DOCOMO intros 8k VR streaming
NTT DOCOMO in Japan has developed what it says is the world's first 8K virtual reality (VR) live video streaming and viewing system for ...
NTT DOCOMO in Japan has developed what it says is the world's first 8K virtual reality (VR) live video streaming and viewing system for showing live events in 360-degree 8K VR video via a head-mounted viewing system.
Processing 4 x 4K video for real-time stitching and compression into 360-degree 8K video is difficult to achieve with software. DOCOMO's solution was to use a field programmable gate array (FPGA) for processing and an algorithm for high-density mounting (maximizes FPGA processing) at 30 frames per second (fps).
To view video in the head-mounted display, the 360-degree 8K video is divided into multiple clipped videos (tiles) so that only the video corresponding to the user's viewing direction needs to be displayed. In addition, a Panorama Cho Engine encoder is used for devising algorithms to enable real-time operation, thereby reducing the processing demands for live transmission.
The system comprises equipment that stitches together five 4K fisheye videos from five outward-facing cameras in real time at 30 fps, an 8K H.264 encoder for real-time compression, the real-time Panorama Cho Engine encoder to divide the video into multi-direction tiles, and a server to transmit tiles according to the user's viewing direction.
This system will be exhibited at DOCOMO 5G Open Lab Yotsuya, which offers several 5G technologies for testing in collaboration with more than 1,500 companies participating in the DOCOMO 5G Open Partner Program.