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Optical Engineering

Correlation-based normalized partial distortion search algorithm for motion estimation
Author(s): Chia-Hung Yeh; Ming-Te Wu; Shiunn-Jang Chern
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Paper Abstract

A modified partial distortion search algorithm considering the neighboring-block correlation property is proposed for fast motion estimation. The motion vector information of neighboring coded blocks is used to predict the possible occurrence region of the global-minimum-distortion position of the current block. In addition, a dynamic search-range decision algorithm is also proposed for automatically changing the size of the search range. Afterwards, the normalized partial distortion search is performed in the selected region instead of the whole search window. Through the proposed algorithms, the computational complexity can be significantly reduced with slight objective quality degradation.

Paper Details

Date Published: 1 July 2008
PDF: 6 pages
Opt. Eng. 47(7) 077003 doi: 10.1117/1.2955813
Published in: Optical Engineering Volume 47, Issue 7
Show Author Affiliations
Chia-Hung Yeh, National Sun Yat-Sen Univ. (Taiwan)
Ming-Te Wu, National Sun Yat-sen Univ. (Taiwan)
Shiunn-Jang Chern, National Sun Yat-sen Univ. (Taiwan)

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