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Proceedings Paper

Adaptive partial matching using fast spatial transformation
Author(s): Dong-Keun Lim; Yo-Sung Ho
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Paper Abstract

In this paper, we examine new motion compensation methods based on the affine or bilinear transformation and derive fast algorithms for affine and bilinear transformation using vector relationship. We also develop a more effective motion estimation method than the conventional image warping method in terms of computational complexity, reconstructed image quality, and the number of coding bits. The performance of the proposed motion compensation method, which combines the affine or the bilinear transformation with the proposed adaptive partial matching, is evaluated experimentally. We simulate our proposed motion compensation method in a DCT- based coder by encoding CIF (Common Intermediate Format) images at bitrates of below 64 kb/s. The proposed adaptive partial matching method can reduce the computational complexity below about 50% of the hexagonal matching method, while maintaining the image quality comparable to the hexagonal method.

Paper Details

Date Published: 19 August 1998
PDF: 12 pages
Proc. SPIE 3561, Electronic Imaging and Multimedia Systems II, (19 August 1998); doi: 10.1117/12.319739
Show Author Affiliations
Dong-Keun Lim, Kwangju Institute of Science and Technology (South Korea)
Yo-Sung Ho, Kwangju Institute of Science and Technology (South Korea)

Published in SPIE Proceedings Vol. 3561:
Electronic Imaging and Multimedia Systems II
LiWei Zhou; Chung-Sheng Li, Editor(s)

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