To achieve advanced digital terrestrial television broadcasting, we are conducting research on video coding technologies with capabilities beyond the HEVC*1 video coding standard used in the 4K/8K satellite broadcasting. Here, we present new coding tools introduced in VVC*2, the next-generation video coding standard currently being developed by international standardization organizations in which NHK is participating, and demonstrate a visual quality comparison between VVC and HEVC.
VVC, the next-generation video coding standard
The international organizations for standardization, MPEG and ITU-T, are jointly developing VVC as a video coding standard targeting the next generation of broadcasting and video distribution services. The goal is to set the standard by July 2020, with the aim of improving coding efficiency by 30-50% compared to HEVC.
Features and performance of VVC
In the current standardization activity, we have confirmed around 30% better efficiency than HEVC through refining the basic building blocks used in HEVC, such as flexible block partitioning with rectangular shape, a variety of prediction, and multiple transformation technologies. Here, we display the difference between HEVC and VVC visual quality for a same bit rate.