发明名称 |
BLOCK ARTIFACTS DETECTION |
摘要 |
A block artifacts detection device (100) for detecting block artifacts in a video signal is disclosed. The block artifacts detection device (100) comprises: computing means (102) for computing a gradient signal on basis of the video signal; establishing means (104) for establishing a list of samples corresponding to respective local maximum values of the gradient signal; a histogram determining means (106) for determining a histogram of inter-sample distances, a first one of the inter-sample distances corresponding to a first distance between a first one of the samples and a second one of the samples succeeding the first one of the samples, and a second one of the inter-sample distances corresponding to a second distance between the first one of the samples and a third one of the samples succeeding the second one of the samples; and analyzing means (108) for analyzing the histogram of inter-sample distances and for producing a block artifact indicator on basis of the histogram. |
申请公布号 |
KR20060058703(A) |
申请公布日期 |
2006.05.30 |
申请号 |
KR20067002489 |
申请日期 |
2006.02.06 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
DOMMISSE ARDJAN;HOFMAN PAUL M. |
分类号 |
G06T5/40;G06T5/20;G06T5/50;G06T7/00;H04N7/24;H04N7/26;H04N7/50 |
主分类号 |
G06T5/40 |
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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