UHD-2/8K 120-Hz Realtime Video Codec

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: SMPTE Mot. Imag. J
Volume: 129, No. 7, pp. 41–49
Abstract: This paper introduces the world’s first ultrahigh-definition (UHD)-2/8K 120-Hz high-efficiency video coding (HEVC)/H.265 realtime video codec that complies with 8K broadcasting standards in Japan. The validation results of the processing performance and image quality are presented, and an 8K 120-Hz live transmission experiment using the codec is described. In realtime high-frame-rate 8K 120-Hz video encoding and decoding, both high-speed processing and high-image-quality encoding are necessary. In this study, the encoder processes an 8K 120-Hz video in parallel with 12 UHD-1/4K 60-Hz encoders (four and three partitions in the spatial and temporal directions, respectively) after analyzing the down-converted 4K input video. In the decoder, video- and audio-decoding functions were implemented using highly parallelized software. Through validation, we confirmed that the proposed codec achieved high image quality at a low bitrate of 85 Mb/s, which is equivalent to the bitrate of 8K 60-Hz broadcasting, and stable transmission at a high bitrate of up to 400 Mb/s. We also determined that the proposed codec is practical for live transmission.
Publication Date: 2020-08-01
DOI: 10.5594/JMI.2020.3000934
ISSN: Print: 1545-0279 | Electronic: 2160-2492
Link: https://doi.org/10.5594/JMI.2020.3000934
Author(s): Yasuko Sugito
bio
Yasuko Sugito is currently with the Japan Broadcasting Corporation (NHK) Science and Technology Research Laboratories (STRL), Tokyo, Japan, researching video compression algorithms and image processing on 8K. Her current research interests focus on image quality assessment for high-frame-rate (HFR) 8K 120-Hz videos and high dynamic range (HDR) images.
Shinya Iwasaki
bio
Shinya Iwasaki received a master’s degree in computer science and engineering from Waseda University, Tokyo, Japan, in 2014. Currently, he works at NHK STRL, Tokyo. His main research interests are video coding and ultrahigh-definition television (UHDTV) system.
Kazuhiro Chida
bio
Kazuhiro Chida received BS and MS degrees in information and communication engineering from the University of Electro-Communications, Tokyo, Japan, in 2007 and 2009, respectively. Currently, he works at NHK STRL, Tokyo. His main research interests are video coding and UHDTV system.
Kazuhisa Iguchi
bio
Kazuhisa Iguchi received BS and MS degrees in electrical engineering from the Tokyo Institute of Technology, Tokyo, Japan, in 1991 and 1993, respectively. He joined NHK, Tokyo, Japan, in 1993, and has been working at NHK STRL. He is engaged in the research of television standards conversion for HDTV, scene description, and moving picture coding. He is a member of Institute of Electronics, Information and Communication Engineers (IEICE) Japan and Institute of Image Information and Television Engineers (ITE) Japan.
Kikufumi Kanda
bio
Kikufumi Kanda received BS and MS degrees in electrical engineering from Sophia University, Tokyo, Japan, in 1990 and 1992, respectively. Currently, he works at NHK STRL, Tokyo. His main research interests are UHDTV system and video coding.
Xuying Lei
bio
Xuying Lei received a master’s degree in information and communication engineering from Kanazawa University, Kanazawa, Japan, in 2011. Currently, she works with Fujitsu Laboratories Ltd., Kanagawa, Japan. She used to work on 8K UHDTV video encoding and compression. Recently, she focuses on developing a different video encoding and compression approach, especially for machine vision, which is expected to achieve lower bitrate while high accuracy is preserved under various AI image recognition scenarios.
Hidenobu Miyoshi
bio
Hidenobu Miyoshi received a master’s degree in information science and electrical engineering from Kyushu University, Fukuoka, Japan, in 2001. He is currently with Fujitsu Laboratories Ltd., Kanagawa, Japan, researching video transmission using 5G wireless communication. His main research interests are edge cloud system and applications of video coding and image processing.
Yoshifumi Uehara
bio
Yoshifumi Uehara is a senior director with the Fujitsu Business Planning Division. Before joining Fujitsu Laboratories Ltd., Kanagawa, Japan, as a principal researcher in 2017, he was the Semiconductor new business development director at Fujitsu Limited, Kanagawa, Japan, since 2010, and the General Manager of Advanced Engineering, the IoT Engineering Business Unit, Fujitsu Limited since 2015.
Keyword(s): HFR, Performance Evaluation, Realtime Encoder and Decoder, UHD-2
Copyright: © 2020 SMPTE

Bibliographic Reference(s)

