VIDEO QUALITY ASSESSING APPARATUS, VIDEO QUALITY ASSESSING METHOD, VIDEO QUALITY ASSESSING PROGRAM, VIDEO ALIGNING APPARATUS, VIDEO ALIGNING METHOD, AND VIDEO ALIGNING PROGRAM

摘要

A video quality assessing apparatus is described whichincludes a subjective quality estimation unit (11) forreceiving a reference video signal (RI) and a deterioratedvideo signal (PI), calculating a video signalcharacteristic amount of both signals, and estimating thesubjective quality of the deteriorated video signalaccording to the difference between the characteristicamounts of the two signals. A feature value calculatingunit (12) calculates a video signal feature value accordingto the reference video signal. A correction informationstorage unit (13) contains correction information forcorrecting the subjective quality. A correction calculationunit (14) acquires correction information corresponding tothe video signal feature value, from the correctioninformation storage unit (13) and passes it to a correctionunit (15). According to the correction informationreceived, the correction unit (15) corrects the subjectivequality of the deteriorated video signal estimated by thesubjective quality estimation unit (11).