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Enhanced block motion estimation based on distortion-directional search patternsEnhanced block motion estimation based on distortion-directional search patterns

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Enhanced block motion estimation based on distortion-directional search patterns
Authors
Kim, Byung GyuSong, Suk-KyuMah, Pyoung-Soo
Issue Date
Sep-2006
Publisher
Elsevier BV
Citation
Pattern Recognition Letters, v.27, no.12, pp 1325 - 1335
Pages
11
Journal Title
Pattern Recognition Letters
Volume
27
Number
12
Start Page
1325
End Page
1335
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/148557
DOI
10.1016/j.patrec.2006.01.004
ISSN
0167-8655
1872-7344
Abstract
An improved algorithm for integer pel motion estimation based on the block matching algorithm (BMA) is presented for use in a block-based video coding system. To achieve enhanced motion estimation performance, we propose an adaptive search pattern length for each iteration of the current macro block (MB). In addition, search patterns that must be checked are determined using directional information based on the assumption of a unimodal distortion surface, thus reducing intermediate searches. This concept can be generalized to other search pattern algorithms, such as the diamond search (DS) and the three-step search (TSS). The proposed algorithm is tested with several sequences and excellent performance is verified. (c) 2006 Elsevier B.V. All rights reserved.
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Kim, Byung Gyu
공과대학 (인공지능공학부)
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