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Proceedings Paper

Localized multiple adaptive interpolation filters with single-pass encoding
Author(s): Xun Guo; Kai Zhang; Yu-Wen Huang; Jicheng An; Chih-Ming Fu; Shawmin Lei
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Paper 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.

Paper Details

Date Published: 4 August 2010
PDF: 8 pages
Proc. SPIE 7744, Visual Communications and Image Processing 2010, 77441F (4 August 2010); doi: 10.1117/12.863534
Show Author Affiliations
Xun Guo, MediaTek Inc. (China)
Kai Zhang, MediaTek Inc. (China)
Institute of Computing Technology (China)
Yu-Wen Huang, MediaTek Inc. (Taiwan)
Jicheng An, MediaTek Inc. (China)
Chih-Ming Fu, MediaTek Inc. (Taiwan)
Shawmin Lei, MediaTek Inc. (Taiwan)


Published in SPIE Proceedings Vol. 7744:
Visual Communications and Image Processing 2010
Pascal Frossard; Houqiang Li; Feng Wu; Bernd Girod; Shipeng Li; Guo Wei, Editor(s)

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