DocumentCode :
3347156
Title :
A novel hexagon-based search algorithm for fast block motion estimation
Author :
Zhu, Ce ; Lin, Xiao ; Chau, Lap-Pui ; Lim, Keng-Pang ; Ang, Hock-Ann ; Ong, Choo-Yin
Author_Institution :
Centre for Signal Process., Nanyang Technol. Univ., Singapore, Singapore
Volume :
3
fYear :
2001
fDate :
2001
Firstpage :
1593
Abstract :
In block motion estimation, search patterns with different shape or size have a very important impact on search speed and distortion performance. In this paper, we propose a novel algorithm using a hexagon-based search (HEXBS) pattern for fast block motion estimation. The proposed HEXBS algorithm may find any motion vector with fewer search points than the diamond search (DS) algorithm. The speedup gain of the HEXBS method over the DS algorithm is more striking for finding large motion vectors. Experimental results substantially justify the fastest performance of the HEXBS algorithm compared with several other popular fast algorithms
Keywords :
motion estimation; search problems; video coding; HEXBS algorithm; diamond search algorithm; fast block motion estimation; hexagon-based search algorithm; hexagon-based search pattern; motion vectors; video coding; Algorithm design and analysis; Distortion; Motion estimation; Shape; Signal processing algorithms; Video coding;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
ISSN :
1520-6149
Print_ISBN :
0-7803-7041-4
Type :
conf
DOI :
10.1109/ICASSP.2001.941239
Filename :
941239
Link To Document :
بازگشت