8K Camera System with Multi-plane Phase-detection Autofocus

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Conference Paper
Content Type: Original Research
Volume: 2021, No. 11, pp. 1–9
Abstract: We propose a phase detection autofocus (PDAF) method for three-chip 8K UHDTV2 240-fps cameras that detects the in-focus position of a lens by using disparity information between pixels with different apertures across multiple sensors. This multi-plane PDAF method executes pupil division in the same incident position while using simple metal-shielded pixel technology, which can achieve accurate AF and enable low-cost implementation. The proposed method implemented in an 8K three-chip camera incorporating 8K sensors with half-shielded phase-detection pixels into the blue and red channels demonstrated robust disparity calculation compared with the conventional single-chip metal-shielded-based PDAF method.
Publication Date: 2021-11-09
DOI: 10.5594/M001939
Link: https://doi.org/10.5594/M001939
Author(s): Kodai KikuchiNHK Science & Technology Research Laboratories, 1-10-11 Kinuta, Setagaya, Tokyo 157-8510, Japan
Ryohei FunatsuNHK Broadcasting Center, 2-2-1 Jinnan, Shibuya, Tokyo 150-8001, Japan
Tomohiro NakamuraNHK Science & Technology Research Laboratories, 1-10-11 Kinuta, Setagaya, Tokyo 157-8510, Japan
Toshio YasueNHK Science & Technology Research Laboratories, 1-10-11 Kinuta, Setagaya, Tokyo 157-8510, Japan
Kohei TomiokaNHK Science & Technology Research Laboratories, 1-10-11 Kinuta, Setagaya, Tokyo 157-8510, Japan
Takayuki YamashitaNHK Science & Technology Research Laboratories, 1-10-11 Kinuta, Setagaya, Tokyo 157-8510, Japan
Keyword(s): Phase Detection Autofocus (PDAF), Metal-shielded Sensor, Three-chip Color Imaging, 8K, High-speed Camera
Copyright: © 2021 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

8K 240-Hz Full-Resolution High-Speed Camera and Slow-Motion Replay Server Systems [Active]
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ITU-R BT.2100-2 [Active]
SMPTE ST 2036-1:2014 [Active, Stabilized]

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Kodai Kikuchi, Ryohei Funatsu, Tomohiro Nakamura, Toshio Yasue, Kohei Tomioka, and Takayuki Yamashita; 8K Camera System with Multi-plane Phase-detection Autofocus, SMPTE Meetings and Conferences ( November 2021); SMPTE, 2021. Available at https://doi.org/10.5594/M001939

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Kodai Kikuchi, Ryohei Funatsu, Tomohiro Nakamura, Toshio Yasue, Kohei Tomioka, and Takayuki Yamashita; 8K Camera System with Multi-plane Phase-detection Autofocus, SMPTE Meetings and Conferences ( November 2021); SMPTE, 2021. Available at https://doi.org/10.5594/M001939

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<span class="citation">Kodai Kikuchi, Ryohei Funatsu, Tomohiro Nakamura, Toshio Yasue, Kohei Tomioka, and Takayuki Yamashita; <cite>8K Camera System with Multi-plane Phase-detection Autofocus</cite>, SMPTE Meetings and Conferences ( November 2021); SMPTE, 2021. Available at <a href="https://doi.org/10.5594/M001939" target="_blank" rel="noopener">https://doi.org/10.5594/M001939</a></span>

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Kodai Kikuchi, Ryohei Funatsu, Tomohiro Nakamura, Toshio Yasue, Kohei Tomioka, and Takayuki Yamashita; <cite id="bib-10-5594-m001939">8K Camera System with Multi-plane Phase-detection Autofocus</cite>, SMPTE Meetings and Conferences ( November 2021); SMPTE, 2021
<span class="doi">10.5594/M001939</span>
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