发明名称 |
A METHOD AND SYSTEM FOR ESTIMATING SHARPNESS METRICS BASED ON LOCAL EDGE STATISTICAL DISTRIBUTION |
摘要 |
The present invention relates to a method and system for evaluating the quality of video data without gaining access to the source data. The system is configured to estimate sharpness metrics by detecting edge pixels (14) and enclosing them with 8 x 8 pixel blocks. For each block, the sharpness according to the Kurtosis of the DCT is computed (16). The final metric is the average sharpness of the blocks in the edge profile and includes a robust combination of spatial and frequency domain information. |
申请公布号 |
WO03101120(A1) |
申请公布日期 |
2003.12.04 |
申请号 |
WO2003IB01842 |
申请日期 |
2003.04.25 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
CAVIEDES, JORGE, E.;GURBUZ, SABRI |
分类号 |
G06T7/00;H04N7/26;H04N17/00 |
主分类号 |
G06T7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|