Picture Quality Assessment: A Comparison of Ratio and Ordinal Scales

Two picture quality experiments were conducted using ratio and ordinal scaling methods. The ratio scales were generated by magnitude estimation and the ordinal scales were rank-ordered category scales. The purpose was to compare the methods to see if one method would outperform the other. Two stimulus ranges were employed on otherwise equivalent stimulus material and observers. The ratio-scale results showed much smaller context effects and have the additional virtue of providing meaningful ratios and intervals in the numerical responses.

Print ISSN

0036-1682

Published

1985-12

Content type

Original Research

DOI

10.5594/J03315