RU2016126945A - Способ декодирования видеосигнала - Google Patents

Способ декодирования видеосигнала Download PDF

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RU2016126945A
RU2016126945A RU2016126945A RU2016126945A RU2016126945A RU 2016126945 A RU2016126945 A RU 2016126945A RU 2016126945 A RU2016126945 A RU 2016126945A RU 2016126945 A RU2016126945 A RU 2016126945A RU 2016126945 A RU2016126945 A RU 2016126945A
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current block
mode
conversion
skipping
residual coefficients
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RU2016126945A
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RU2715382C2 (ru
RU2016126945A3 (ru
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Бэ Кын ЛЭЕ
Джэ Чхол КВОН
Джо Ёун КИМ
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Кт Корпорейшен
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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
    • H04N19/60—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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
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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
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    • 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
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    • 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
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    • 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
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    • H04N19/192—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 the adaptation method, adaptation tool or adaptation type being iterative or recursive
    • H04N19/194—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 the adaptation method, adaptation tool or adaptation type being iterative or recursive involving only two passes
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    • H04N19/45—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder performing compensation of the inverse transform mismatch, e.g. Inverse Discrete Cosine Transform [IDCT] mismatch
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    • H04N19/146—Data rate or code amount at the encoder output
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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Claims (7)

1.     Способ декодирования видеосигнала, включающий:
получение остаточных коэффициентов, относящихся к текущему блоку, из видеосигнала;
получение прошедших обратное квантование остаточных коэффициентов путем выполнения обратного квантования остаточных коэффициентов;
определение режима пропуска преобразования, относящегося к текущему блоку, из числа возможных пропусков преобразования на основании индекса режима пропуска преобразования, указывающего режим пропуска преобразования, относящийся к текущему блоку, причем возможные пропуски преобразования включают по меньшей мере один режим из числа режима двумерного преобразования, режима горизонтального преобразования, режима вертикального преобразования и режима без преобразования, а количество или тип возможных пропусков преобразования отличны друг от друга в соответствии с размером текущего блока или формой текущего блока; и
получение остаточных образцов из прошедших обратное квантование остаточных коэффициентов текущего блока на основании определенного таким образом режима пропуска преобразования;
при этом, если определенный таким образом режим пропуска преобразования представляет собой режим двумерного преобразования, остаточные образцы текущего блока получают путем выполнения обратного преобразования прошедших обратное квантование остаточных коэффициентов текущего блока.
2.     Способ по п. 1, отличающийся тем, что обратное преобразование включает преобразование строк текущего блока и преобразование столбцов текущего блока.
RU2016126945A 2011-10-18 2012-10-18 Способ декодирования видеосигнала RU2715382C2 (ru)

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KR10-2011-0106624 2011-10-18

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RU2014117489/07A Division RU2593991C2 (ru) 2011-10-18 2012-10-18 Способ кодирования видеоданных, способ декодирования видеоданных, устройство кодирования видеоданных и устройство декодирования видеоданных

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RU2016126945A3 RU2016126945A3 (ru) 2019-10-09
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RU2016126941A RU2719377C2 (ru) 2011-10-18 2012-10-18 Способ декодирования видеосигнала
RU2016126955A RU2719375C2 (ru) 2011-10-18 2012-10-18 Способ декодирования видеосигнала
RU2016126982A RU2719386C2 (ru) 2011-10-18 2012-10-18 Способ декодирования видеосигнала
RU2016126978A RU2719390C2 (ru) 2011-10-18 2012-10-18 Способ декодирования видеосигнала
RU2016126966A RU2719379C2 (ru) 2011-10-18 2012-10-18 Способ декодирования видеосигнала
RU2016126988A RU2719340C2 (ru) 2011-10-18 2012-10-18 Способ декодирования видеосигнала
RU2016126942A RU2719302C2 (ru) 2011-10-18 2012-10-18 Способ декодирования видеосигнала
RU2016126960A RU2719374C2 (ru) 2011-10-18 2012-10-18 Способ декодирования видеосигнала
RU2016126945A RU2715382C2 (ru) 2011-10-18 2012-10-18 Способ декодирования видеосигнала
RU2014117489/07A RU2593991C2 (ru) 2011-10-18 2012-10-18 Способ кодирования видеоданных, способ декодирования видеоданных, устройство кодирования видеоданных и устройство декодирования видеоданных

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RU2016126982A RU2719386C2 (ru) 2011-10-18 2012-10-18 Способ декодирования видеосигнала
RU2016126978A RU2719390C2 (ru) 2011-10-18 2012-10-18 Способ декодирования видеосигнала
RU2016126966A RU2719379C2 (ru) 2011-10-18 2012-10-18 Способ декодирования видеосигнала
RU2016126988A RU2719340C2 (ru) 2011-10-18 2012-10-18 Способ декодирования видеосигнала
RU2016126942A RU2719302C2 (ru) 2011-10-18 2012-10-18 Способ декодирования видеосигнала
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KR (10) KR102030718B1 (ru)
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AU (5) AU2012326819B2 (ru)
BR (1) BR112014009449B1 (ru)
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