Method of predicting perceptual differences between memory and directly viewed colors in video
AssigneeTektronix, Inc.
InventorKEVIN M. FERGUSON
Life of this patent
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Abstract
Disclosed is a processor for predicting perceptual differences between colors recalled from memory and directly viewed colors in a tested video. The processor includes a memory effects processor structured to generate compensation factors for distortions of color due to memory effects and apply the compensation factors to data from the reference video or data from the tested video. The compensation factors may include factors for changes in saturation over time, changes in hue angle, changes in uncertainty, and a categorization factor that reflects a trend in shifts and towards cardinal color centroids over time in memory.
Claims20
A processor for predicting perceptual differences between colors recalled from memory and directly viewed colors in a tested video, comprising:
- an input for accepting a reference video and the tested video;
- a memory effects processor structured to generate a compensation factor for distortions of color due to memory effects and apply the compensation factor to data from the reference video or data from the tested video;
- and
- an output structured to deliver a set of perceptual difference measurements.
A system for predicting perceptual differences between a test and a reference video, comprising:
- an input for receiving the test and reference video;
- a display modeler for both the test and the reference video;
- a view modeler for both the test and the reference video;
- a perceptual modeler for both the test and the reference video that generates a perceptual response for the test video and a perceptual response for the reference video;
- and
- a perceptual difference prediction calculator having inputs for the perceptual response for the test video and the perceptual response for the reference video, and including a memory effects processor structured to generate a compensation factor for distortions of color due to memory effects and apply the compensation factor to the perceptual response for the test video or the perceptual response for the reference video.
A method in a processor for predicting perceptual differences between colors recalled from memory and directly viewed colors in a tested video, the method comprising:
- accepting a reference video and the tested video;
- generating a compensation factor in a color memory effects processor for distortions of color due to memory effects;
- applying the compensation factor to the data describing the reference video or to data describing the test video;
- and
- outputting a set of perceptual difference measurements.
Dependencies are inferred from the claim text.