Localized multiple adaptive interpolation filters with single-pass encoding

Xun Guo; Kai Zhang; Yu-Wen Huang; Jicheng An; Chih-Ming Fu; Shawmin Lei

doi:10.1117/12.863534

4 August 2010 Localized multiple adaptive interpolation filters with single-pass encoding

Xun Guo, Kai Zhang, Yu-Wen Huang, Jicheng An, Chih-Ming Fu, Shawmin Lei

Proceedings Volume 7744, Visual Communications and Image Processing 2010; 77441F (2010) https://doi.org/10.1117/12.863534
Event: Visual Communications and Image Processing 2010, 2010, Huangshan, China

Abstract

Adaptive interpolation filtering (AIF) algorithms have been proposed to enhance the hybrid video coding scheme recently. Although these algorithms can improve coding efficiency significantly, their encoders suffer huge increase in complexity in terms of latency and memory access due to its inherent multi-pass encoding procedure. In this paper, we present a novel single-pass solution for these algorithms, which allows optimal selection among different interpolation filters. In this solution, time-delayed interpolation filters are used to achieve single-pass encoding, and localized ratedistortion (RD) selection is used to compensate the possible coding loss from time-delayed filters. Experimental results show that the proposed method is efficient for All AIF techniques in current ITU-T/SG16 reference software. By using the proposed method, single-pass encoding with multiple AIF filters can be achieved while maintaining similar coding efficiency as multi-pass AIF.

Citation Download Citation

Xun Guo, Kai Zhang, Yu-Wen Huang, Jicheng An, Chih-Ming Fu, and Shawmin Lei "Localized multiple adaptive interpolation filters with single-pass encoding", Proc. SPIE 7744, Visual Communications and Image Processing 2010, 77441F (4 August 2010); https://doi.org/10.1117/12.863534

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