Overview of the JPEG XS objective evaluation procedures
| Autor: | Alexandre Willeme, Chris Rosewarne, Thomas Richter, Benoît Macq |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Lossless compression
Engineering drawing Computer science Frame (networking) Real-time computing ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Data_CODINGANDINFORMATIONTHEORY 02 engineering and technology computer.file_format 01 natural sciences JPEG 010309 optics Uncompressed video Robustness (computer science) 0103 physical sciences Compression ratio 0202 electrical engineering electronic engineering information engineering Codec 020201 artificial intelligence & image processing Metric (unit) computer |
| Zdroj: | Applications of Digital Image Processing XL. |
| DOI: | 10.1117/12.2273168 |
| Popis: | JPEG XS is a standardization activity conducted by the Joint Photographic Experts Group (JPEG), formally known as ISO/IEC SC29 WG1 group that aims at standardizing a low-latency, lightweight and visually lossless video compression scheme. This codec is intended to be used in applications where image sequences would otherwise be transmitted or stored in uncompressed form, such as in live production (through SDI or IP transport), display links, or frame buffers. Support for compression ratios ranging from 2:1 to 6:1 allows significant bandwidth and power reduction for signal propagation. This paper describes the objective quality assessment procedures conducted as part of the JPEG XS standardization activity. Firstly, this paper discusses the objective part of the experiments that led to the technology selection during the 73th WG1 meeting in late 2016. This assessment consists of PSNR measurements after a single and multiple compression decompression cycles at various compression ratios. After this assessment phase, two proposals among the six responses to the CfP were selected and merged to form the first JPEG XS test model (XSM). Later, this paper describes the core experiments (CEs) conducted so far on the XSM. These experiments are intended to evaluate its performance in more challenging scenarios, such as insertion of picture overlays, robustness to frame editing, assess the impact of the different algorithmic choices, and also to measure the XSM performance using the HDR VDP metric. |
| Databáze: | OpenAIRE |
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