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Proceedings Paper

Wyner-Ziv side information generation using a higher order piecewise trajectory temporal interpolation algorithm
Author(s): Mobolaji O. Akinola; Laurence S. Dooley; Patrick K. C. Wong
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Paper Abstract

Distributed video coding (DVC) reverses the traditional coding paradigm of complex encoders allied with basic decoding, to one where the computational cost is largely incurred by the decoder. This enables low-cost, resource-poor sensors to be used at the transmitter in various applications including multi-sensor surveillance. A key constraint governing DVC performance is the quality of side information (SI), a coarse representation of original video frames which are not available at the decoder. Techniques to generate SI have generally been based on linear temporal interpolation, though these do not always produce satisfactory SI quality especially in sequences exhibiting asymmetric (non-linear) motion. This paper presents a higher-order piecewise trajectory temporal interpolation (HOPTTI) algorithm for SI generation that quantitatively and perceptually affords better SI quality in comparison to existing temporal interpolation-based approaches.

Paper Details

Date Published: 1 October 2011
PDF: 8 pages
Proc. SPIE 8285, International Conference on Graphic and Image Processing (ICGIP 2011), 82851W (1 October 2011); doi: 10.1117/12.913459
Show Author Affiliations
Mobolaji O. Akinola, Open Univ. (United Kingdom)
Laurence S. Dooley, Open Univ. (United Kingdom)
Patrick K. C. Wong, Open Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 8285:
International Conference on Graphic and Image Processing (ICGIP 2011)

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