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http://dx.doi.org/10.5909/JEB.2012.17.2.223

Video Coding Method Using Visual Perception Model based on Motion Analysis  

Oh, Hyung-Suk (College of Electronics and Radio Engr. Kyung Hee University)
Kim, Won-Ha (College of Electronics and Radio Engr. Kyung Hee University)
Publication Information
Journal of Broadcast Engineering / v.17, no.2, 2012 , pp. 223-236 More about this Journal
Abstract
We develop a video processing method that allows the more advanced human perception oriented video coding. The proposed method necessarily reflects all influences by the rate-distortion based optimization and the human visual perception that is affected by the visual saliency, the limited space-time resolution and the regional moving history. For reflecting the human perceptual effects, we devise an online moving pattern classifier using the Hedge algorithm. Then, we embed the existing visual saliency into the proposed moving patterns so as to establish a human visual perception model. In order to realize the proposed human visual perception model, we extend the conventional foveation filtering method. Compared to the conventional foveation filter only smoothing less stimulus video signals, the developed foveation filter can locally smooth and enhance signals according to the human visual perception without causing any artifacts. Due to signal enhancement, the developed foveation filter more efficiently transfers the bandwidth saved at smoothed signals to the enhanced signals. Performance evaluation verifies that the proposed video processing method satisfies the overall video quality, while improving the perceptual quality by 12%~44%.
Keywords
visual saliency; human visual perception; video coding; hedge;
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