Parallel processing for combined intra prediction in high efficiency video coding
ICIP(2011)
摘要
Advanced intra prediction is one of the key components in highly efficient video coding since it reduces the bit-rate of the most costly intra frames. Combined Intra Prediction (CIP) is a novel tool that takes into account well established directional prediction from neighboring blocks, as well as local mean prediction from current block. In this way, it reduces bit-rate by further exploiting spatial redundancy. This paper proposes an implementation that will overcome its potential limitation limited parallelization capabilities. In order to make it more computationally parallelizable, adaptive open-loop prediction templates have been designed. Experiments have been performed which show that the proposed design preserves coding gains introduced by CIP, while providing a solution for more parallelizable, and therefore faster, implementations.
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关键词
parallel processing,intra frame bit-rate reduction,combined intra prediction,directional prediction,spatial redundancy,adaptive open loop prediction templates,intra prediction,video coding,redundancy,high efficiency video coding,open-loop prediction,prediction theory,cip tool,local mean prediction,parallelization,decoding,coding gain,encoding
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