Tuesday, April 17th 2018

Joint Photographic Experts Group Announces JPEG XS Format for Streaming Scenarios

The Joint Photographic Experts Group (JPEG), an international committee headed by an EPFL professor, has just unveiled JPEG XS. A new time of higher amounts of content consumption - and the ways we consume it - requires a new way to send its data. With this new format, the image-compression process uses less energy, and higher-quality images can be sent with low latency over broadband networks like 5G. JPEG XS will have applications in areas such as virtual reality, augmented reality, space imagery, self-driving cars and professional movie editing.

Headed by Touradj Ebrahimi, a professor in EPFL's School of Engineering (STI), the JPEG XS format was essentially designed to stream live video and VR - it's not a replacement to JPEG, and file-sizes will actually end up being slightly bigger. The big push with this format is lower compression and decompression latency, as well as energy efficiency of the decompression process itself. The fact that it's open source and has a universal HDR coding format also means that its uptake should be relatively high.
"We are compressing less in order to better preserve quality, and we are making the process faster while using less energy," says JPEG leader Touradj Ebrahimi in a statement. According to Ebrahimi, the JPEG XS video compression will be less severe than with JPEG photos -- while JPEG photos are compressed by a factor of 10, JPEG XS is compressed by a factor of 6. The group promises a "visual lossless" quality to the images of JPEG XS.
Sources: Mediacom News, via Engadget
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