An adaptive temporal-spatial filter for MPEG decoded video signals |
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| Authors: | Tsann-Shyong Liu Long-Wen Chang |
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| Affiliation: | (1) Institute of Computer Science, National Tsing Hua University, Hsinchu, Taiwan, R.O.C.;(2) Telecommunication Labs, P.O. Box 71, Chung-Li, Taiwan, R.O.C. |
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| Abstract: | A new adaptive post-processing algorithm for the MPEG decoded video sequences is proposed. We use a motion compensated averaging filter to reduce the noises in the temporal domain and an adaptive spatial filter to remove noise in the spatial domain and preserve the edge of different orientations in the image. A MPEG decoded video sequence called table tennis is processed by our proposed filter. The post-processed video sequence shows that its image quality is improved, especially of the moving objects. |
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