发明名称 |
Method and decoder for decoding an image frame of an image frame sequence |
摘要 |
The invention is related to a method for decoding an image frame of an image frame sequence and to a corresponding decoder. The method comprises the steps of reconstructing a representation of the image frame, classifying at least one block boundary as to be either high-freq or low-freq and filtering pixels of the at least one block boundary in dependency on the classification and outputting the filtered representation. Film grain noise and/or random texture are more likely to produce high-freq boundaries. Therefore, filtering boundary pixels in dependency on frequency classification helps preserving film grain noise and random texture which are of relevance for video quality at high bit rates. |
申请公布号 |
EP2048888(A1) |
申请公布日期 |
2009.04.15 |
申请号 |
EP20070301460 |
申请日期 |
2007.10.12 |
申请人 |
THOMSON LICENSING |
发明人 |
ZHANG, HUI;ZHU, LI HUA;YANG, JIHENG |
分类号 |
H04N7/26;H04N7/50 |
主分类号 |
H04N7/26 |
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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