KR101373819B1 - 인트라 예측 모드 복호화 방법 - Google Patents
인트라 예측 모드 복호화 방법 Download PDFInfo
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- 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
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
Abstract
Description
바람직하게는, 상기 유효한 인트라 예측 모드가 비방향성 인트라 예측 모드이면, 상기 2개의 인트라 예측 모드들은 다른 하나의 비방향성 인트라 예측 모드 및 수직 모드이고, 보다 바람직하게는, 상기 유효한 인트라 예측 모드가 DC 모드이면, 상기 2개의 인트라 예측 모드들은 플래너 모드와 수직 모드이며, 보다 바람직하게는, 상기 유효한 인트라 예측 모드가 플래너 모드이면, 상기 2개의 인트라 예측 모드들은 DC 모드와 수직 모드이다.
바람직하게는, 상기 제2인트라 예측 모드 그룹은 상기 제1인트라 예측 모드 그룹에 속하는 인트라 예측 모드들 이외의 인트라 예측 모드들로 구성된다.
도 2는 본 발명에 따른 동영상 부호화 장치의 인트라 예측부의 구성을 나타내는 블록도이다.
도 3은 본 발명에 따른 인트라 예측에 사용되는 참조 화소들의 위치를 나타내는 도면이다.
도 4는 본 발명에 따른 방향성 인트라 예측 모드를 나타내는 도면이다.
도 5는 본 발명에 따른 동영상 복호화 장치의 구성을 나타내는 블록도이다.
도 6은 본 발명에 따른 동영상 복호화 장치의 인트라 예측부의 구성을 나타내는 블록도이다.
도 7은 본 발명에 따른 인트라 예측 모드의 복호화 과정을 나타내는 도면이다.
도 8은 본 발명에 따른 인트라 예측 모드 복원 방법에 대한 일 실시예의 수행 과정을 나타내는 도면이다.
도 9는 본 발명에 따른 인트라 예측 모드를 복원 방법에 대한 다른 실시예의 수행 과정을 나타내는 도면이다.
Claims (17)
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- 현재 예측 유닛의 인트라 예측 모드 그룹 지시자와 예측 모드 인덱스를 복원하는 단계;
현재 예측 유닛의 좌측 및 상측 예측 유닛의 이용 가능한 인트라 예측 모드들을 이용하여 제1인트라 예측모드 그룹을 생성하는 단계;
상기 인트라 예측 모드 그룹 지시자가 상기 제1인트라 예측 모드 그룹을 나타내면, 상기 인트라 예측 모드 인덱스가 나타내는 상기 제1인트라 예측 모드 그룹 내의 인트라 예측 모드를 현재 예측 유닛의 인트라 예측 모드로 결정하는 단계; 및
상기 인트라 예측 모드 그룹 지시자가 제2인트라 예측 모드 그룹을 나타내면, 상기 인트라 예측 모드 인덱스가 나타내는 상기 제2인트라 예측 모드 그룹 내의 인트라 예측 모드를 현재 예측 유닛의 인트라 예측 모드로 결정하는 단계;를 포함하고,
상기 좌측 및 상측 인트라 예측 모드들 중 하나만이 유효하면, 상기 제1 인트라 예측 모드 그룹은 상기 유효한 인트라 예측 모드 및 상기 유효한 인트라 예측 모드에 따라 결정되는 2개의 인트라 예측 모드들로 구성되는 것을 특징으로 하는 인트라 예측 모드 복호화 방법. - 제 13항에 있어서,
상기 유효한 인트라 예측 모드가 비방향성 인트라 예측 모드이면, 상기 2개의 인트라 예측 모드들은 다른 하나의 비방향성 인트라 예측 모드 및 수직 모드인 것을 특징으로 하는 인트라 예측 모드 복호화 방법. - 제 14항에 있어서,
상기 유효한 인트라 예측 모드가 DC 모드이면, 상기 2개의 인트라 예측 모드들은 플래너 모드와 수직 모드인 것을 특징으로 하는 인트라 예측 모드 복호화 방법. - 제 14항에 있어서,
상기 유효한 인트라 예측 모드가 플래너 모드이면, 상기 2개의 인트라 예측 모드들은 DC 모드와 수직 모드인 것을 특징으로 하는 인트라 예측 모드 복호화 방법. - 제 13항에 있어서,
상기 제2인트라 예측 모드 그룹은 상기 제1인트라 예측 모드 그룹에 속하는 인트라 예측 모드들 이외의 인트라 예측 모드들로 구성되는 것을 특징으로 하는 인트라 예측 모드 복호화 방법.
