본 논문은 4K UHD 입력 영상에 대한 HEVC 고속 부호화를 위하여 대부분의 상용 CPU 및 AP 에서 사용되고 있는 SIMD (Single Instruction Mutiple Data) 명령어를 사용한 고속의 정수 화소 단위 움직임 추정방법에 대한 연구이다. 특히, IT 기기에서의 고속 동영상 부호화를 위해 기존의 SIMD 명령어를 개량하여 동일한 CPU 실행시간에 다수의 움직임 추정을 수행할 수 있는 SIMD 명령어를 사용하여 보다 같은 실행시간에 보다 넓은 영역에 대한 움직임 벡터 탐색을 수행할 수 있도록 Search Box 기법을 새로이 개발하고 이를 토대로 기존 HEVC 에서 사용되고 있는 움직임 추정 방법에 대하여 연산시간을 줄이는 동시에 화질 열화를 최소화 시킬 수 있는 방법에 대하여 논한다.
KSP Keywords
Single instruction
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