JPEG XS - A New Standard for Visually Lossless Low-Latency Lightweight Image Coding
(2021) Proceedings of the IEEE — Vol. 109, n° 9, p. 1559-1577 (2021)
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- Abstract
- JPEG XS is a new International Standard from the JPEG Committee (formally known as ISO/IEC JTC1/SC29/WG1). It defines an interoperable, visually lossless low-latency lightweight image coding that can be used for mezzanine compression within any AV market. Among the targeted use cases, one can cite video transport over professional video links (SDI, IP, Ethernet), real-time video storage, memory buffers, omnidirectional video capture and rendering, and sensor compression (for example in cameras and in the automotive industry). The Core Coding System is composed of an optional color transform, a wavelet transform and a novel entropy encoder, processing groups of coefficients by coding their magnitude level and packing the magnitude refinement. Such a design allows for visually transparent quality at moderate compression ratios, scalable end-to-end latency that ranges from less than one line to a maximum of 32 lines of the image, and a low complexity real-time implementation in ASIC, FPGA, CPU and GPU. This paper details the key features of this new standard and the profiles and formats that have been defined so far for the various applications. It also gives a technical description of the Core Coding System. Finally, the latest performance evaluation results of recent implementations of the standard are presented, followed by the current status of the ongoing standardization process and future milestones.
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Citations
Descampe, A., Richter, T., Ebrahimi, T., Foessel, S., Keinert, J., Bruylants, T., Pellegrin, P., Buysschaert, C., & Rouvroy, G. (2021). JPEG XS - A New Standard for Visually Lossless Low-Latency Lightweight Image Coding. Proceedings of the IEEE, 109(9), 1559-1577. https://doi.org/10.1109/jproc.2021.3080916 (Original work published 2021)