Japan’s KAIT to Demonstrate Uncompressed 8K Video Remote Production

Kanagawa Institute of Technology (KAIT) will conduct an experiment to edit and distribute 8K uncompressed video in real time using peripheral devices supporting 400 Gbps installed on the network at the booth of the National Institute of Information and Communications Technology (NICT) (#3247) at SC22, November 14-17 at the Kay Bailey Hutchison Convention Center in Dallas.

(Image credit: KAIT)

(opens in a new tab)

KAIT previously conducted the demonstration at Interop Tokyo 2022 in June 2022, in collaboration with Daido University, Ryukyus University and Michal Communications; the NICT demonstration at SC22 is the first international experiment.

Video format conversion, which requires high-speed processing, is achieved by chaining software for video processing functions within the peripheral device. When the producer requests video switching by pressing the button, the system instantly switches to the format converted video, and by pressing the color adjustment button, it is possible to adjust the color and create and distribute a video with natural connections.

Kanagawa Institute of Technology, in collaboration with Daido University, Ryukyus University and Miharu Communications Inc., is developing practical technology for high-speed network computing, which includes terminal, edge device and cloud computing. This enables real-time editing and distribution of 8K ultra-high definition (UHD) video without having to use a compression tool and at the same time sacrifice UHD streaming video quality.

When the university network operated by the National Institute of Computing (NII) migrated to SINET6 in April 2022, it built an edge device connected to a 400 Gbps high-speed network in a rack at Sagamihara DC in Kanagawa for its research project.

In June, at Interop Tokyo 2022, a network technology exhibition held in Makuhari, Japan, KAIT demonstrated its Virtualized Video Management Function (VVF) technology by processing uncompressed real-time 8K video using a peripheral device configured in the Sagamihara DC mentioned above. VVF allows the peripheral computer to perform a single real-time video process, such as video transcoding, without degradation. To adopt multiple video processes, multiple VVFs can be chained.


Fig. 1: Realizing an uncompressed 8K UHD video workflow by chaining together multiple video processing functions with the 400 Gbps edge device in Sagamihara DC, Japan
(Image credit: KAIT)

The test proved successful switching of multiple 8K video sources freely through a network using the peripheral device, and color conversion was performed and distributed. Specifically, it instantly switches between uncompressed 8K video in various formats (8K dual green: 8K-DG 24Gbps, 8K full resolution 48Gbps, etc.) from multiple locations, including cameras in cabin, an 8K camera at KAIT, an 8K camera at Ginoza, Okinawa, and two video media stored in 8K at StarBED in Hokuriku. At the same time, the system provides format conversion of switched 8K video without degradation and performs color correction (color correction) in real time.


Fig. 2: System configuration of 8K video processing system at Interop Tokyo 2022 (Image credit: KAIT)

VVFs were developed using the Data Plane Development Kit (DPDK) in a software framework for peripheral devices that require high-speed processing. In addition, AVX-512, Intel’s single-instruction multi-data parallel processing model, can be used for transcoding and color conversion.


High-speed VVF (Virtualized Video Processing Function) using DPDK (Image credit: KAIT)

By chaining multiple VVFs located at the edge of the network and performing high-speed video processing, the local video editing base that was previously essentially becomes unnecessary. Our goal is to enable the editing and distribution of 8K video by connecting a computer directly to the network.

In room SC22, KAIT will present an uncompressed 8K live video stream from an edge device in Japan, configured in NII’s SINET6 Sagamihara Data Center. The video is processed by chained VVFs in the edge system in Japan before KAIT shows it in the room.