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Bandwidth sharing in video streaming applications becomes problematic with the explosion of live services. In such applications, compression optimization techniques are seen as an efficient way for enforcing high quality video transmission. In this paper, we propose a low-complexity adaptive encoding framework for H.264/AVC, in which the inverse transformation matrix is optimized for each frame, as...
In this paper we propose the use of intra-frame prediction with lapped transforms for image coding. Both lapped transforms and intra prediction exploit the redundancies of neighboring blocks and the combination of the two techniques results in a very efficient image coding scheme. The difficulty to combine them comes from the necessity to use for the prediction of the current block pixels in the causal...
In a typical competition-based coding, the pertinence of a prediction mode does not only depend on its own efficiency but also on the fact that it is complementary with the other modes. The method proposed in this paper to improve the intra coding of the H.264/AVC standard relies on this remark; it shows how the cost of signaling predictors that are quite similar can be avoided. Indeed, at low bitrates,...
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