Results 141 to 150 of about 385,974 (183)

Subjective video quality evaluation for multimedia applications

SPIE Proceedings, 2006
Video quality can be measured using both subjective and objective assessment methods. Subjective experiments are crucially important as they constitute a benchmark for evaluating the performance of objective quality metrics. Subjective quality assessment of television pictures has received extensive attention from experts over the past decades. On the
Quan Huynh-Thu, Mohammed Ghanbari, David Hands, Matthew D. Brotherton   +3 more
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Subjective video quality comparison of HDTV monitors

SPIE Proceedings, 2009
HDTV broadcasting services have become widely available. Furthermore, in the upcoming IPTV services, HDTV services are important and quality monitoring becomes an issue, particularly in IPTV services. Consequently, there have been great efforts to develop video quality measurement methods for HDTV.
G. Seo, C. Lim, S. Lee, C. Lee
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Subjective quality factors in packet 3D video

2011 Third International Workshop on Quality of Multimedia Experience, 2011
This paper presents an experimental study on subjective quality of 3D video under packet loss conditions. A priority network is assumed, such that the base view of a stereoscopic video stream is delivered through a guaranteed channel and the auxiliary view is subject to packet losses over a low priority channel.
L. Pinto, J. Carreira, S. Faria, N. Rodrigues, P. Assuncao   +4 more
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Subjective quality assessment of compressed 3D video

2014 7th International Congress on Image and Signal Processing, 2014
Since 3D video has the potential to provide stronger immersive perception, evaluating the quality of 3D video becomes an important subject. This paper mainly studies the subjective quality assessment of 3D video of two views compressed by the state-of-the-art standard H.264/MVC in 3DTV system. Our goal is to obtain available opinion scores which can be
Tian Tian, Xiuhua Jiang, Xiangkun Du
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Subjective-quality-based MPEG-2 video compression

Proceedings. International Conference on Information Technology: Coding and Computing, 2005
Traditional MPEG-2 video compression uses test model 5 (TM5) as the rate-control algorithm, which does not consider the perceptual quality of the compressed sequence. This paper proposes a new rate-control algorithm, which integrates TM5 with the Watson's digital-video-quality (DVQ) metric.
C.-Y. Pai, W.E. Lynch
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Subjective Testing of Broadcast-Quality Compressed Video

SMPTE Journal, 1994
This paper describes the analysis and subjective testing of broadcast-quality compressed video conducted by the Public Broadcasting Service (PBS) and the Communications Research Centre's (CRC's) Advanced Television Evaluation Laboratory (ATEL). To fulfill the program objectives, a novel approach to test preparation and conduct was adopted.
W. Y. Zou, K. Ellsworth, J. A. Kutzner, P. J. Hearty   +3 more
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Active Sampling for Subjective Video Quality Assessment

2018 IEEE Fourth International Conference on Multimedia Big Data (BigMM), 2018
This paper presents an active sampling framework to achieve economic and robust subjective Video Quality Assessment (VQA). To overcome the main drawback of paired comparison that the number of pairs grows exponentially with the number of videos under test, the proposed methodology does not require the participants to perform the complete comparison of ...
Yangbangyan Jiang, Qianqian Xu, Weigang Zhang, Qingming Huang   +3 more
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Crowdsourced Subjective Video Quality Assessment

2014
This paper describes a crowdsourced subjective video quality method which evaluates various degradation types including wireless packet losses, transmission errors and compression artefacts. In recent times crowdsourcing gained a lot of momentum in various fields.
Dumić, Emil, Grgić, Sonja
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Subjective and Objective Quality Assessment of Colonoscopy Videos

IEEE Transactions on Medical Imaging
Captured colonoscopy videos usually suffer from multiple real-world distortions, such as motion blur, low brightness, abnormal exposure, and object occlusion, which impede visual interpretation. However, existing works mainly investigate the impacts of synthesized distortions, which differ from real-world distortions greatly.
Guanghui Yue, Lixin Zhang, Jingfeng Du, Tianwei Zhou, Wei Zhou, Weisi Lin   +5 more
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Practical issues in subjective video quality evaluation

Proceedings of the 1st international conference on Designing interactive user experiences for TV and video, 2008
In this paper, we describe subjective video quality testing using naturally occurring, realistic, video content. The use of realistic content poses a number of challenges that are not encountered when using standard video test clips. The methods that we have developed are targeted to define levels of video quality that will be acceptable to customers ...
Marc Sullivan, James Pratt, Philip Kortum   +2 more
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