Wyner-Ziv side information generation using a higher order piecewise trajectory temporal interpolation algorithm

Mobolaji O. Akinola*, Laurence S. Dooley, Patrick K.C. Wong

*Corresponding author for this work

Research output: Chapter in Book or Report/Conference proceedingConference Proceedingpeer-review

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.

Original languageEnglish
Title of host publicationInternational Conference on Graphic and Image Processing, ICGIP 2011
DOIs
Publication statusPublished - 2011
Externally publishedYes
EventInternational Conference on Graphic and Image Processing, ICGIP 2011 - Cairo, Egypt
Duration: 1 Oct 20112 Oct 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8285
ISSN (Print)0277-786X

Conference

ConferenceInternational Conference on Graphic and Image Processing, ICGIP 2011
Country/TerritoryEgypt
CityCairo
Period1/10/112/10/11

Keywords

  • Distributed Video Coding (DVC)
  • Interpolation
  • Side Information (SI)
  • Trajectory
  • Wyner-Ziv

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