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In order to get the best mode, H.264 computes the cost of every mode for each block by RDO (rate distortion optimization) technique, but it increases a high computational complexity .This paper combines Pan's fast algorithm and an efficient fast mode decision for intra prediction is proposed. First, the intra prediction's types are decided by whether a block is smooth. Second, the Pan's fast algorithm...
The H.264/AVC video coding standard adopts a robust rate-distortion optimization (RDO) arithmetic to select the best intra coding mode. As a result, it brings about large complexity and computational load. In this paper, a fast intra coding mode selection algorithm based on the greyscale for the H.264/AVC video coding standard is proposed. The algorithm dramatically reduces computational complexity...
H.264/AVC video coding standard uses the rate distortion optimization method which determines the best coding mode for macroblock (MB) to improve coding efficiency. Whereas RDO selects the best coding mode, it causes the heavy computational burden comparing with previous standards. In this paper, a fast intra prediction mode decision algorithm using two-path structure is proposed. In the first path,...
In order to achieve the high compression efficiency, H.264/AVC adopts rate-distortion optimization ( RDO ) technology with full mode search in intra prediction. The computational complexity is so high that it isn't fit for real time encoding and hardware design. So we proposed a fast and efficient intra prediction algorithm. We choose intra luma 4times4 or intra luma 16times16 based on smooth degree...
The rate-distortion optimization framework employed in H.264 for the selection of best coding mode is computationally expensive, although it achieves remarkable coding efficiency. In this paper, an integrated intra prediction algorithm for intra-frame coding of the H.264 high profile is proposed. It consists of two components: a variance-based method for macroblock mode decision and an improved filter-based...
In this paper, a fast mode decision algorithm for intra prediction in the H.264/AVC is proposed. We use the characteristics of each directional prediction mode to compute the strength of directional differences in the original pixel domain to find the minimal direction error. This is the first time reported in the literature that the intrinsic differences between the real-data and the predictors of...
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