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성과물

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구분 출원국
출원년도 ~ 키워드

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등록 계층탐색 기반의 혼합형 움직임 추정장치 및 방법

계층탐색 기반의 혼합형 움직임 추정장치 및 방법
이미지 확대
발명자
박성모, 김성민, 신경선, 김경수, 김익균
출원번호
10057670 (2002.01.24)
공개번호
20030112872 (2003.06.19)
등록번호
6907074 (2005.06.14)
출원국
미국
협약과제
01MM2200, IMT-2000용 MPEG-4코덱 ASIC개발, 김익균
초록
An apparatus and a method for performing mixed motion estimation based on a hierarchical search are provided. In the method, motion vectors of previous image data are received. The median value of the motion vectors is obtained. Current image data is received. Motion of the current image data is compensated for based on the median value of the motion vectors. SAD values of the previous image data are received and the maximum value of the SAD values is obtained. The motion compensation result is compared with the maximum value of the SAD values. Motion estimation of the current image data is skipped and the motion compensation result is output if the motion compensation result is smaller than the maximum value of the SAD values. Motion estimation for the current image data is performed if the motion compensation result is greater than or equal to the maximum value of the SAD values, and the motion estimation result is output.
KSP 제안 키워드
Current image, Hierarchical search, Image data, Motion Compensation(MoCo), Motion Vector(MV), Motion estimation(ME), Previous image