Low Complexity Transform Competition For Hevc
2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)(2016)
摘要
The use of multiple transforms in video coding can lead to substantial bit-rate savings. However, these savings come at the expense of increased coding complexity and storage requirements, which challenge the usability of this approach. In this paper, a systematic procedure is proposed to design low complexity systems making use of transform competition. Multiple trade-offs accommodating the complexity are unveiled and it is demonstrated that they can keep a certain level of performance. Compared to the HEVC standard, some of them provide bit-rate savings around 2% with a 50% increase in the encoding time, using less than 4 kB of extra ROM and no added decoding complexity.
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关键词
DTT,transform,video,coding,HEVC
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