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Proceedings Paper

Parallelization and multi-threaded latency constrained parallel coding of JPEG XS
Author(s): Thomas Richter; Joachim Keinert; Siegfried Fößel
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Paper Abstract

This paper discusses the background, challenges, opportunities for parallelization of low-latency video transport of JPEG XS streams over the real-time network protocol (RTP). Transport of compressed video signals over a constant bitrate channel requires smoothing buffers at encoder and decoder side. To limit their sizes in partical implementations, part 2 of the JPEG XS standard defines a normative buffer model along a sequential hypothetical reference decoder. Due to its sequential nature, it cannot be directly applied to high-speed applications that necessarily depend on multithreading. In this paper, the JPEG XS Part 2 buffer model is introduced, then the current state of JPEG XS RTP transport standardization is discussed, and multiple strategies for multithreaded encoding under latency contraints within this application are reported and analyzed.

Paper Details

Date Published: 6 September 2019
PDF: 9 pages
Proc. SPIE 11137, Applications of Digital Image Processing XLII, 111370J (6 September 2019); doi: 10.1117/12.2526917
Show Author Affiliations
Thomas Richter, Fraunhofer-Institut für Integrierte Schaltungen IIS (Germany)
Joachim Keinert, Fraunhofer-Institut für Integrierte Schaltungen IIS (Germany)
Siegfried Fößel, Fraunhofer-Institut für Integrierte Schaltungen IIS (Germany)

Published in SPIE Proceedings Vol. 11137:
Applications of Digital Image Processing XLII
Andrew G. Tescher; Touradj Ebrahimi, Editor(s)

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