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Association of Radio Industries and Businesses (ARIB), STD-B32 Version 3.11-E1, “Video Coding, Audio Coding, and Multiplexing Specifications for Digital Broadcasting,” Jul. 2018. EXTERNAL
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Y. Sugito et al., “HEVC/H.265 Codec System and Transmission Experiments Aimed at 8K Broadcasting,” The Best of IET and IBC 2015–2016, 7:24–29, Sep. 2015. EXTERNAL
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A. Ichigaya and Y. Nishida, “Required Bit Rates Analysis for a New Broadcasting Service Using HEVC/H.265,” IEEE Trans. Broadcast., 65(2): 417–425, Apr. 2016. EXTERNAL
S. Iwasaki, X. Lei, K. Chida, Y. Sugito, K. Iguchi, K. Kanda, H. Miyoshi, and Y. Uehara, “The Required Video Bitrate for 8K120-HZ Real-Time Temporal Scalable Coding,” in Proc. 2020 IEEE Int. Conf. Consum. Electron. (ICCE), pp. 1–5, 2020. EXTERNAL
M. Alvarez-Mesa and C. C. Chi, “HEVC Software Media Player for Ultra-High-Quality Video: 8K and Beyond,” in Proc. Int. Display Workshops (IDW ’18), pp. 1437–1440, 2018. EXTERNAL
Y. Sugito, S. Iwasaki, K. Chida, K. Iguchi, K. Kanda, X. Lei, H. Miyoshi, and Y. Uehara, “8K 120-Hz Real-Time Video Codec,” in Proc. 2019 NAB Broadcast Eng. Inf. Technol. Conf. (BEITC), pp. 453–457, 2019. EXTERNAL
“8K/120 Hz Video Codec,” May 22, 2020. [Online]. Available: https://www.nhk.or.jp/strl/open2018/tenji/14_e.html EXTERNAL
“Full-Featured 8K Live Production and Transmission Experiment,” May 27, 2020. [Online]. Available: https://www.nhk.or.jp/strl/open2019/tenji/6_e.html EXTERNAL
C. C. Chi, M. Alvarez-Mesa, B. Bross, B. Juurlink, and T. Schierl, “SIMD Acceleration for HEVC Decoding,” IEEE Trans. Circuits Syst. Video Technol., 25(5):841–855, Oct. 2014. EXTERNAL
R-REC-BT.500-14 — International Telecommunication Union – Radiocommunication (ITU-R), Recommendation BT.500-14, “Methodologies for the Subjective Assessment of the Quality of Television Images,” Oct. 2019. EXTERNAL
R-REC-BT.2077-2 — International Telecommunication Union - Radiocommunication (ITU-R), Recommendation BT.2077-2, “Real-time Serial Digital Interfaces for UHDTV Signals,” Jun. 2017. EXTERNAL
ITU-R BT.2100-2 [Active]
SMPTE ST 2022-2:2007 [Active]
T-REC-H.265.2017 — International Organization for Standardization (ISO)/International Electrotechnical Commission (IEC) 23008-2:2017, “High Efficiency Coding and Media Delivery in Heterogeneous Environments—Part 2: High Efficiency Video Coding.” International Telecommunication Union – Telecommunication (ITU-T), Recommendation H.265, “High Efficiency Video Coding,” Feb. 2018. EXTERNAL
T-REC-P.910 — ITU-T Recommendation P.910, “Subjective Video Quality Assessment Methods for Multimedia Applications,” International Telecommunication Union, Geneva, Switzerland, Apr. 2008. EXTERNAL

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Yasuko Sugito, Shinya Iwasaki, Kazuhiro Chida, Kazuhisa Iguchi, Kikufumi Kanda, Xuying Lei, Hidenobu Miyoshi, and Yoshifumi Uehara; UHD-2/8K 120-Hz Realtime Video Codec, SMPTE Motion Imaging Journal ( Volume: 129, Issue: 7, August 2020); SMPTE, 2020. Available at https://doi.org/10.5594/JMI.2020.3000934

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Yasuko Sugito, Shinya Iwasaki, Kazuhiro Chida, Kazuhisa Iguchi, Kikufumi Kanda, Xuying Lei, Hidenobu Miyoshi, and Yoshifumi Uehara; UHD-2/8K 120-Hz Realtime Video Codec, SMPTE Motion Imaging Journal ( Volume: 129, Issue: 7, August 2020); SMPTE, 2020. Available at https://doi.org/10.5594/JMI.2020.3000934

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<span class="citation">Yasuko Sugito, Shinya Iwasaki, Kazuhiro Chida, Kazuhisa Iguchi, Kikufumi Kanda, Xuying Lei, Hidenobu Miyoshi, and Yoshifumi Uehara; <cite>UHD-2/8K 120-Hz Realtime Video Codec</cite>, SMPTE Motion Imaging Journal ( Volume: 129, Issue: 7, August 2020); SMPTE, 2020. Available at <a href="https://doi.org/10.5594/JMI.2020.3000934" target="_blank" rel="noopener">https://doi.org/10.5594/JMI.2020.3000934</a></span>

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Yasuko Sugito, Shinya Iwasaki, Kazuhiro Chida, Kazuhisa Iguchi, Kikufumi Kanda, Xuying Lei, Hidenobu Miyoshi, and Yoshifumi Uehara; UHD-2/8K 120-Hz Realtime Video Codec, SMPTE Motion Imaging Journal ( Volume: 129, Issue: 7, August 2020); SMPTE, 2020
doi: 10.5594/JMI.2020.3000934
url: https://doi.org/10.5594/JMI.2020.3000934

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<li>
Yasuko Sugito, Shinya Iwasaki, Kazuhiro Chida, Kazuhisa Iguchi, Kikufumi Kanda, Xuying Lei, Hidenobu Miyoshi, and Yoshifumi Uehara; <cite id="bib-10-5594-jmi-2020-3000934">UHD-2/8K 120-Hz Realtime Video Codec</cite>, SMPTE Motion Imaging Journal ( Volume: 129, Issue: 7, August 2020); SMPTE, 2020
<span class="doi">10.5594/JMI.2020.3000934</span>
</li>