Title :
Two-step motion estimation algorithm for large search range using outlier pixel exclusion
Author :
Lee, S. ; Chae, S.-I.
Author_Institution :
Dept. of Inf. Electron. Eng., Ewha Women´´s Univ., Seoul, South Korea
fDate :
1/17/2002 12:00:00 AM
Abstract :
A new two-step motion estimation algorithm is proposed for large search range. It exploits minimum mean-absolute-error quantisation and outlier pixel exclusion to reduce performance degradation. With respect to the full search algorithm, the hardware cost is reduced to 1/144 with similar peak signal-to-noise ratio performance when the search range is ±128×±128
Keywords :
errors; minimisation; motion estimation; noise; quantisation (signal); block-matching criterion; hardware cost reduction; large search range; minimum mean-absolute-error quantisation; outlier pixel exclusion; peak SNR performance; performance degradation reduction; signal-to-noise ratio performance; two-step motion estimation algorithm;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020054
