发明名称 |
SYSTEMS AND METHODS FOR MEASURING LOSS OF DETAIL IN A VIDEO CODEC BLOCK |
摘要 |
Picture quality measurement systems and methods are provided for measuring DC blockiness within video blocks. Block boundaries are located within a test video frame. The relative AC differences within each block are measured using a reference video frame, a statistically estimated reference or a default value of the white video level divided by two. An objective DC blockiness map, a subjective DC blockiness map or both may be generated. |
申请公布号 |
WO2008124744(A2) |
申请公布日期 |
2008.10.16 |
申请号 |
WO2008US59691 |
申请日期 |
2008.04.09 |
申请人 |
TEKTRONIX, INC.;FERGUSON, KEVIN;LU, JIUHUAI |
发明人 |
FERGUSON, KEVIN;LU, JIUHUAI |
分类号 |
H04N7/50 |
主分类号 |
H04N7/50 |
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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