RU2016140177A - Способ декодирования видеосигнала - Google Patents

Способ декодирования видеосигнала Download PDF

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RU2016140177A
RU2016140177A RU2016140177A RU2016140177A RU2016140177A RU 2016140177 A RU2016140177 A RU 2016140177A RU 2016140177 A RU2016140177 A RU 2016140177A RU 2016140177 A RU2016140177 A RU 2016140177A RU 2016140177 A RU2016140177 A RU 2016140177A
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RU2721933C2 (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
    • H04N19/10—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
    • H04N19/12—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
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • H—ELECTRICITY
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    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/107—Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
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    • H04N19/439—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using cascaded computational arrangements for performing a single operation, e.g. filtering
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  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)

Claims (8)

1. Способ декодирования видеосигнала в устройстве для декодирования, включающий:
получение разностных коэффициентов, относящихся к текущему блоку;
получение прошедших обратное квантование разностных коэффициентов посредством выполнения обратного квантования разностных коэффициентов;
определение набора кандидатов преобразования, относящегося к текущему блоку, среди множества наборов кандидатов преобразования, причем по меньшей мере количество или тип режимов-кандидатов на режим пропуска преобразования, содержащихся в каждом наборе кандидатов преобразования, отличны друг от друга, а режимы-кандидаты на режим пропуска преобразования включают двумерный режим преобразования, режим горизонтального преобразования, режим вертикального преобразования или режим отсутствия преобразования;
определение режима пропуска преобразования для текущего блока по определенному таким образом набору кандидатов преобразования на основании индекса режима пропуска преобразования, указывающего режим пропуска преобразования для текущего блока; и
получение разностного блока, относящегося к текущему блоку, из прошедших обратное квантование разностных коэффициентов на основании определенного таким образом режима пропуска преобразования для текущего блока.
2. Способ по п. 1, отличающийся тем, что если определенный таким образом режим пропуска преобразования представляет собой режим отсутствия преобразования, то разностный блок получают посредством масштабирования прошедших обратное квантование разностных коэффициентов с использованием заранее определенного значения.
3. Способ по п. 2, отличающийся тем, что масштабирование выполняют посредством использования операции битового сдвига.
RU2016140177A 2011-10-19 2012-10-17 Способ декодирования видеосигнала RU2721933C2 (ru)

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KR10-2011-0107098 2011-10-19

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RU2014117484/07A RU2602834C2 (ru) 2011-10-19 2012-10-17 Способ и устройство для кодирования/декодирования видеоданных
RU2016140175A RU2626013C1 (ru) 2011-10-19 2012-10-17 Способ декодирования видеосигнала
RU2016140163A RU2625912C1 (ru) 2011-10-19 2012-10-17 Способ декодирования видеосигнала
RU2016140177A RU2721933C2 (ru) 2011-10-19 2012-10-17 Способ декодирования видеосигнала
RU2016140155A RU2626014C1 (ru) 2011-10-19 2012-10-17 Способ декодирования видеосигнала
RU2016140171A RU2625911C1 (ru) 2011-10-19 2012-10-17 Способ декодирования видеосигнала

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RU2016140175A RU2626013C1 (ru) 2011-10-19 2012-10-17 Способ декодирования видеосигнала
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US (6) US9300973B2 (ru)
KR (10) KR101542588B1 (ru)
CN (9) CN104067617B (ru)
AU (6) AU2012326872B2 (ru)
BR (1) BR112014009435B1 (ru)
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GB (3) GB2554311B (ru)
MX (6) MX356132B (ru)
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