METHOD OF GENERATING PREDICTION OF SUBJECTIVE PICTURE QUALITY, METHOD OF MEASURING LOCAL IMPAIRMENT, VIDEO MEASURING DEVICE AND LOCAL IMPAIRMENT MEASURER

摘要

PROBLEM TO BE SOLVED: To generate a picture-quality rating prediction such as a Mean Opinion Score (MOS) of a video signal under a test without using a reference video signal.;SOLUTION: Instead of using the reference video signal, a pseudo reference signal is generated from a measured result of a plurality of local impairments of the video signal under the test. The plurality of the local impairments are then accumulated to create a difference image. The difference image is then subtracted from the video signal under the test to create a pseudo reference video signal. The video signal under the test is compared to the pseudo reference video signal to generate picture-quality prediction rating. In some cases, the local impairments may be measured by separating high frequency noise from the video signal under the test. Once separated, the noise is then measured and a bandwidth is compensated, to generate a measured value of the local impairments.;COPYRIGHT: (C)2012,JPO&INPIT