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Adaptive interpolation filter with flexible symmetry for coding high resolution high quality video
Authors
M Gabbouj
J. Lainema
K. Ugur
Publication date
1 January 2007
Publisher
Doi
Cite
Abstract
In this work, a novel sub-pixel interpolation algorithm is proposed for video coders targeted towards high resolution and high fidelity use cases. Proposed scheme is based on adapting the interpolation filter's symmetry assumptions in a Rate-Distortion-Optimized fashion, taking into account the coding rate and the statistical properties of each image of the video sequence. Experimental results show that, using, the proposed algorithm a gain of Up-to 1.1 dB is achieved compared to non-adaptive sub-pixel interpolation of H.264/AVC, Compared to other state-of-the-art adaptive sub-pixel interpolation methods, a gain of up-to 0.5 dB is achieved, Proposed scheme outperforms H.264/AVC for all test cases; however, improvement is more significant at high bitrates and at high resolutions. This is especially important for future video coding solutions targeting high fidelity video applications. © 2007 IEEE
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Last time updated on 27/02/2019
Hong Kong University of Science and Technology Institutional Repository
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Last time updated on 14/05/2016