Journal ArticleDOI
A new standardized method for objectively measuring video quality
M.H. Pinson,S. Wolf +1 more
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TLDR
The independent test results from the VQEG FR-TV Phase II tests are summarized, as well as results from eleven other subjective data sets that were used to develop the NTIA General Model.Abstract:
The National Telecommunications and Information Administration (NTIA) General Model for estimating video quality and its associated calibration techniques were independently evaluated by the Video Quality Experts Group (VQEG) in their Phase II Full Reference Television (FR-TV) test. The NTIA General Model was the only video quality estimator that was in the top performing group for both the 525-line and 625-line video tests. As a result, the American National Standards Institute (ANSI) adopted the NTIA General Model and its associated calibration techniques as a North American Standard in 2003. The International Telecommunication Union (ITU) has also included the NTIA General Model as a normative method in two Draft Recommendations. This paper presents a description of the NTIA General Model and its associated calibration techniques. The independent test results from the VQEG FR-TV Phase II tests are summarized, as well as results from eleven other subjective data sets that were used to develop the method.read more
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Proceedings ArticleDOI
Towards Model-based Transrating of H.264 coded video
Naama Hait,David Malah +1 more
TL;DR: The developed models are suitable for requantization and are matched to the context-adaptive entropy coding used in H.264 and achieves up to 1[dB] gain in PSNR, as compared to a simple one-pass algorithm.
Proceedings ArticleDOI
Video quality metric model of MSE for backlight power saving
Xin-Cheng Li,Po-Yi Wu,Ting-Lan Lin,Chien-Hsun Chiang,Shih-Lun Chen,Wen-Che Tsai,Chuan-Jia Wang +6 more
TL;DR: This work proposes to use a well-known video quality metric called VQM (Video Quality Metric) to measure the video quality, and proposed a V QM curve to be predicted by the MSE (Mean Square Error), which can later be used to efficiently maintain the videoquality while performing the backlight power saving.
Dissertation
Quality Queue Management for Future Wireless Networks
TL;DR: A novel metric, the expected Quality of Service (eQoS), that estimates QoE on future wireless networks using combinatorics and a theoretical model to capture the probability of successful and unsuccessful channel access on a future wireless network are introduced.
Posted Content
FOVQA: Blind Foveated Video Quality Assessment.
TL;DR: In this article, a no-reference (NR) foveated video quality assessment model, called FOVQA, is proposed, which is based on new models of space-variant natural scene statistics and natural video statistics.
Journal ArticleDOI
Fast and Accurate Video PQoS Estimation over Wireless Networks
Pasquale Pace,Emanuele Viterbo +1 more
TL;DR: This paper proposes a curve fitting technique for fast and accurate estimation of the perceived quality of streaming media contents, delivered within a wireless network, and can estimate in real time the video PQoS and rapidly adapt the content transmission through scalable video coding and bit rates in order to offer the best perceived quality to the end users.
References
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DVQ: A digital video quality metric based on human vision
TL;DR: The Digital Video Quality (DVQ) metric as discussed by the authors is based on the Discrete Cosine Transform (DCT) and incorporates aspects of early visual processing, including light adaptation, luminance and chromatic channels, spatial and temporal filtering, spatial frequency channels, contrast masking, and probability summation.
Journal ArticleDOI
Digital video quality metric based on human vision
TL;DR: A new digital video quality metric, which is based on the discrete cosine transform, which incorporates aspects of early visual pro- cessing, including light adaptation, luminance, and chromatic chan- nels; spatial and temporal filtering; spatial frequency channels; con- trast masking; and probability summation.
Video Quality Measurement Techniques
TL;DR: The goal of this report is to provide a complete description of the ITS video quality metric (VQM) algorithms and techniques, which provide close approximations to the overall quality impressions, or mean opinion scores, of digital video impairments that have been graded by panels of viewers.
Journal ArticleDOI
A basic multimedia quality model
TL;DR: The results of these studies found that human subjects integrate audio and video quality together using a multiplicative rule.
Journal ArticleDOI
PVQM – A perceptual video quality measure
Andries Pieter Hekstra,John G. Beerends,D. Ledermann,F. E. de Caluwe,S. Kohler,Robert Hendrik Koenen,S. Rihs,M. Ehrsam,D. Schlauss +8 more
TL;DR: A perceptual video quality system is proposed, that uses a linear combination of three indicators, the “edginess” of the luminance, the normalized color error and the temporal decorrelation, that showed the highest variance weighted regression overall correlation of all models.