DocumentCode
1479345
Title
Motion estimation using low-bit oriented edge image for DCT-based video compression
Author
Qiu, Xiaohai ; Zhang, Wujian ; Chen, Hongyi ; Zhou, Runde
Author_Institution
Inst. of Microelectron., Tsinghua Univ., Beijing, China
Volume
37
Issue
8
fYear
2001
fDate
4/12/2001 12:00:00 AM
Firstpage
494
Lastpage
495
Abstract
A novel block-based motion estimation algorithm using a low-bit resolution oriented edge image (LROEI) is proposed. The algorithm produces difference blocks with little texture for DCT coding and enhances the encoding efficiency. Simulation based on a hierarchical subsampling telescope search confirms that the quality of the LROEI is superior to that of luminance image compared with HSTS using an 8 bit luminance image. The operational loads are also reduced to 75 or 50% without quality degradation
Keywords
data compression; discrete cosine transforms; edge detection; motion estimation; video coding; DCT coding; DCT-based video compression; HSTS; block-based motion estimation algorithm; difference blocks; encoding efficiency; hierarchical subsampling telescope search; low-bit oriented edge image; luminance image; motion estimation; operational loads; quality degradation;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20010352
Filename
919980
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