Patent ID: 8488915
Filing Date: 2013-07-16
Classification: G06T,H04N

Abstract:
1. A method for measuring video artifacts in processed video, comprising: calculating, by a computer processor, a reference signal of the processed video according to at least one frame of the processed video, for a spatial-temporal coherence analysis; executing, by the computer processor, a blockiness metric based on a blockiness comparison function between the processed video and the reference signal to detect compression artifacts; executing, by the computer processor, a streakiness metric based on a streakiness comparison function between the processed video and the reference signal to detect network artifacts; executing, by the computer processor, a blurriness metric based on a blurriness comparison function between the processed video and the reference signal to detect compression artifacts; and generating, by the computer processor, a measurement of the video artifacts based on the execution of at least one of the metrics on the processed video, wherein the execution of at least one of the metrics on the processed video comprises computing a mean difference of autocorrelation plots of corresponding portions of a current received signal and the reference signal of the processed video.