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Often the adaptive interpolation filter provides a more accurate interpolation technique in the formulation of the sub-pixel reference frame for motion estimation and compensation. Inspired by its possible advantages, we make use of the adaptive interpolation filter for efficient lossless intra prediction in H.264/AVC. Specifically, four subblocks are firstly formed by sampling pixels in one macroblock/block,...
In this paper, an improved lossless intra prediction algorithm based on H.264/AVC framework is proposed. In the new algorithm, samples in a macroblock/block are hierarchically predicted, instead of using a block-based prediction as a whole. More specifically, four groups are extracted from the samples in the MB/block. Samples in the first group are firstly predicted based on directional intra prediction...
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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