The effect of content desirability on subjective video quality ratings

Human Factors
Philip Kortum, Marc Sullivan

Abstract

The purpose of this study was to examine the impact of the desirability of content on viewers' ratings of subjective video quality. Most subjective video quality studies use short-duration clips that are specially designed to exercise the encoding algorithms and do not consider the desirability of the content as a variable. In four studies, we employed a total of 100 participants and 180 movie clips encoded at nine levels from 550 kbps up to DVD quality. Participants viewed clips that were 2 min in length and then were asked about video quality of the clips and desirability of the movie content. The results of these studies show that there is a strong correlation between the desirability of movie content and subjective ratings of video quality. This strong relationship holds across a wide range of encoding levels and movie content when that content is viewed under longer, more naturalistic viewing conditions. The effects of content should be considered when evaluating the subjective quality of encoded video content, as these effects can be as large as those seen between low- and high-quality encodings. Researchers and practitioners trying to determine acceptable levels of video quality for actual consumption by consumers may fi...Continue Reading

References

Mar 13, 1999·Annual Review of Psychology·J M Henderson, A Hollingworth

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Citations

Oct 11, 2013·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Prem Nandhini SatgunamEli Peli
Jul 11, 2014·PloS One·Scott L FairhallDavid Melcher
Dec 4, 2012·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Ian van der Linde, Rachel M Doe

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