A calibration method for continuous video quality (SSCQE) measurements

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• 作者：Aldridge ; Richard ; Pearson ; Don
• 关键词：Video quality ; MPEG quality variations ; SSCQE ; ITU-R Recommendation BT.500
• 刊名：Signal Processing: Image Communication
• 出版年：2000
• 出版时间：October, 2000
• 年：2000
• 卷：16
• 期：3
• 页码：321-332
• 全文大小：319 K

文摘

It is shown that single stimulus continuous quality evaluation (SSCQE) measurements can be calibrated against a standard reference, even though they relate to long video sequences of up to 25min duration. This can be accomplished by projecting chosen percentiles in the histogram of continuous quality judgements onto the SSCQE graph, so identifying appropriate representative sections for use in DSCQS tests. Three different algorithms were tested for detailed selection of the 10s sections, with a modal quality criterion giving the best results. Calibration using both linear and non-linear mapping between SSCQE and MDS scores has been satisfactorily accomplished.