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KR1020100079529 | 2010-08-17 | ||
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KR1020110064301A KR20120058384A (ko) | 2010-08-17 | 2011-06-30 | 인트라 프리딕션 방법 |
PCT/KR2011/005941 WO2012023762A2 (ko) | 2010-08-17 | 2011-08-12 | 인트라 예측 복호화 방법 |
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KR1020137020599A Division KR101854489B1 (ko) | 2010-08-17 | 2011-08-12 | 인트라 예측 모드 복호화 방법 |
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KR1020187009846A KR20180039757A (ko) | 2010-08-17 | 2011-08-12 | 영상 복호화 장치 |
KR1020127028865A KR101373819B1 (ko) | 2010-08-17 | 2011-08-12 | 인트라 예측 모드 복호화 방법 |
KR1020147010247A KR20140057673A (ko) | 2010-08-17 | 2011-08-12 | 인트라 예측 복호화 방법 |
KR1020187009844A KR20180039755A (ko) | 2010-08-17 | 2011-08-12 | 영상 복호화 장치 |
KR1020137020598A KR20130091799A (ko) | 2010-08-17 | 2011-08-12 | 인트라 예측 복호화 방법 |
KR1020187009841A KR20180039752A (ko) | 2010-08-17 | 2011-08-12 | 영상 부호화 장치 |
KR1020187009843A KR20180039754A (ko) | 2010-08-17 | 2011-08-12 | 영상 복호화 장치 |
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KR1020187009842A KR20180039753A (ko) | 2010-08-17 | 2011-08-12 | 영상 복호화 장치 |
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KR1020147010246A KR20140057672A (ko) | 2010-08-17 | 2011-08-12 | 인트라 예측 복호화 방법 |
KR1020187009845A KR20180039756A (ko) | 2010-08-17 | 2011-08-12 | 영상 복호화 장치 |
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KR1020137020598A KR20130091799A (ko) | 2010-08-17 | 2011-08-12 | 인트라 예측 복호화 방법 |
KR1020187009841A KR20180039752A (ko) | 2010-08-17 | 2011-08-12 | 영상 부호화 장치 |
KR1020187009843A KR20180039754A (ko) | 2010-08-17 | 2011-08-12 | 영상 복호화 장치 |
KR1020187009839A KR20180039750A (ko) | 2010-08-17 | 2011-08-12 | 영상 부호화 장치 |
KR1020147010248A KR101474987B1 (ko) | 2010-08-17 | 2011-08-12 | 잔차 신호 부호화 장치 |
KR1020187009842A KR20180039753A (ko) | 2010-08-17 | 2011-08-12 | 영상 복호화 장치 |
KR1020187009840A KR20180039751A (ko) | 2010-08-17 | 2011-08-12 | 영상 부호화 장치 |
KR1020147010246A KR20140057672A (ko) | 2010-08-17 | 2011-08-12 | 인트라 예측 복호화 방법 |
KR1020187009845A KR20180039756A (ko) | 2010-08-17 | 2011-08-12 | 영상 복호화 장치 |
KR1020137020599A KR101854489B1 (ko) | 2010-08-17 | 2011-08-12 | 인트라 예측 모드 복호화 방법 |
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