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A METHOD AND SYSTEM FOR ESTIMATING SHARPNESS METRICS BASED ON LOCAL EDGE STATISTICAL DISTRIBUTION
A METHOD AND SYSTEM FOR ESTIMATING SHARPNESS METRICS BASED ON LOCAL EDGE STATISTICAL DISTRIBUTION
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机译:基于局部边缘统计分布的清晰度度量方法和系统
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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.
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