Television – Monitoring – testing – or measuring
Reexamination Certificate
2005-05-03
2005-05-03
Lee, Michael H. (Department: 2614)
Television
Monitoring, testing, or measuring
C348S606000, C348S625000, C382S266000, C382S286000
Reexamination Certificate
active
06888564
ABSTRACT:
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 and enclosing them with 8×8 pixel blocks. For each block, the sharpness according to the Kurtosis of the DCT is computed. 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.
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Caviedes Jorge E
Gurbuz Sabri
Goodman Edward W.
Koninklijke Philips Electronics , N.V.
Lee Michael H.
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