Enhanced Hexagonal Search for Fast Block Motion Estimation
2004; Institute of Electrical and Electronics Engineers; Volume: 14; Issue: 10 Linguagem: Inglês
10.1109/tcsvt.2004.833166
ISSN1558-2205
AutoresCe Zhu, Xiao Lin, Lap‐Pui Chau, Lai-Man Po,
Tópico(s)Advanced Image Processing Techniques
ResumoFast block motion estimation normally consists of low-resolution coarse search and the following fine-resolution inner search. Most motion estimation algorithms developed attempt to speed up the coarse search without considering accelerating the focused inner search. On top of the hexagonal search method recently developed, an enhanced hexagonal search algorithm is proposed to further improve the performance in terms of reducing number of search points and distortion, where a novel fast inner search is employed by exploiting the distortion information of the evaluated points. Our experimental results substantially justify the merits of the proposed algorithm.
Referência(s)