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Selecting stimuli parameters for video quality studies based on perceptual similarity distances

(2015) Proceedings of SPIE. 9399. p.1-10
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Abstract
This work presents a methodology to optimize the selection of multiple parameter levels of an image acquisition, degradation, or post-processing process applied to stimuli intended to be used in a subjective image or video quality assessment (QA) study. It is known that processing parameters (e.g. compression bit-rate) or technical quality measures (e.g. peak signal-to-noise ratio, PSNR) are often non-linearly related to human quality judgment, and the model of either relationship may not be known in advance. Using these approaches to select parameter levels may lead to an inaccurate estimate of the relationship between the parameter and subjective quality judgments – the system’s quality model. To overcome this, we propose a method for modeling the relationship between parameter levels and perceived quality distances using a paired comparison parameter selection procedure in which subjects judge the perceived similarity in quality. Our goal is to enable the selection of evenly sampled parameter levels within the considered quality range for use in a subjective QA study. This approach is tested on two applications: (1) selection of compression levels for laparoscopic surgery video QA study, and (2) selection of dose levels for an interventional X-ray QA study. Subjective scores, obtained from the follow-up single stimulus QA experiments conducted with expert subjects who evaluated the selected bit-rates and dose levels, were roughly equidistant in the perceptual quality space - as intended. These results suggest that a similarity judgment task can help select parameter values corresponding to desired subjective quality levels.
Keywords
interventional x-ray, video compression, difference scaling, image similarity, multidimensional scaling, laparoscopy, subjective video quality assessment, IMAGE QUALITY

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MLA
Kumcu, Asli et al. “Selecting Stimuli Parameters for Video Quality Studies Based on Perceptual Similarity Distances.” Proceedings of SPIE. Ed. Karen O Egiazarian, Sos S Agaian, & Atanas P Gotchev. Vol. 9399. SPIE Press, 2015. 1–10. Print.
APA
Kumcu, A., Platisa, L., Chen, H., Gislason-Lee, A. J., Davies, A. G., Schelkens, P., Taeymans, Y., et al. (2015). Selecting stimuli parameters for video quality studies based on perceptual similarity distances. In K. O. Egiazarian, S. S. Agaian, & A. P. Gotchev (Eds.), Proceedings of SPIE (Vol. 9399, pp. 1–10). Presented at the Conference on Image Processing - Algorithms and Systems XIII, SPIE Press.
Chicago author-date
Kumcu, Asli, Ljiljana Platisa, Heng Chen, Amber J Gislason-Lee, Andrew G Davies, Peter Schelkens, Yvo Taeymans, and Wilfried Philips. 2015. “Selecting Stimuli Parameters for Video Quality Studies Based on Perceptual Similarity Distances.” In Proceedings of SPIE, ed. Karen O Egiazarian, Sos S Agaian, and Atanas P Gotchev, 9399:1–10. SPIE Press.
Chicago author-date (all authors)
Kumcu, Asli, Ljiljana Platisa, Heng Chen, Amber J Gislason-Lee, Andrew G Davies, Peter Schelkens, Yvo Taeymans, and Wilfried Philips. 2015. “Selecting Stimuli Parameters for Video Quality Studies Based on Perceptual Similarity Distances.” In Proceedings of SPIE, ed. Karen O Egiazarian, Sos S Agaian, and Atanas P Gotchev, 9399:1–10. SPIE Press.
Vancouver
1.
Kumcu A, Platisa L, Chen H, Gislason-Lee AJ, Davies AG, Schelkens P, et al. Selecting stimuli parameters for video quality studies based on perceptual similarity distances. In: Egiazarian KO, Agaian SS, Gotchev AP, editors. Proceedings of SPIE. SPIE Press; 2015. p. 1–10.
IEEE
[1]
A. Kumcu et al., “Selecting stimuli parameters for video quality studies based on perceptual similarity distances,” in Proceedings of SPIE, San Francisco, CA, USA, 2015, vol. 9399, pp. 1–10.
@inproceedings{5914271,
  abstract     = {This work presents a methodology to optimize the selection of multiple parameter levels of an image acquisition, degradation, or post-processing process applied to stimuli intended to be used in a subjective image or video quality assessment (QA) study. It is known that processing parameters (e.g. compression bit-rate) or technical quality measures (e.g. peak signal-to-noise ratio, PSNR) are often non-linearly related to human quality judgment, and the model of either relationship may not be known in advance. Using these approaches to select parameter levels may lead to an inaccurate estimate of the relationship between the parameter and subjective quality judgments – the system’s quality model. To overcome this, we propose a method for modeling the relationship between parameter levels and perceived quality distances using a paired comparison parameter selection procedure in which subjects judge the perceived similarity in quality. Our goal is to enable the selection of evenly sampled parameter levels within the considered quality range for use in a subjective QA study. This approach is tested on two applications: (1) selection of compression levels for laparoscopic surgery video QA study, and (2) selection of dose levels for an interventional X-ray QA study. Subjective scores, obtained from the follow-up single stimulus QA experiments conducted with expert subjects who evaluated the selected bit-rates and dose levels, were roughly equidistant in the perceptual quality space - as intended. These results suggest that a similarity judgment task can help select parameter values corresponding to desired subjective quality levels.},
  articleno    = {93990F},
  author       = {Kumcu, Asli and Platisa, Ljiljana and Chen, Heng and Gislason-Lee, Amber J and Davies, Andrew G and Schelkens, Peter  and Taeymans, Yvo and Philips, Wilfried},
  booktitle    = {Proceedings of SPIE},
  editor       = {Egiazarian, Karen O and Agaian, Sos S and Gotchev, Atanas P},
  isbn         = {9781628414899},
  issn         = {0277-786X},
  keywords     = {interventional x-ray,video compression,difference scaling,image similarity,multidimensional scaling,laparoscopy,subjective video quality assessment,IMAGE QUALITY},
  language     = {eng},
  location     = {San Francisco, CA, USA},
  pages        = {93990F:1--93990F:10},
  publisher    = {SPIE Press},
  title        = {Selecting stimuli parameters for video quality studies based on perceptual similarity distances},
  url          = {http://dx.doi.org/10.1117/12.2083431},
  volume       = {9399},
  year         = {2015},
}

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