- 专利标题： CODING DEVICE, DECODING DEVICE, CODING METHOD, AND DECODING METHOD
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申请号： EP20826441.6申请日： 2020-06-15
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公开(公告)号： EP3989575A1公开(公告)日： 2022-04-27
- 发明人: TOMA, Tadamasa , NISHI, Takahiro , ABE, Kiyofumi , KATO, Yusuke
- 申请人： Panasonic Intellectual Property Corporation of America
- 申请人地址： US Torrance, CA 90504 2050 W 190th Street Suite 450
- 代理机构： Grünecker Patent- und Rechtsanwälte PartG mbB
- 优先权： US201962864728 P 20190621
- 国际公布： WO2020255903 20201224
- 主分类号： H04N19/577
- IPC分类号： H04N19/577
摘要：
An encoder (100) includes circuitry and memory connected to the circuitry. The circuitry, in operation: derives, as a first parameter, a total sum of absolute values of sums of horizontal gradient values respectively for pairs of relative pixel positions; derives, as a second parameter, a total sum of absolute values of sums of vertical gradient values respectively for the pairs of relative pixel positions; derives, as a third parameter, a total sum of horizontal-related pixel difference values respectively for the pairs of relative pixel positions; derives, as a fourth parameter, a total sum of vertical-related pixel difference values respectively for the pairs of relative pixel positions; derives, as a fifth parameter, a total sum of vertical-related sums of horizontal gradient values respectively for the pairs of relative pixel positions; and generates a prediction image to be used to encode the current block using the first, second, third, fourth, and fifth parameters.
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