KR20190016981A - 인트라 예측 정보 부호화 방법 및 장치 - Google Patents
인트라 예측 정보 부호화 방법 및 장치 Download PDFInfo
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Abstract
따라서, 유효한 MPM 후보자의 방향성에 따라 MPM 후보자를 추가하거나 잔여 인트라 예측 모드를 재정렬하여 현재 블록의 인트라 예측 모드의 부호화 정보가 최소가 되게 하는 효과가 있다.
Description
도 2는 본 발명의 일 실시예에 따른 동영상 복호화 장치를 나타내는 블록 구성도이다.
도 3은 본 발명의 일 실시예에 따른 동영상 복호화 장치에서의 인트라 예측 블록을 생성하는 방법에 대해 설명한다.
도 4는 본 발명에 일 실시예에 따른 인트라 예측 모드를 나타내는 도면이다.
Claims (1)
- 현재 블록의 인트라 예측 모드를 결정하는 단계;
상기 현재 블록의 좌측 및 상측 블록의 유효한 인트라 예측 모드를 이용하여 제1 그룹을 구성하는 단계;
상기 현재 블록의 인트라 예측 모드 그룹 지시자와 예측모드 인덱스를 결정하는 단계; 및
상기 인트라 예측 모드 그룹 지시자와 예측모드 인덱스를 부호화하는 단계를 포함하고,
상기 인트라 예측모드 그룹 지시자는 현재 블록의 인트라 예측 모드가 상기 제1 그룹에 속하는지, 제2 그룹에 속하는지를 나타내고,
상기 인트라 예측 모드 그룹 지시자에 따라 상기 예측모드 인덱스가 다른 방법으로 이진화되어 엔트로피 부호화되고,
인트라 예측 모드들 중 플래너 모드(Planar mode)에 0의 예측모드 인덱스가 할당되고, DC 모드에 1의 예측모드 인덱스가 할당되고,
상기 현재 블록의 좌측 및 상측 블록의 인트라 예측 모드가 모두 유효하고 서로 동일하지 않은 경우, 상기 제1 그룹은 상기 좌측 및 상측 블록의 인트라 예측모드들을 포함하고, 상기 좌측 및 상측 블록의 인트라 예측 모드에 따라 결정되는 1개의 인트라 예측모드가 상기 제1 그룹에 추가되고,
상기 좌측 및 상측 블록의 인트라 예측 모드들이 플래너 모드가 아닌 경우, 상기 추가되는 인트라 예측 모드는 플래너 모드이고,
상기 인트라 예측 모드 그룹 지시자가 제1 그룹을 나타내는 경우, 상기 예측모드 인덱스는 truncated unary 방식으로 이진화되어 엔트로피 부호화되는 것을 특징으로 하는 인트라 예측 정보 부호화 방법.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20110108452 | 2011-10-24 | ||
| KR1020110108452 | 2011-10-24 | ||
| KR1020120041299A KR101947657B1 (ko) | 2011-10-24 | 2012-04-20 | 인트라 예측 정보 부호화 방법 및 장치 |
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| KR20190016981A true KR20190016981A (ko) | 2019-02-19 |
| KR102398642B1 KR102398642B1 (ko) | 2022-05-17 |
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| KR20120041316A Withdrawn KR20130045153A (ko) | 2011-10-24 | 2012-04-20 | 영상 복호화 장치 |
| KR1020190004893A Active KR102398642B1 (ko) | 2011-10-24 | 2019-01-14 | 인트라 예측 정보 부호화 방법 및 장치 |
| KR1020190004896A Active KR102398644B1 (ko) | 2011-10-24 | 2019-01-14 | 인트라 예측 정보 부호화 방법 및 장치 |
| KR1020190004895A Active KR102398643B1 (ko) | 2011-10-24 | 2019-01-14 | 인트라 예측 정보 부호화 방법 및 장치 |
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| KR20120041316A Withdrawn KR20130045153A (ko) | 2011-10-24 | 2012-04-20 | 영상 복호화 장치 |
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| KR1020190004895A Active KR102398643B1 (ko) | 2011-10-24 | 2019-01-14 | 인트라 예측 정보 부호화 방법 및 장치 |
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| PL3125552T3 (pl) | 2010-08-17 | 2018-09-28 | M&K Holdings Inc. | Sposób przywracania trybu intra-predykcji |
| US11284072B2 (en) | 2010-08-17 | 2022-03-22 | M&K Holdings Inc. | Apparatus for decoding an image |
| KR20130049522A (ko) * | 2011-11-04 | 2013-05-14 | 오수미 | 인트라 예측 블록 생성 방법 |
| KR20130049525A (ko) * | 2011-11-04 | 2013-05-14 | 오수미 | 잔차 블록 복원을 위한 역변환 방법 |
| CN103220506B (zh) | 2012-01-19 | 2015-11-25 | 华为技术有限公司 | 一种编解码方法和设备 |
| US9210438B2 (en) * | 2012-01-20 | 2015-12-08 | Sony Corporation | Logical intra mode naming in HEVC video coding |
| PL3723369T3 (pl) | 2012-01-20 | 2025-02-24 | Dolby Laboratories Licensing Corporation | Urządzenie do odwzorowywania trybu predykcji wewnątrzramkowej |
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| EP3361726A1 (en) | 2015-11-24 | 2018-08-15 | Samsung Electronics Co., Ltd. | Method and device for video decoding and method and device for video encoding |
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| CN117041568A (zh) * | 2016-11-29 | 2023-11-10 | 韩国电子通信研究院 | 图像编码/解码方法和用于存储比特流的记录介质 |
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