发明授权
US09167253B2 Derivation of the position in scan order of the last significant transform coefficient in video coding
有权
以视频编码中最后一个有效变换系数的扫描顺序推导位置
- 专利标题： Derivation of the position in scan order of the last significant transform coefficient in video coding
- 专利标题（中）： 以视频编码中最后一个有效变换系数的扫描顺序推导位置
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申请号： US13534306申请日： 2012-06-27
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公开(公告)号： US09167253B2公开(公告)日： 2015-10-20
- 发明人: Joel Sole Rojals , Rajan Laxman Joshi , Marta Karczewicz
- 申请人： Joel Sole Rojals , Rajan Laxman Joshi , Marta Karczewicz
- 申请人地址： US CA San Diego
- 专利权人： QUALCOMM Incorporated
- 当前专利权人： QUALCOMM Incorporated
- 当前专利权人地址： US CA San Diego
- 代理机构： Shumaker & Sieffert, P.A.
- 主分类号： H04N19/13
- IPC分类号： H04N19/13 ; H04N19/91 ; H04N19/196 ; H04N19/129 ; H04N19/463 ; H04N19/44
摘要：
A video decoder converts a block-based LSC indicator into a scan-based LSC indicator. The block-based LSC indicator indicates coordinates of a last significant coefficient of a block of transform coefficients according to a scanning order. The scan-based LSC indicator indicates an ordinal position of the LSC according to the scanning order. The video decoder may decode, based on the scan-based LSC indicator, a significance map for the block.
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