[Download Dataset (including experimental study results, 195MB zip file)]
[Browse Dataset]
| Sample size (number of subjective responses): | 2 x 28 |
| Number of images: | 27 |
| Angular resolution: | restricted by a chinrest to 60 ppd |
| Types of distortion: | 12 |
| Strength of distortions: | near- and supra-threshold |
| Distortion distribution: | uniform and manually blended |
| Observers: | both experts and naive |
| Repetition: | 21 out of total 35 observers completed no-reference followed by with-reference set |
[Download Dataset (including experimental study results, 113MB zip file)]
[Browse Dataset]
| Sample size (number of subjective responses): | 2 x 10 |
| Number of images: | 10 |
| Angular resolution: | unrestricted, 30 ppd (pixels per one visual degree) on average |
| Types of distortion: | 3 |
| Strength of distortions: | supra-threshold |
| Distortion distribution: | uniform |
| Observers: | mostly experts |
| Repetition: | no repetitions |