标准编号：ISO/IEC 21122-1:2019
中文名称：信息技术 JPEG XS低延迟轻量级图像编码系统 第1部分：核心编码系统
英文名称：Information technology — JPEG XS low-latency lightweight image coding system — Part 1: Core coding system
发布日期：2019-05
标准范围
This document defines a syntax (and an accompanying decompression process) that is capable to
represent continuous-tone grey-scale, or continuous-tone colour digital images without visual loss at
moderate compression rates. Typical compression rates are between 2:1 and 6:1 but can also be higher
depending on the nature of the image. In particular, the syntax and the decoding process specified
in this document allow lightweight encoder and decoder implementations that limit the end-to-end
latency to a fraction of the frame size. However, the definition of transmission channel buffer models
necessary to ensure such latency is beyond the scope of this document.
This document:
— specifies a decoding process for converting compressed image data to reconstructed image data;
— specifies a codestream syntax containing information for interpreting the compressed image data;
— provides guidance on encoding processes for converting source image data to compressed image data.
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