ISO/IEC JTC1 WG11 Moving Picture Expers Group 과 ITU-T SC16 은 Joint Video Experts Team 을 구성하여 차세대 비디오 부호화 표준으로서 Versatile Video Coding(VVC)를 표준화 중이다. VVC 는 현재 블록의 화면내 예측 모드일 가능성이 높은 모드의 집합인 Most Probable Mode(MPM) 리스트를 유도하고, MPM 을 이용하여 효율적으로 화면내 예측 모드를 부호화한다. VVC 는 주변 블록의 화면내 예측 모드에 따라 7가지 종류의 MPM 리스트 유도 방식을 가지고 있으나 이 중 두 가지는 동일한 MPM 들로 유도되는 중복성이 있다. 따라서 본 논문은 이 중복성 문제를 해결하기 위한 MPM 유도 방법을 제안한다. 제안 방법은 MPM 유도조건을 수정하여 중복적인 유도 방식이 제거된 6 가지 MPM 리스트 유도 방식을 갖는다. 실험을 통해 제안방법이 부호화 효율에 전혀 영향을 주기 않고 MPM 유도 과정을 단순화시켰음을 보인다.
KSP Keywords
ITU-T, Most Probable Mode, Moving picture, Video coding
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