Subjective experience of image quality: attributes, definitions, and decision making of subjective image quality

Tuomas Leisti; Jenni Radun; Toni Virtanen; Raisa Halonen; Göte Nyman

doi:10.1117/12.807142

19 January 2009 Subjective experience of image quality: attributes, definitions, and decision making of subjective image quality

Tuomas Leisti, Jenni Radun, Toni Virtanen, Raisa Halonen, Göte Nyman

Author Affiliations +

Proceedings Volume 7242, Image Quality and System Performance VI; 72420D (2009) https://doi.org/10.1117/12.807142
Event: IS&T/SPIE Electronic Imaging, 2009, San Jose, California, United States

Abstract

Subjective quality rating does not reflect the properties of the image directly, but it is the outcome of a quality decision making process, which includes quantification of subjective quality experience. Such a rich subjective content is often ignored. We conducted two experiments (with 28 and 20 observers), in order to study the effect of paper grade on image quality experience of the ink-jet prints. Image quality experience was studied using a grouping task and a quality rating task. Both tasks included an interview, but in the latter task we examined the relations of different subjective attributes in this experience. We found out that the observers use an attribute hierarchy, where the high-level attributes are more experiential, general and abstract, while low-level attributes are more detailed and concrete. This may reflect the hierarchy of the human visual system. We also noticed that while the observers show variable subjective criteria for IQ, the reliability of average subjective estimates is high: when two different observer groups estimated the same images in the two experiments, correlations between the mean ratings were between .986 and .994, depending on the image content.

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Tuomas Leisti, Jenni Radun, Toni Virtanen, Raisa Halonen, and Göte Nyman "Subjective experience of image quality: attributes, definitions, and decision making of subjective image quality", Proc. SPIE 7242, Image Quality and System Performance VI, 72420D (19 January 2009); https://doi.org/10.1117/12.807142

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