Quality assessment metrics vs. PSNR under packet lossscenarios in manet wireless networks
Proceedings of the international workshop on Workshop on mobile video
M-LTW: A fast and efficient intra video codec
Image Communication
M-LTW: a fast and efficient non-embedded intra video codec
PCM'07 Proceedings of the multimedia 8th Pacific Rim conference on Advances in multimedia information processing
Pick your layers wisely - a quality assessment of H.264 scalable video coding for mobile devices
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Pervasive and Mobile Computing
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When comparing the performance of different video coding approaches, improvements or new codec designs, one of the most important performance metrics is the Rate/Distortion (R/D), where distortion use to be measured in terms of PSNR (Peak Signal-to- Noise Ratio) values. However, it is well known that this metric not always capture the distortion perceived by the human being. So, a lot efforts were performed to define an objective video quality metric that is able to measure video quality distortion close to the one perceived for the destination user. In this work, we perform a study of different available objective quality metrics in order to evaluate their behaviour, taking as reference the classical PSNR metric. Our purpose is to find, if any, a video quality metric that is able to substitute PSNR for video quality assessment and determine a more accurate R/D performance metric when designing and evaluating video codec proposals.