WO2010143853A2 - 비디오 신호의 디코딩 방법 및 장치 - Google Patents

비디오 신호의 디코딩 방법 및 장치 Download PDF

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Publication number
WO2010143853A2
WO2010143853A2 PCT/KR2010/003639 KR2010003639W WO2010143853A2 WO 2010143853 A2 WO2010143853 A2 WO 2010143853A2 KR 2010003639 W KR2010003639 W KR 2010003639W WO 2010143853 A2 WO2010143853 A2 WO 2010143853A2
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Prior art keywords
transform
transform block
scan order
zero
block
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PCT/KR2010/003639
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English (en)
French (fr)
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WO2010143853A3 (ko
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김정선
박승욱
최영희
성재원
전병문
박준영
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엘지전자 주식회사
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Priority to US13/376,503 priority Critical patent/US9100648B2/en
Publication of WO2010143853A2 publication Critical patent/WO2010143853A2/ko
Publication of WO2010143853A3 publication Critical patent/WO2010143853A3/ko
Priority to US14/711,129 priority patent/US9635368B2/en
Priority to US15/460,013 priority patent/US10015519B2/en
Priority to US15/993,229 priority patent/US10405001B2/en
Priority to US16/519,897 priority patent/US10986372B2/en
Priority to US17/208,100 priority patent/US12120352B2/en

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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
    • H04N19/12—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
    • 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
    • H04N19/10—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
    • H04N19/46—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
    • H04N19/60—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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  • 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)

Abstract

본 발명은, 비디오 신호로부터 현재 매크로블록의 변환 크기 플래그 획득하는 단계; 상기 변환 크기 플래그에 대응되는 제 1 변환 블록에 대해, 상기 제 1 변환 블록 내 각 픽셀 위치에서 0이 아닌 변환 계수(non-zero transform coefficient)의 개수를 확인하는 단계; 상기 제 1 변환 블록 내에서 0이 아닌 변환계수의 개수가 가장 많은 픽셀의 위치를 우선순위로 하여 상기 제 1 변환 블록의 스캔 오더를 변경하는 단계; 제 2 변환 블록 내 각 픽셀 위치에서 0이 아닌 변환 계수의 개수를 결정하고, 상기 제 1 변환 블록의 변경된 스캔 오더를 상기 제 2 변환 블록의 초기화된 스캔 오더로 설정하는 단계; 상기 제 1 변환 블록 내 각 픽셀 위치에서의 0이 아닌 변환 계수의 개수와 상기 제 2 변환 블록 내 각 픽셀 위치에서의 0이 아닌 변환 계수의 개수를 더하고 가장 많은 개수를 가진 픽셀의 위치를 우선순위로 하여 상기 제 2 변환 블록의 스캔 오더를 변경하는 단계; 및 상기 변경된 스캔 오더에 따라 배열된 변환 계수를 디코딩하는 단계를 포함하되, 상기 제 1 변환 블록과 상기 제 2 변환 블록은 상기 변환 크기 플래그에 대응되는 크기를 가지고, 상기 현재 매크로블록에 포함되는 것을 특징으로 하는 비디오 신호의 디코딩 방법을 제공한다.
PCT/KR2010/003639 2009-06-07 2010-06-07 비디오 신호의 디코딩 방법 및 장치 WO2010143853A2 (ko)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US13/376,503 US9100648B2 (en) 2009-06-07 2010-06-07 Method and apparatus for decoding a video signal
US14/711,129 US9635368B2 (en) 2009-06-07 2015-05-13 Method and apparatus for decoding a video signal
US15/460,013 US10015519B2 (en) 2009-06-07 2017-03-15 Method and apparatus for decoding a video signal
US15/993,229 US10405001B2 (en) 2009-06-07 2018-05-30 Method and apparatus for decoding a video signal
US16/519,897 US10986372B2 (en) 2009-06-07 2019-07-23 Method and apparatus for decoding a video signal
US17/208,100 US12120352B2 (en) 2009-06-07 2021-03-22 Method and apparatus for decoding a video signal

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
US18483409P 2009-06-07 2009-06-07
US61/184,834 2009-06-07
US25784409P 2009-11-04 2009-11-04
US61/257,844 2009-11-04
US28832309P 2009-12-20 2009-12-20
US61/288,323 2009-12-20
US29025109P 2009-12-28 2009-12-28
US29025009P 2009-12-28 2009-12-28
US61/290,250 2009-12-28
US61/290,251 2009-12-28
KR1020100053253A KR101805531B1 (ko) 2009-06-07 2010-06-07 비디오 신호의 디코딩 방법 및 장치
KR10-2010-0053253 2010-06-07

Related Child Applications (3)

Application Number Title Priority Date Filing Date
US13/376,503 A-371-Of-International US9100648B2 (en) 2009-06-07 2010-06-07 Method and apparatus for decoding a video signal
US14/711,129 Continuation US9635368B2 (en) 2009-06-07 2015-05-13 Method and apparatus for decoding a video signal
US14/711,129 Continuation-In-Part US9635368B2 (en) 2009-06-07 2015-05-13 Method and apparatus for decoding a video signal

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WO2010143853A3 WO2010143853A3 (ko) 2011-02-24

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