发明名称 |
IMAGE CODING METHOD AND IMAGE DECODING METHOD |
摘要 |
An image coding method for coding an input image per block to generate a coded image signal includes: predicting for each prediction unit which is an area obtained by partitioning a target block to generate a prediction image of the target block; comparing a transform unit which is an area obtained by partitioning the target block and is a processing unit for frequency transform with the prediction unit, to detect part of a boundary of the prediction unit, the boundary being located within the transform unit; performing boundary filtering on the detected part of the boundary in the generated prediction image; calculating a difference between a filtered prediction image and the input image to generate a difference image of the target block; and performing frequency transform on the difference image for each transform unit. |
申请公布号 |
US2016309148(A1) |
申请公布日期 |
2016.10.20 |
申请号 |
US201615198288 |
申请日期 |
2016.06.30 |
申请人 |
Sun Patent Trust |
发明人 |
SASAI Hisao;NISHI Takahiro;SHIBAHARA Youji |
分类号 |
H04N19/117;H04N19/513;H04N19/86;H04N19/18;H04N19/122;H04N19/176 |
主分类号 |
H04N19/117 |
代理机构 |
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代理人 |
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主权项 |
1. An image decoding method for decoding a coded image signal obtained by coding an image per block, the image decoding method comprising:
performing inverse transform for transform units each of which is an area obtained by partitioning a target block, to generate a decoded difference image of the target block; performing prediction process on prediction units each of which is an area obtained by partitioning the target block, to generate a prediction image of the target block; adding the prediction image and the decoded difference image to generate a decoded image of the target block; and performing a boundary filtering process on a boundary of the prediction unit in the generated decoded image, when the boundary of the prediction unit is located within a transform unit, the transform unit being an area obtained by partitioning the target block and being a processing unit for frequency transform. |
地址 |
New York NY US |