ITU-T J.144 SPANISH-2004
全基准信号时,数字有线电视的客观感知视频质量测量技术.9号研究组

Objective perceptual video quality measurement techniques for digital cable television in the presence of a full reference


 

 

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标准号
ITU-T J.144 SPANISH-2004
发布日期
2004年03月01日
实施日期
废止日期
中国标准分类号
M60
发布单位
IX-ITU
适用范围
This Recommendation provides guidelines on the selection of appropriate perceptual video quality measurement equipment for use in digital cable television applications when the full reference 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 methods are based on processing 8-bit digital component video as defined by ITU-R Rec. BT.601-51. The encoder can utilize various compression methods (e.g., MPEG, H.263, etc.). The models proposed in this Recommendation may be used to evaluate a codec (encoder/decoder combination) or a concatenation of various compression methods and memory storage devices. While the derivation of the objective quality estimators described in this Recommendation might have considered error impairments (e.g., bit errors, dropped packets), independent testing results are not currently available to validate the use of the estimators for systems with error impairments. The validation test material did not contain channel errors. It contained coding degradations and the compression rates were 768 kbit/s-5 Mbit/s.




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