Presentation + Paper
30 September 2024 Forward error correction for low-latency transmission of JPEG XS video streams
Thomas Richter, Siegfried Foessel
Author Affiliations +
Abstract
JPEG XS is a lightweight, low-latency image coding standard for transmission of video streams over IP; sim- ilar to many other coding standards, it does only define the codestream syntax and the decoding algorithm, but not the transport mechanism. For this, IETF defines in RFC 9134 an RTP payload format for JPEG XS for transmission over UDP packets. As long as encoder and decoder are part of the same local area network, error-free transmission can be assumed, but this does not hold for wide-area or wireless networks were packet loss may disrupt the transmission.

While multiple protocols exist to ensure error-free transmission in such networks, many of them depend on packet retransmission which impacts the latency of the overall system and by that one of the unique design aspects of JPEG XS.

In this work, we equip a JPEG XS encoder and decoder with foreward error correction according to SMPTE ST 2022-5 which is able to mitigate such errors while also keeping the latency under control. We report on the outcome of an experiment where we measured image quality as a function of error rate and also provide estimates on the additional latency due to the error correction layer.
Conference Presentation
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Thomas Richter and Siegfried Foessel "Forward error correction for low-latency transmission of JPEG XS video streams", Proc. SPIE 13137, Applications of Digital Image Processing XLVII, 131370O (30 September 2024); https://doi.org/10.1117/12.3027984
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KEYWORDS
Forward error correction

Wavelets

Data transmission

Video

Video coding

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