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Proceedings Paper

Hierarchical edge-based block motion estimation for video subband coding at low bit-rates
Author(s): Joon-Hyeon Jeon; Jae-Kyoon Kim
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Paper Abstract

In this paper, a new hierarchical edge-based block motion estimation scheme is proposed for the exact motion estimation in the passband structure. The basic idea is to estimate an initial motion at the top-most layer in order to increase the accuracy of the motion displacement at the next lower layers in the motion estimation pyramid. This is based on a blockmatching method by the block-edge pattern. In addition, we present a technique of classifying a block- edge pattern by use of only two parameters, which are obtained by calculating two highpass subband signals at the top-most layer in the motion estimation pyramid. Using this scheme, the coding performance is improved by the exact motion estimation. We also present a method to encode the residual error frames in a passband structure. Simulation results show that the performance of the scheme with the edge-based initial motion estimation is better than without it, especially when a high degree of motion exists.

Paper Details

Date Published: 22 October 1993
PDF: 13 pages
Proc. SPIE 2094, Visual Communications and Image Processing '93, (22 October 1993); doi: 10.1117/12.157952
Show Author Affiliations
Joon-Hyeon Jeon, Korea Telecom Research Ctr. (South Korea)
Jae-Kyoon Kim, KAIST (South Korea)


Published in SPIE Proceedings Vol. 2094:
Visual Communications and Image Processing '93
Barry G. Haskell; Hsueh-Ming Hang, Editor(s)

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