SummaryRecommendation ITU-T J.343.3 provides hybrid reduced-reference encrypted (Hybrid-RRe) objective perceptual video quality measurement methods for HDTV and multimedia when a reduced reference signal and encrypted bitstream data are available. The following are example applications that can use this Recommendation: • potentially real-time, in-service quality monitoring at the headend; • video television streams over cable/IPTV networks including those transmitted over the Internet using Internet protocol; • video quality monitoring at the receiver when a reduced reference signal and encrypted bitstream data are available; • video quality monitoring at measurement nodes located between point of transmission and point of reception when a reduced reference signal and encrypted bitstream data are available; • quality measurement for monitoring of a transmission system that utilizes video compression and decompression techniques, either a single pass or a concatenation of such techniques; • lab testing of video transmission systems. This Recommendation includes an electronic attachment containing test vectors, including video sequences, bitstream files and predicted objective model scores.
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