Results 251 to 260 of about 1,678,036 (292)
Some of the next articles are maybe not open access.
2014
Abstract Measuring video quality is one of the most critical and yet challenging tasks for video processing applications. It enables the assessment of video quality off-line, providing a basis for validation and comparison of codec performance, and it also facilitates rate-quality optimization within the coding loop for on-line compression ...
Fan Zhang, David R. Bull
openaire +1 more source
Abstract Measuring video quality is one of the most critical and yet challenging tasks for video processing applications. It enables the assessment of video quality off-line, providing a basis for validation and comparison of codec performance, and it also facilitates rate-quality optimization within the coding loop for on-line compression ...
Fan Zhang, David R. Bull
openaire +1 more source
The difference between perceived video quality and objective video quality
Journal of Visualization, 2009We select 93 video sequences encoded/decoded by Microsoft MPEG-4 software to classify them into six different content characteristics by the cluster analysis and the discriminant analysis in this study. We compare the peak signal noise ratio (PSNR) of objective video quality evaluation with the mean opinion score of subjective quality evaluation to ...
Huey-Min Sun, Yan-Kai Huang
openaire +1 more source
Subjective video quality prediction based on objective video quality metrics
2018 4th Iranian Conference on Signal Processing and Intelligent Systems (ICSPIS), 2018This A method is proposed for the generation of a set of video sequence with a predictive subjective video quality (Mean Opinion Score) based on a limited number of sequences and the associated objective video quality measure (Peak Signal-to-Noise Ratio). The MOS is predicted using a sigmoid function model that is optimized based on a limited number of
M. Alizadeh, M. Sharifkhani
openaire +1 more source
Quality analysis for 3D video using 2D video quality models
IEEE Transactions on Consumer Electronics, 2008The 3D (3-dimensional) video technologies are emerging to provide more immersive media content compared to conventional 2D (2-dimensional) video applications. More often 3D video quality is measured using rigorous and time-consuming subjective evaluation test campaigns.
Yasakethu, SLP +3 more
openaire +2 more sources
Video Quality Analysis for Concert Video Mashup Generation
2010Videos recorded by the audience in a concert provide natural and lively views from different angles. However, such recordings are generally incomplete and suffer from low signal quality due to poor lighting conditions and use of hand-held cameras. It is our objective to create an enriched video stream by combining high-quality segments from multiple ...
Shrestha, P. +3 more
openaire +2 more sources
2014
This chapter presents two parametric video quality models: one model suitable for network planning, the other model applicable for quality monitoring and encrypted data. The network planning model is an extension of the model presented in Garcia and Raake (2010).
openaire +1 more source
This chapter presents two parametric video quality models: one model suitable for network planning, the other model applicable for quality monitoring and encrypted data. The network planning model is an extension of the model presented in Garcia and Raake (2010).
openaire +1 more source
Video quality ruler: A new experimental methodology for assessing video quality
2015 Seventh International Workshop on Quality of Multimedia Experience (QoMEX), 2015In this paper, we propose a subjective video quality assessment method called video quality ruler (VQR) that can be employed to determine the perceived quality of video sequences. The described method is an extension of the ISO 20462, which is a method to assess image quality. The VQR method provides an interface with a set of pictures.
Pedro Garcia Freitas +3 more
openaire +1 more source
Video quality management for mobile video application
SPIE Proceedings, 2010This paper first briefly reviewed sources of visual quality degradation during video compression and also different video quality assessment techniques. It further extended discussion beyond video compression to other modules in different video application pipeline.
Kai-Chieh Yang +2 more
openaire +1 more source
Mining web videos for video quality assessment
2010 International Conference of Soft Computing and Pattern Recognition, 2010Correlating estimates of objective measures related to the presence of different coding artifacts with the quality of video as perceived by human observers is a non-trivial task. There is no shortage of data to learn from, thanks to the Internet and web-sites such as YouTubetm.
Dubravko Culibrk +3 more
openaire +1 more source
Video Quality Classsification Based Home Video Segmentation
2005 IEEE International Conference on Multimedia and Expo, 2005Home videos often have some abnormal camera motions, such as camera shaking and irregular camera motions, which cause the degradation of visual quality. To remove bad quality segments and automatic stabilize shaky ones are necessary steps for home video archiving.
null Si Wu +2 more
openaire +1 more source