KR101552633B1 - 예측 단위의 파티션 모드에 기초한 계수 스캔 방법 및 장치 - Google Patents
예측 단위의 파티션 모드에 기초한 계수 스캔 방법 및 장치 Download PDFInfo
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Abstract
Description
도 2는 본 발명의 일실시예에 따른 영상 복호화 장치를 나타낸 블록도이다.
도 3은 본 발명이 적용되는 계수 스캔(coefficient scan) 방법을 개략적으로 나타내는 도면이다.
도 4는 본 발명의 실시예에 따른 예측 단위의 파티션 모드에 따라 스캔 방법을 결정하고 이를 부호화하는 방법을 설명하기 위한 도면이다.
도 5는 본 발명의 실시예에 따른 AMP(Asymmetric Motion Partition)에서 스캔 방법을 결정하고 이를 부호화하는 방법을 설명하기 위한 도면이다.
도 6은 본 발명의 실시예에 따른 SDIP(Short Distance Intra Prediction; 단거리 인트라 예측)에서 스캔 방법을 결정하고 이를 부호화하는 방법을 설명하기 위한 도면이다.
도 7은 전술한 본 발명이 적용되는 영상 부호화 방법을 나타낸 순서도이다.
도 8은 전술한 본 발명이 적용되는 영상 복호화 방법을 나타낸 순서도이다.
| PU Partition mode | Scan pattern |
| PART_2N x N | 수직 방향 스캔/지그-재그 스캔 |
| PART_N x 2N | 수평 방향 스캔/지그-재그 스캔 |
| PART_2N x 2N | 지그-재그 스캔 |
| PART_N x N | 지그-재그 스캔 |
Claims (6)
- 비트스트림으로부터 현재 블록의 레지듀얼 샘플 및 상기 현재 블록의 시간적 모션 벡터 후보자를 특정하기 위한 참조 픽쳐 인덱스를 획득하는 단계;
상기 현재 블록의 공간적 이웃 블록으로부터 공간적 모션 벡터 후보자를 획득하는 단계;
상기 참조 픽쳐 인덱스에 기초하여 상기 현재 블록의 시간적 모션 벡터 후보자와 관련된 콜 픽쳐를 선택하는 단계;
상기 콜 픽쳐에 포함된 콜 블록으로부터 상기 현재 블록의 시간적 모션 벡터 후보자를 획득하는 단계;
상기 공간적 모션 벡터 후보자와 상기 시간적 모션 벡터 후보자를 포함한 모션 벡터 후보 리스트를 생성하는 단계;
상기 모션 벡터 후보 리스트와 상기 현재 블록의 후보 인덱스에 기초하여 상기 현재 블록의 모션 벡터 예측값을 유도하는 단계; 여기서, 상기 후보 인덱스는 상기 모션 벡터 후보 리스트에 포함된 공간적 모션 벡터 후보자와 시간적 모션 벡터 후보자 중 어느 하나를 특정함,
상기 모션 벡터 예측값과 상기 현재 블록의 모션 벡터 차분값을 이용하여 상기 현재 블록의 모션 벡터를 유도하는 단계;
상기 모션 벡터를 이용하여 상기 현재 블록의 예측 샘플을 획득하는 단계; 및
상기 레지듀얼 샘플 및 상기 예측 샘플을 이용하여 상기 현재 블록을 복원하는 단계를 포함하는 것을 특징으로 하는 비디오 신호 디코딩 방법. - 제1항에 있어서, 상기 콜 픽쳐는 상기 현재 블록을 포함한 현재 픽쳐와 다른 시간적 순서를 가지는 것을 특징으로 하는 비디오 신호 디코딩 방법.
- 제2항에 있어서, 상기 콜 블록은 상기 현재 블록과 동일 위치의 블록인 것을 특징으로 하는 비디오 신호 디코딩 방법.
- 제1항에 있어서, 상기 공간적 이웃 블록은 상기 현재 블록의 좌측 이웃 블록 또는 상단 이웃 블록 중 적어도 하나를 포함하는 것을 특징으로 하는 비디오 신호 디코딩 방법.
- 제4항에 있어서, 상기 모션 벡터 후보 리스트에서 복수 개의 모션 벡터 후보자들은 기정의된 순서로 배열되는 것을 특징으로 하는 비디오 신호 디코딩 방법.
- 제5항에 있어서, 상기 복수 개의 모션 벡터 후보자들은 상기 공간적 모션 벡터 후보자, 상기 시간적 모션 벡터 후보자의 순으로 배열되는 것을 특징으로 하는 비디오 신호 디코딩 방법.
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| KR1020140148220A Expired - Fee Related KR102070319B1 (ko) | 2011-11-08 | 2014-10-29 | 예측 단위의 파티션 모드에 기초한 계수 스캔 방법 및 장치 |
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| KR1020140148219A Active KR101552635B1 (ko) | 2011-11-08 | 2014-10-29 | 예측 단위의 파티션 모드에 기초한 계수 스캔 방법 및 장치 |
| KR1020140148217A Active KR101552633B1 (ko) | 2011-11-08 | 2014-10-29 | 예측 단위의 파티션 모드에 기초한 계수 스캔 방법 및 장치 |
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| KR1020140148220A Expired - Fee Related KR102070319B1 (ko) | 2011-11-08 | 2014-10-29 | 예측 단위의 파티션 모드에 기초한 계수 스캔 방법 및 장치 |
| KR1020140148216A Active KR101552632B1 (ko) | 2011-11-08 | 2014-10-29 | 예측 단위의 파티션 모드에 기초한 계수 스캔 방법 및 장치 |
| KR1020140148219A Active KR101552635B1 (ko) | 2011-11-08 | 2014-10-29 | 예측 단위의 파티션 모드에 기초한 계수 스캔 방법 및 장치 |
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| KR (6) | KR101520369B1 (ko) |
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| US8526499B2 (en) * | 2007-06-15 | 2013-09-03 | Sungkyunkwan University Foundation For Corporate Collaboration | Bi-prediction coding method and apparatus, bi-prediction decoding method and apparatus, and recording medium |
| WO2008153262A1 (en) | 2007-06-15 | 2008-12-18 | Sungkyunkwan University Foundation For Corporate Collaboration | Bi-prediction coding method and apparatus, bi-prediction decoding method and apparatus, and recording midium |
| WO2009051419A2 (en) * | 2007-10-16 | 2009-04-23 | Lg Electronics Inc. | A method and an apparatus for processing a video signal |
| KR20130049526A (ko) * | 2011-11-04 | 2013-05-14 | 오수미 | 복원 블록 생성 방법 |
| CN104378638B (zh) * | 2011-11-08 | 2017-12-01 | 株式会社Kt | 对具有待被解码的当前块的视频信号进行解码的方法 |
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