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VQuad-HD (Objective perceptual multimedia video quality measurement of HDTV) is the next generation video quality testing technology for high definition video signals. VQuad-HD™ has been selected to form the new ITU-T video quality standard - known as J.341〔(【引用サイトリンク】title=ITU-T J.341, Objective perceptual multimedia video quality measurement of HDTV for digital cable television in the presence of a full reference )〕 - for high definition television video signals. The new VQuad-HD™ algorithm was developed by Swissqual in 2008-2010. It was the best performing model in the HDTV competition to find the new standard that was organized by the independent and non-commercial Video Quality Expert Group (VQEG). J.341 Recommendation provides a perceptual video quality measurement method for use in High-definition television (HDTV) non-interactive applications when the full reference (FR) measurement method can be used. The full reference measurement method can be used when the unimpaired reference video signal is readily available at the measurement point, as may be the case of measurements on individual equipment or a chain in the laboratory or in a closed environment such as a cable television head end. The estimation method includes both calibration and objective video quality estimations. It is generally accepted that the full reference (FR) method provides the best accuracy for perceptual picture quality measurements. The method has been proven to have the potential for high correlation with subjective assessments made in conformity with the ACR-HR methods specified in ITU-T P.910. == Applications scope == There are four major areas where this standard can have impact: # Potentially real-time, in-service quality monitoring at the source. # Remote destination quality monitoring when a copy of the source is available at the point of measurement. # Quality measurement for monitoring of a storage or transmission system that utilizes Video compression and decompression techniques, either a single pass or a concatenation of such techniques. # Lab testing of video systems. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「VQuad-HD」の詳細全文を読む スポンサード リンク
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