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Comparison of subjective evaluation methods using impairments units [TV picture quality]

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1 Author(s)
Narita, N. ; NHK Broadcast Eng. Dept., Network Oper.s Center, Tokyo, Japan

This article discusses the method to calculate an objective measure of picture distortions. When the normalized mean score for a reference sequence is smaller than 1.0, the conventional method is inapplicable in calculating impairment units (hereinafter referred to as imps). We propose a new method to calculate imps in sensation domain along with a verification of its validity. The imps obtained in such a way make it possible to compare the results with a large different distribution of scores directly, for example the results obtained from the DSCQS method with those from the SSQS method.

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Broadcasting, IEEE Transactions on  (Volume:50 ,  Issue: 2 )