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Proceedings Paper

Directional moving averaging interpolation for bilinear texture mapping
Author(s): Kou-chang Chen; Chang-Lin Huang
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Paper Abstract

In image wrapping, the post-filtering is necessary to avoid aliasing effect. Here, we develop a hybrid space-variant directional filtering for post-processing. In order to reduce the computation, we classify the filter area as three blocks: constant, oriented, and irregular. The constant and irregular blocks are local average filtering and elliptical weighted average filtering. In oriented model, we propose a new filtering method called elliptical weighted adaptive directional moving average filter. In the experiments, we show that our method may correct the distorted images and have better results, with better subjective quality, especially with high magnification ratio, such as four times or more.

Paper Details

Date Published: 16 September 1994
PDF: 12 pages
Proc. SPIE 2308, Visual Communications and Image Processing '94, (16 September 1994); doi: 10.1117/12.186021
Show Author Affiliations
Kou-chang Chen, National Tsing Hua Univ. (Taiwan)
Chang-Lin Huang, National Tsing Hua Univ. (Taiwan)

Published in SPIE Proceedings Vol. 2308:
Visual Communications and Image Processing '94
Aggelos K. Katsaggelos, Editor(s)

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