Results 151 to 160 of about 385,974 (183)

Screen Content Video Quality Assessment: Subjective and Objective Study

IEEE Transactions on Image Processing, 2020
In this paper, we make the first attempt to study the subjective and objective quality assessment for the screen content videos (SCVs). For that, we construct the first large-scale video quality assessment (VQA) database specifically for the SCVs, called the screen content video database (SCVD). This SCVD provides 16 reference SCVs, 800 distorted SCVs,
Shan Cheng, Huanqiang Zeng, Jing Chen, Junhui Hou, Jianqing Zhu, Kai-Kuang Ma   +5 more
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Subjective video quality assessments for 4K UHDTV

2017 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB), 2017
There is no ITU recommendation concerning subjective tests for video quality assessment in UHD resolution. A clear methodology needs to be established. In this paper we present a subjective quality assessment test of HEVC/H.265 compressed 4K Ultra-High-Definition (UHD) videos in a laboratory viewing environment.
Sotelo, Rafael, Joskowicz, Jose, Anedda, Matteo, Murroni, Maurizio, Giusto, Daniele D.   +4 more
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Subjective quality assessment of mobile 3D videos

2014 Sixth International Workshop on Quality of Multimedia Experience (QoMEX), 2014
With the development of mobile network and 3D display technology, watching 3D videos on portable devices through mobile network is to be a trend. In this paper, we study the influence of Quantization Parameters (QP), resolution and packet loss on the QoE of mobile 3D videos.
null Zhiwei Fan, null Tingting Jiang
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Adaptive video transmission with subjective quality constraints

2014 IEEE International Conference on Image Processing (ICIP), 2014
We conducted a subjective study wherein we found that viewers' Quality of Experience (QoE) was strongly correlated with the empirical cumulative distribution function (eCDF) of the predicted video quality. Based on this observation, we propose a rate-adaptation algorithm that can incorporate QoE constraints on the empirical cumulative quality ...
Chao Chen, Xiaoqing Zhu, Gustavo de Veciana, Alan C. Bovik, Robert W. Heath   +4 more
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New Tendencies in Subjective Video Quality Evaluation

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2006
This paper provides an overview of the new tendencies in the subjective assessment of the quality of video for Multimedia applications. New subjective assessment methods are here described together with the description of the new general approaches. Some motivations of these new approaches are also here provided.
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Subjective video quality comparison using various displays

Optical Engineering, 2009
Objective video quality measurement has become an important issue, as multimedia services are now widely available over the Internet and other wireless communication media. Traditionally, professional CRT monitors have been used to measure subjective video quality.
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Study of Temporal Effects on Subjective Video Quality of Experience

IEEE Transactions on Image Processing, 2017
HTTP adaptive streaming is being increasingly deployed by network content providers, such as Netflix and YouTube. By dividing video content into data chunks encoded at different bitrates, a client is able to request the appropriate bitrate for the segment to be played next based on the estimated network conditions.
Christos George Bampis, Zhi Li, Anush Krishna Moorthy, Ioannis Katsavounidis, Anne Aaron, Alan Conrad Bovik   +5 more
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Study of Subjective Quality and Objective Blind Quality Prediction of Stereoscopic Videos

IEEE Transactions on Image Processing, 2019
We present a new subjective and objective study on full high-definition (HD) stereoscopic (3D or S3D) video quality. In subjective study, we constructed an S3D video dataset with 12 pristine and 288 test videos, and the test videos are generated by applying the H.264 and H.265 compression, blur and frame freeze artifacts. We also propose a no reference
Balasubramanyam Appina, Sathya Veera Reddy Dendi, K. Manasa, Sumohana S. Channappayya, Alan C. Bovik   +4 more
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Assessment of subjective video quality on 4K Ultra High Definition videos

2015 8th International Congress on Image and Signal Processing (CISP), 2015
With the wide spread use of digital video, video quality assessment has become a hot research. In this paper, a subjective video quality assessment on 4K Ultra-High Definition (UHD) videos was presented in detail. We described the source sequences which were chosen and the preparation of the impaired test sequences.
Jiangbo Xu, Xiuhua Jiang
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Subjective video quality assessment for adaptive quality-of-service control

IEEE International Conference on Multimedia and Expo, 2001. ICME 2001., 2001
A real-time MPEG-4 video transmission system is used to conduct subjective video quality measurements. In the measurements, three video QoS (Quality of Service) parameters, that is, the frame size, frame rate, and quantization scale change, then the double stimulus continuous quality scale method is used to obtain the subjective test scores from the ...
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