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H.264, MPEG-4 Part 10, is the recent digital video coding standard that achieves very high data compression by using several new coding features. One of the key features is intra prediction which is based on the rate distortion optimization (RDO) procedure, that requires a true encoding of the intra block by trying all intra prediction modes. The computational burden of intra prediction with the RDO...
Recently, scalable video coding technique has attracted a lot of attention for its desired scalable functionality and coding efficiency. H.264/SVC encodes a video in a hierarchical way by which the coded bit stream can satisfy terminals with different capability of display and different condition of network at the same time. However, the huge computational complexity of mode decision causes difficulties...
The relevance of the spatial domain is mainly eliminated by intra-prediction encoding. First, the traditional intra-prediction algorithms are introduced. And then, according to the correlation between the most likely mode and the best mode, a mode matrix is arrived at, the use of this mode matrix for early termination. The experimental results show that when we use this matrix in the proposed algorithm,...
The AVS video coding standard employs a robust Rate-Distortion Optimization (RDO) technique to improve compression performance. Although RDO technique can achieve better compression efficiency, it also increases tremendous computational complexity. In order to reduce complexity, this paper proposes a fast intra mode decision algorithm for AVS based on the ranking of Sum of Absolute Transformed Difference...
The H.264 video coding standard adopts many new coding tools, such as variable block size, multiple reference frames, quarter-pixel-accuracy motion estimation, intra prediction, loop filter, etc. Using these coding tools, H.264 achieves significant performance. Especially for reference frame, block size, and predication direction, it can adaptively do the selection. However, the encoding complexity...
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