Development of an 8K Production System with 120 Hz Frame Frequency

Tetsuya Hayashida, Takuji Soeno, Jun Yonai, Atsushi Iwasaki, Yoshitaka Ikeda, Daiichi Koide, Takayuki Yamashita, Yoshiro Takiguchi, Eiichi Miyashita, Yukihiro Nishida

8K Super Hi-Vision test broadcasting has commenced in Japan in August 2016. With a futuristic view, NHK STRL(Science and Technology Research Laboratories) has been researching a full-featured 8K with a 120-Hz frame frequency. We have developed a signal interface called the ultra high definition signal/data interface (U-SDI) for transmitting 4K and 8K signals using a single optical cable. The interface was standardized as the SMPTE ST 2036-4. In this paper, we discuss the details of the technologies used in the development of various pieces of 8K/120-Hz equipment incorporating the U-SDI that includes an 8K waveform monitor comparable in size to HDTV waveform monitors, a real-time-processing color-grading system, a 17-inch liquid crystal display, and a blanking switcher capable of handling a video data rate of approximately 144 Gbps. In addition, we discuss the integrated system capable of operating both with the full-featured 8K and with the HDTV.

Published: 2016-10
Content type: Original Research
Keywords: 8K, UHDTV, U-SDI, 120 Hz frame frequency
DOI: 10.5594/M001696
ISBN: 978-1-61482-957-7