PALETTE CODING MODES AND PALETTE FLIPPING

专利名称：PALETTE CODING MODES AND PALETTE

FLIPPING

发明人：XIU, Xiaoyu,YE, Yan,HE, Yuwen申请号：EP16710506.3申请日：20160128公开号：EP3251353A1公开日：20171206

摘要：An palette index map of a video coding unit may be flipped during palettecoding if a large run of similar pixels are present at the beginning of the coding unit and asmall run of similar pixels are present at the end of the coding unit. The flipping mayenable efficient signaling and coding of the large run of pixels. An indication may be sentsignaling the flipping. During decoding, an inverse flip may be performed to restore thepixels of the flipped coding unit to their original positions. Selection of a prediction modefor palette coding may take into account various combinations of an index mode runfollowed by a copy-above mode run. A prediction mode with die smallest per-pixelaverage bit cost may be selected. Palette sharing may be enabled.

申请人：VID SCALE, Inc.

地址：200 Bellevue Parkway, Suite 300 Wilmington, DE 19809 US

国籍：US

代理机构：Awapatent AB

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