Practical issues in subjective video quality evaluation: human factors vs. psychophysical image quality evaluation

Authors:
Marc Sullivan;James Pratt;Philip Kortum
Affiliations:
AT&T Laboratories, Austin, TX, USA;AT&T Laboratories, Austin, TX, USA;Rice University, Houston, TX, USA
Venue:
Proceedings of the 1st international conference on Designing interactive user experiences for TV and video
Year:
2008

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Abstract

In this paper, we describe subjective video quality testing using naturally occurring, realistic, video content. The use of realistic content poses a number of challenges that are not encountered when using standard video test clips. The methods that we have developed are targeted to define levels of video quality that will be acceptable to customers of a video service. The methods were developed in the context of home TV viewing, but are applicable to other emerging areas such as mobile video. Some of the key elements of testing with natural content are controlling for natural content variability, measuring content desirability, and using a testing method that encourages natural viewing behaviors.