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Title: New adaptive pixel decimation for block motion vector estimation
Authors: Chan, YL 
Siu, WC 
Keywords: Adaptive codes
Image matching
Motion estimation
Video coding
Issue Date: Feb-1996
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on circuits and systems for video technology, Feb. 1996, v. 6, no. 1, p. 113-118 How to cite?
Journal: IEEE transactions on circuits and systems for video technology 
Abstract: A new adaptive technique based on pixel decimation for the estimation of motion vector is presented. In a traditional approach, a uniform pixel decimation is used. Since part of the pixels in each block do not enter into the matching criterion, this approach limits the accuracy of the motion vector. In this paper, we select the most representative pixels based on image content in each block for the matching criterion. This is due to the fact that high activity in the luminance signal such as edges and texture mainly contributes to the matching criterion. Our approach can compensate the drawback in standard pixel decimation techniques. Computer simulations show that this technique is close to the performance of the exhaustive search with significant computational reduction.
ISSN: 1051-8215
EISSN: 1558-2205
DOI: 10.1109/76.486426
Rights: © 1996 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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