Low Delay Wyner-Ziv Coding Using Optical Flow.

Matteo Salmistraro, Søren Forchhammer

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Distributed Video Coding (DVC) is a video coding paradigm that exploits the source statistics at the decoder based on the availability of the Side Information (SI). The SI can be seen as a noisy version of the source, and the lower the noise the higher the RD performance of the decoder. The SI is usually generated by means of interpolation-based methods, which rely on the availability of a preceding and a following frame with respect to the to-be-decoded one. These methods lead to relatively high RD performance but also high delays. This work is focused on a low-delay DVC codec, relying only on preceding frames for the generation of the SI by means of Optical Flow (OF), which is also used in the refinement step of the SI for enhanced RD performance. Compared with a state-of-the-art extrapolation-based decoder the proposed solution achieves RD Bjontegaard gains up to 1.3 dB.
Original languageEnglish
Title of host publicationProceedings of 2014 IEEE Internatiol Conference on Image Processing
PublisherIEEE
Publication date2014
Article number7026131
ISBN (Print)9781479957514
DOIs
Publication statusPublished - 2014
EventIEEE International Conference on Image Processing - Paris, France
Duration: 27 Oct 201430 Oct 2014

Conference

ConferenceIEEE International Conference on Image Processing
CountryFrance
CityParis
Period27/10/201430/10/2014

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