Method for measuring and analyzing digital video quality
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United States of America Patent
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Jun 10, 2003
Grant Date -
Feb 13, 2003
app pub date -
Aug 1, 2001
filing date -
Aug 1, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and system for analyzing and measuring image quality between two images. A series of conversions and transformations of image information are preformed to produce a single measure of quality. A YCrCb frame sequence is first converted using RGB conversion to an RGB frame sequence. The resulting RGB frame sequence is converted using spherical coordinate transform (SCT) conversion to SCT images. A Gabor filter is applied to the SCT images to produce a Gabor Feature Set, and a statistics calculation is applied to the Gabor Feature Set. The resulting Gabor Feature Set statistics are produced for both the reference frame and the frame to be compared. Quality is computed for these Gabor Feature Set statistics to produce a video quality measure. Spectral decomposition of the frames is also performable for the Gabor Feature Set, rather than the statistics calculation, allowing graphical comparison of results for the compared frames.
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Cited Art Landscape
Patent Citation Ranking
- 29 Citation Count
- G06T Class
- 50 % this patent is cited more than
- 22 Age
