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Introduction

A simple MATLAB interface which allows to perform subjective evaluation tests using Stimulus Comparison Adjectival Categorical Judgment (SCACJ) method [1]. In this method, two stimuli (e.g., images or videos) are shown side by side and then the subject gives a score between +1 (slightly better) and +3 (much better) to the most pleasant image, or a score of 0 in case of similar quality. After, the subjective scores are normalized in the range [0,10]. Refer to [2] for more details.

Dependences

  • Matlab with version > R2015

Usage

Run subTestForm.m for a demo

References

[1] ITU-R Recommendation BT.500-13, “Methodology for the Subjective Assessment of the Quality of Television Pictures,” ITU, Geneva, Switzerland, Jan. 2012.
[2] F. Jabar, J. Ascenso, and M.P. Queluz, “Objective Assessment of Perceived Geometric Distortions in Viewport Rendering of 360⸰ Images”, IEEE J. Sel. Top. Signal Process., vol. 14, no. 1, pp. 49-63, Jan. 2020

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