PRE-processing for video coding with rate-distortion optimization decision

This paper proposes an adaptive video pre-processing algorithm for video coding. This algorithm works on the original image before intra- or inter-prediction. It adopts Gaussian filter to remove noise and insignificant features existing in images of video. Detection and restoration of edges are foll...

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Bibliographic Details
Published inJournal of China universities of posts and telecommunications Vol. 13; no. 2; pp. 79 - 83
Main Authors Qi, Yi, Huang, Yong-Gui, Qi, Hong-Gang
Format Journal Article
LanguageEnglish
Published 01.06.2006
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Summary:This paper proposes an adaptive video pre-processing algorithm for video coding. This algorithm works on the original image before intra- or inter-prediction. It adopts Gaussian filter to remove noise and insignificant features existing in images of video. Detection and restoration of edges are followed to restore the edges which are excessively filtered out in filtered images. Rate-Distortion Optimization (RDO) is employed to decide adaptively whether a processed block or a unprocessed block is coded into bit-streams does more efficient coding. Our experiment results show that the algorithm achieves good coding performances on both subjective and objective aspects. In addition, the proposed pre-processing algorithm is transparent to decoder, and thus can be compliant with any video coding standards without modifying the decoder.
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ISSN:1005-8885
DOI:10.1016/S1005-8885(07)60109-5