KR20080041744A - 동화상 부호화 방법 및 동화상 복호화 방법 - Google Patents
동화상 부호화 방법 및 동화상 복호화 방법 Download PDFInfo
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Abstract
Description
Claims (4)
- 부호화될 현재 픽처를 블록으로 분할하고, 블록 단위로 참조 픽처들 중에서 참조 픽처를 선택하며, 선택된 참조 픽처를 식별하는 정보를 기술하고, 블록 상에 예측 부호화를 수행하는 픽처 부호화 방법으로서,다수의 블록으로 구성된 다수-블록 화상 유닛을 부호화하기 위해, 다수의 참조 픽처들 중에서, 공통적으로 참조될 공통 참조 픽처를 선택하는 단계와;상기 선택된 공통 참조 픽처를 식별하는 정보를 블록 마다 기술하는 대신에, 상기 다수-블록 화상 유닛에 대한 공통 정보 영역에 상기 선택된 공통 참조 픽처를 식별하는 공통 정보를 기술하는 단계와;상기 선택된 공통 참조 픽처를 이용하여, 상기 다수-블록 화상 유닛에 포함된 부호화될 현재 블록의 예측 화상을 생성하는 단계; 및상기 예측 화상을 이용하여 상기 현재 블록을 부호화하는 단계를 포함하는 픽처 부호화 방법.
- 청구항 1에 있어서, 상기 다수-블록 화상 유닛은, 다수 픽처 유닛, 픽처 유닛, 및 슬라이스(slice) 유닛 중 하나 인, 픽처 부호화 방법.
- 부호화될 현재 픽처를 블록으로 분할하고, 블록 단위로 참조 픽처들 중에서 참조 픽처를 선택하며, 선택된 참조 픽처를 식별하는 정보를 기술하고, 블록 상에 예측 부호화를 수행하는 픽처 부호화 장치로서,다수의 블록으로 구성된 다수-블록 화상 유닛을 부호화하기 위해, 다수의 참조 픽처들 중에서, 공통적으로 참조될 공통 참조 픽처를 선택하는 유닛과;상기 선택된 공통 참조 픽처를 식별하는 정보를 블록 마다 기술하는 대신에, 상기 다수-블록 화상 유닛에 대한 공통 정보 영역에 상기 선택된 공통 참조 픽처를 식별하는 공통 정보를 기술하는 유닛과;상기 선택된 공통 참조 픽처를 이용하여, 상기 다수-블록 화상 유닛에 포함된 부호화될 현재 블록의 예측 화상을 생성하는 유닛; 및상기 예측 화상을 이용하여 상기 현재 블록을 부호화하는 유닛을 포함하는 픽처 부호화 장치.
- 청구항 3에 있어서, 상기 다수-블록 화상 유닛은, 다수 픽처 유닛, 픽처 유닛, 및 슬라이스 유닛 중 하나 인, 픽처 부호화 장치.
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AU (1) | AU2003235173A1 (ko) |
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