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Two novel algorithms are proposed for improving the coding efficiency of adaptive interpolation schemes for video codecs, without increasing implementation complexity. Proposed algorithms utilize two different filter structures with equal tap length, but with complementary frequency responses. Depending on the content being coded, encoder selects which one of the two filter structure is optimal and...
In this paper a novel adaptive interpolation filter structure is proposed to improve the coding efficiency of video coders. Proposed scheme utilizes one dimensional directional adaptive filter for every of the sub-pixel location, whose coefficients are calculated analytically for every frame by minimizing the prediction error energy. The direction of the interpolation filter is different for every...
Technologies used in today's video coding standards have been designed and optimized mainly for standard definition (SD) resolutions and below. When moving to higher resolutions, data in video frames tend to become more correlated spatially. In this paper, we study how to take advantage of this phenomenon to lower computational requirements for high definition (HD) video coding. A coding method based...
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