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학술지 Enhanced Block Motion Estimation Based on Distortion-Directional Search Patterns
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저자
김병규, 송석규, 마평수
발행일
200609
출처
Pattern Recognition Letters, v.27 no.12, pp.1325-1335
ISSN
0167-8655
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.patrec.2006.01.004
협약과제
05MW1200, 임베디드 S/W 기반 SmarTown 솔루션 기술, 마평수
초록
An improved algorithm for integer pel motion estimation based on the block matching algorithm (BMA) is presented for use in a block-based video coding system. To achieve enhanced motion estimation performance, we propose an adaptive search pattern length for each iteration of the current macro block (MB). In addition, search patterns that must be checked are determined using directional information based on the assumption of a unimodal distortion surface, thus reducing intermediate searches. This concept can be generalized to other search pattern algorithms, such as the diamond search (DS) and the three-step search (TSS). The proposed algorithm is tested with several sequences and excellent performance is verified. © 2006 Elsevier B.V. All rights reserved.
KSP 제안 키워드
Adaptive Search, Block Matching Algorithm, Block motion estimation, Coding system, Directional information, Improved algorithm, Macro block, Motion estimation(ME), Video coding, diamond search, directional search