发明名称 |
PICTURE CODING APPARATUS AND PICTURE DECODING APPARATUS |
摘要 |
Provide is an image decoding apparatus which reliably prevents deterioration of the image quality of decoded images which have been previously coded. An image decoding apparatus (200) includes: an inverse quantization and inverse orthogonal transform unit (220) and an adder (230) which decode a coded image included in a coded stream (Str) to generate a decoded image (Rc); an entropy decoding unit (210) which extracts cross-correlation data (p) which indicates a cross-correlation between the decoded image (Rc) and an image which corresponds to the decoded image and has not yet been coded; and an adaptive filter (240) which computes a filter parameter (w) based on the extracted cross-correlation data (p), and performs a filtering operation on the decoded image (Rc) according to the filter parameter (w). |
申请公布号 |
EP2001239(A2) |
申请公布日期 |
2008.12.10 |
申请号 |
EP20070739618 |
申请日期 |
2007.03.26 |
申请人 |
PANASONIC CORPORATION |
发明人 |
WITTMANN, STEFFEN;WEDI, THOMAS |
分类号 |
H04N19/50;H04N19/117;H04N19/14;H04N19/154;H04N19/172;H04N19/174;H04N19/176;H04N19/177;H04N19/46;H04N19/61;H04N19/82;H04N19/86 |
主分类号 |
H04N19/50 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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