Developing a new psychophysical experimental method to estimate image quality

摘要

CIE TC1-27 "Specification of Colour Appearance for Reflective Media and Self-Luminous Display Comparisons" proposed guidelines for conducting psychophysical experiments for the evaluation of colorimetric and colour-appearance models". Accordingly, for the design and evaluation of digital imaging systems, it is of great importance to develop a methodology for subjective visual assessment, so that reliable and stable results can be derived with minimum observer stress. The paired comparison method is suitable especially when precise scalability is required and used widely for image quality assessment. However, a serious problem with the paired comparison method is that the number of samples to be examined must be relatively limited. As the number of the samples increases, the number of combinations becomes extensive. This causes excessive observer stress, which can affect the accuracy and repeatability of the results.