih koeficijenata, od kojih svaki pokazuje da li je bar jedan od rezidualnih koeficijenata unutar odgovarajuće nepreklapajuće regije kvadratnog sloja donjeg nivoa (1401) značajan, a kvadratni sloj donjeg nivoa (1401) predstavlja mnoštvo kvadratnih rasporeda rezidualnih koeficijenata, i gdje indikatori značajnih koeficijenata koji ukazuju da li je odgovarajući rezidualni koeficijent značajan su enkodirani u toku bitova; sredstvo za određivanje obrasca skeniranja (1501, 1601, 1701) kvadratnog sloja gornjeg nivoa (1402) i kvadratnog sloja donjeg nivoa (1401) u skladu sa režimom intra-predikcije; sredstvo za određivanje indikatora grupe značajnih koeficijenata koji odgovaraju odgovarajućim nepreklapajućim regijama kvadratnog sloja donjeg nivoa (1401) za primljenu jedinicu za transformaciju (1400) u redoslijedu skeniranja koji odgovara utvrđenom obrascu skeniranja (1501, 1601, 1701); i sredstvo za određivanje vrijednosti rezidualnih koeficijenata kvadratnog sloja donjeg nivoa (1401) prema utvrđenim indikatorima grupe značajnih koeficijenata i redoslijedu skeniranja koji odgovara utvrđenom obrascu skeniranja (1501, 1601, 1701) rezidualnih koeficijenata za dekodiranje jedinice za transformaciju (1400) toka bitova video podataka, pri čemu: obrazac skeniranja (1501, 1601, 1701) za indikatore grupe značajnih koeficijenata i rezidualne koeficijente određuje se iz prvog obrasca skeniranja (1501), drugog obrasca skeniranja (1601) i trećeg obrasca skeniranja (1701), prema režimu intra-predikcije, i prvi obrazac skeniranja (1501), drugi obrazac skeniranja (1601) i treći obrazac skeniranja (1701) se međusobno razlikuju.
HRP20230640TT 2012-01-19 2013-01-18 Dekodiranje mape značaja za rezidualne koeficijente jedinice za transformaciju HRP20230640T1 (hr)

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AU2012200319A AU2012200319B2 (en) 2012-01-19 2012-01-19 Method, apparatus and system for encoding and decoding the significance map for residual coefficients of a transform unit
EP21198519.7A EP3972249B1 (en) 2012-01-19 2013-01-18 Decoding of the significance map for residual coefficients of a transform unit

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HRP20230513TT HRP20230513T1 (hr) 2012-01-19 2013-01-18 Postupak, aparat i sustav za enkodiranje i dekodiranje mape značajnosti za rezidualne koeficijente jedinice za transformaciju
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HRP20230513TT HRP20230513T1 (hr) 2012-01-19 2013-01-18 Postupak, aparat i sustav za enkodiranje i dekodiranje mape značajnosti za rezidualne koeficijente jedinice za transformaciju

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CN (6) CN107770549B (hr)
AU (7) AU2012200319B2 (hr)
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