发明名称 |
SPATIAL PREDICTION METHOD, IMAGE DECODING METHOD, AND IMAGE CODING METHOD |
摘要 |
A spatial prediction method capable of reducing the complexity of spatial prediction includes: detecting an edge (E) overlapping the current block by obtaining a horizontal gradient (Gy) and a vertical gradient (Gx) between pixels within a block adjacent to the current block; calculating an integer slope of the edge; determining, for each pixel position within the current block, a sub-pel position being an intersection between (i) a line that has the integer slope and passes through the pixel position and (ii) a boundary of the adjacent block; and predicting, for each pixel position, a pixel value at the pixel position based on a pixel value interpolated in the sub-pel position, wherein the boundary of the adjacent block is a row or a column that is the closest to the current block, among rows or columns of pixels included in the adjacent block. |
申请公布号 |
US2016057451(A1) |
申请公布日期 |
2016.02.25 |
申请号 |
US201514933221 |
申请日期 |
2015.11.05 |
申请人 |
Panasonic Intellectual Property Corporation of America |
发明人 |
DRUGEON Virginie;SHIBAHARA Youji;NISHI Takahiro;SASAI Hisao;TANIKAWA Kyoko |
分类号 |
H04N19/593;H04N19/44;H04N19/176 |
主分类号 |
H04N19/593 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Torrance CA US |