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AHG12: One CTU delay wavefront parallel processing
Abstract
This contribution proposes one CTU delay wavefront parallel processing instead of two CTU delay as in HEVC design. The WPP processing is capable of a number of parallel processing with limited coding loss but two CTU delay could hamper the parallel processing capability. Because the target resolution is getting larger and number of CPUs is increasing, it is asserted that more parallel processing capability by leveraging the proposed one CTU delay is beneficial to reduce coding latency and it would fully utilize CTU power. It is also asserted the processing delay can be reduced roughly by 25.8 % (62 CTUs to 46 CTUs) by one CTU delay WPP compared to two CTU delay WPP.
JVET-N0150 AHG12: One CTU delay wavefront parallel processing [T. Ikai (Sharp)]
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JVET-N0150 AHG12: One CTU delay wavefront parallel processing [T. Ikai (Sharp)]
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