Analysis of Public Image and Video Databases for Quality Assessment

Winkler, Stefan

doi:10.1109/jstsp.2012.2215007

Cited by 264 publications

(195 citation statements)

References 26 publications

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“…Moreover, the results of many studies have been made accessible to other researchers as public VQA databases [6].…”

Section: A Subjective Vqa Methodsmentioning

confidence: 99%

“…The difference scores for the ECVQ and EVVQ databases were computed as in (5) and could take values between 0 to 100, with 100 being the highest quality [23]. As opposed, the difference scores for the LIVE Mobile database were computed as in (6) and could range between 0 and 5, with 0 being the highest quality [24].…”

Section: A Vqa Databasesmentioning

confidence: 99%

“…This paper addresses the issue by proposing a methodology for mapping the values of objective VQA metrics to subjective MOS scores. The methodology builds on previous research works in the area, and makes use of data from public VQA databases [6]. The quality estimation performance of six different full-reference objective VQA metrics was evaluated on three different databases, and the proposed methodology was exemplified and evaluated for the best performing metric.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A novel methodology for mapping objective video quality metrics to the subjective MOS scale

Moldovan

Ghergulescu

Muntean

2014

2014 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting

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Abstract-With the rapid growth in video-based services, and as users are becoming increasingly quality-aware, the reliable estimation of video quality has become extremely important. While a multitude of objective Video Quality Assessment (VQA) metrics with various performance and complexity have been proposed, the nonlinearity of video quality and the lack of clear interpretations of the metrics make difficult to understand how the objective metric values reflect the video quality as perceived subjectively in terms of Mean Opinion Scores (MOS). This paper proposes and evaluates a methodology for mapping objective VQA metric values to subjective MOS scores based on publicly available VQA databases. Three different databases were used for comparing the performance of various objective metrics and evaluating the proposed methodology.Index Terms-Video quality assessment (VQA), mean opinion score (MOS), subjective methods, objective metrics, video quality mapping, performance evaluation, public video quality databases.

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“…Moreover, the results of many studies have been made accessible to other researchers as public VQA databases [6].…”

Section: A Subjective Vqa Methodsmentioning

confidence: 99%

Section: A Vqa Databasesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A novel methodology for mapping objective video quality metrics to the subjective MOS scale

Moldovan

Ghergulescu

Muntean

2014

2014 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting

View full text Add to dashboard Cite

show abstract

“…This behavior is due to the finite range of the scale and can been observed in virtually all subjective experiments [8]. The influence of absolute quality on SD needs to be removed in order to perform hypothesis testing and compute useful summary statistics.…”

Section: Sd Normalizationmentioning

confidence: 99%

“…For example, the importance of using non-parametric statistics for modeling user ratings was highlighted in [1,3]. We previously analyzed the effects of rating scales on MOS standard deviations [7] and studied MOS uniformity and variability across databases in [8].…”

Section: Introductionmentioning

confidence: 99%