Joint Photographic Experts Group (JPEG), an international committee led by Professor EPFL, introduced the new format of JPEG XS. It allows you to compress images using less energy, and send high-quality images over networks with low latency like 5G. JPEG XS will find application in such areas as virtual reality, augmented reality, space visualization, self-guided cars and professional editing of films.
Why do users of virtual reality headsets vomit? One of the reasons is latency, or delay, an almost imperceptible amount of time that the image needs to change in response to the movement of the user's head. JPEG experts presented a new standard of image compression, which can solve this problem. The work was conducted by a group of Turaj Ebrahimi, professor of the School of Engineering (STI) EPFL.
With JPEG XS, images and video will be able to maintain the highest level of quality, by simplifying and accelerating the compression process - and this will also mean energy efficiency. Compressed files will be larger, but this is not a problem for broadband data networks like Wi-Fi or 5G: the task is set to transfer files, rather than store them on smartphones or other devices with limited memory.
And this means that you can use your smartphone, tablet or computer to project a HD movie or video game on the big screen almost instantly. No need for any cables, and picture quality will be extremely high.
"For the first time in the history of image encoding, we began to shrink less to ensure better quality preservation, and made this process faster and more ergonomic," says Professor Ebrahimi. "We want to be smarter in what we do. The idea is to use fewer resources and dispose of them wisely. This is a real paradigm shift. "
JPEG compression, which has been popular for the last 25 years, usually reduces the size of the image file by ten orders of magnitude. The compression process was designed so that images could be stored in cameras with a limited amount of memory and can be easily transferred through the network. However, new tasks, new applications, more efficient data transmission networks and technological achievements are coming. The standard JPEG XS compresses files six orders of magnitude and does not necessarily replace the popular JPEG format. He will simply find another application, and there will be a lot of them.
The article is based on materials .
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