UHD-2/8K Camera Recorder Using Organic CMOS Image Sensor

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: SMPTE Mot. Imag. J
Volume: 129, No. 6, pp. 52–60
Abstract: We developed an ultrahigh-definition (UHD)-2/8K camera recorder that uses a complementary metal–oxide semiconductor (CMOS) image sensor with an organic thin-film, instead of photodiodes for the opto-electrical conversion element. The advent of UHD-2/8K Super Hi-Vision broadcasts and an increase in the production of UHD-2/8K programs across a variety of genres necessitate the development of a sensor with a good signal-to-noise ratio (SNR) and high-dynamic range (HDR) to capture the full range of HDR video. To ensure successful use of this sensor, we studied the level diagrams (e.g., balancing of sensitivity, SNR, and dynamic range) that would best fit the sensor’s characteristics and use its strengths, and then proceeded accordingly. For the current UHD-2/8K location shooting, a workflow is needed to record raw data and post-process them into a practical video format. To implement a more efficient workflow, we chose to use Grass Valley HQX compression encoding while adding features that make it possible to store video data in a compressed form and simultaneously generate high-definition television (HDTV) proxy data. The workflow that we envisioned uses proxy data for offline editing and relinks them using online editing equipment.
Publication Date: 2020-07-01
DOI: 10.5594/JMI.2020.2995252
ISSN: Print: 1545-0279 | Electronic: 2160-2492
Link: https://doi.org/10.5594/JMI.2020.2995252
Author(s): Shingo Sato
bio
Shingo Sato joined Japan Broadcasting Corporation (NHK), Tokyo, Japan, where he worked on the creation of news programs immediately after graduating from Waseda University, Tokyo, in 2011. In 2015, he moved to the technical management section in NHK and has been in charge of the development of camera systems for TV studios, especially for 8K, recently.
Takayuki Yamashita
bio
Takayuki Yamashita is currently working on the research, development, and standardization of ultrahigh definition television systems as a senior research engineer with the Science and Technology Research Laboratories, NHK, Tokyo, Japan. He joined NHK in 1995 and has been engaged in research on camera systems for broadcasting since 1999. He is a member of SMPTE and the Institute of Image, Information and TelevisionEngineers (ITE).
Masayuki Miyazaki
bio
Masayuki Miyazaki joined Japan NHK, Tokyo, Japan, where he worked on the creation of news programs, right after graduating from Sophia University, Tokyo, in 1994. In 2000, he moved to the technical administration section in NHK and has become responsible for facilitation planning and technology development, especially in 8K/4K production facilities, from shooting to distribution, including both package and live productions.
Keyword(s): 8K, HDR, Negative Gain, Workflow
Copyright: © 2020 SMPTE

Bibliographic Reference(s)

O. Yadid-Pecht and E. R. Fossum, “Wide Intrascene Dynamic Range CMOS APS Using Dual Sampling,” IEEE Trans. Electron Devices, 44(10):1721–1722, Oct. 1997. EXTERNAL
K. Nishimura et al., “An Over 120 dB Simultaneous-Capture Wide-Dynamic-Range 1.6e—Ultra-Low-Reset-Noise Organic-Photoconductive-Film CMOS Image Sensor,” ISSCC Dig. Tech. Papers, pp. 110–112, Feb. 2016. EXTERNAL
A. Takemoto, “The Benefits of HQX,” May 2014. [Online]. Available: https://www.ediusworld.com/wp/wp-content/uploads/2017/12/GVB-1-0027A-EN-WP_Intro_HQX.pdf EXTERNAL
“Ultra-High Definition/Wide-Color-Gamut Standard Test Sequences—Series A,” ITE. [Online]. Available: https://www.ite.or.jp/content/test-materials/uhdtv_a/ EXTERNAL
M. Mori et al., “Thin Organic Photoconductive Film Image Sensors with Extremely High Saturation of 8500 Electrons/ μm2,” Dig. VLSI Circuits, pp. T22–T23, Jun. 2013. EXTERNAL
H. Kobayashi et al., “Development of a Wide Dynamic Range Image Sensor for SLR, Super CCD SR II,” Fujifilm Research & Development, No. 50, 2005. EXTERNAL

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Shingo Sato, Takayuki Yamashita, and Masayuki Miyazaki; UHD-2/8K Camera Recorder Using Organic CMOS Image Sensor, SMPTE Motion Imaging Journal ( Volume: 129, Issue: 6, July 2020); SMPTE, 2020. Available at https://doi.org/10.5594/JMI.2020.2995252

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Shingo Sato, Takayuki Yamashita, and Masayuki Miyazaki; UHD-2/8K Camera Recorder Using Organic CMOS Image Sensor, SMPTE Motion Imaging Journal ( Volume: 129, Issue: 6, July 2020); SMPTE, 2020. Available at https://doi.org/10.5594/JMI.2020.2995252

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<span class="citation">Shingo Sato, Takayuki Yamashita, and Masayuki Miyazaki; <cite>UHD-2/8K Camera Recorder Using Organic CMOS Image Sensor</cite>, SMPTE Motion Imaging Journal ( Volume: 129, Issue: 6, July 2020); SMPTE, 2020. Available at <a href="https://doi.org/10.5594/JMI.2020.2995252" target="_blank" rel="noopener">https://doi.org/10.5594/JMI.2020.2995252</a></span>

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Shingo Sato, Takayuki Yamashita, and Masayuki Miyazaki; UHD-2/8K Camera Recorder Using Organic CMOS Image Sensor, SMPTE Motion Imaging Journal ( Volume: 129, Issue: 6, July 2020); SMPTE, 2020
doi: 10.5594/JMI.2020.2995252
url: https://doi.org/10.5594/JMI.2020.2995252

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Shingo Sato, Takayuki Yamashita, and Masayuki Miyazaki; <cite id="bib-10-5594-jmi-2020-2995252">UHD-2/8K Camera Recorder Using Organic CMOS Image Sensor</cite>, SMPTE Motion Imaging Journal ( Volume: 129, Issue: 6, July 2020); SMPTE, 2020
<span class="doi">10.5594/JMI.2020.2995252</span>
</li>