Real-Time Measurement of Ultra-High Definition Camera Modulation Transfer Function

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Conference Paper
Content Type: Original Research
Volume: 2017, No. 10, pp. 1–19
Abstract: The authors are solely responsible for the content of this technical presentation. The technical presentation does not necessarily reflect the Abstract. This paper presents a system capable of measuring the modulation transfer function (MTF) of a broadcast camera based on its knife-edge responses in real time. This method can be applied to multiple edges in arbitrary directions, unlike the conventional slanted-edge method in the ISO 12233 standard in which only a near-horizontal or vertical edge in a rectangular region of interest (ROI) can be analyzed. The new measurement system significantly facilitates the evaluation of the performances of the camera and lens as well as accurate focusing in an objective manner. Analysis of multidirectional edges on a starburst chart yields a contour plot of the multidirectional MTF for direct observation of the anisotropy due to not only the misalignment of the optical axis of the imaging system but also the pixel arrangement of the image sensor and image processing.
Publication Date: 2017-10-23
DOI: 10.5594/M001795
ISBN: Print: 978-1-61482-959-1
Link: https://doi.org/10.5594/M001795
Author(s): Kenichiro MasaokaNHK, 1-10-11 Kinuta, Setagaya, Tokyo 157-8510, Japan
Kazuyuki AraiNHK, 2-2-1 Jinnan, Shibuya, Tokyo 150-8001, Japan
Kosuke NomuraNHK, 1-10-11 Kinuta, Setagaya, Tokyo 157-8510, Japan
Tomohiro NakamuraNHK, 1-10-11 Kinuta, Setagaya, Tokyo 157-8510, Japan
Yoshiro TakiguchiNHK, 1-10-11 Kinuta, Setagaya, Tokyo 157-8510, Japan
Keyword(s): Multidirectional Modulation Transfer Function (MTF), Realtime Measurement, Knife-edge Response
Copyright: © 2017 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

Association of Radio Industries and Businesses (ARIB), Technical Report TR-B41, “Measurement Methods for Resolution Characteristics of Television Camera Systems,” Sept. 2016 (in Japanese). EXTERNAL
G. D. Boreman, Modulation Transfer Function in Optical and Electro-Optical Systems, SPIE: Bellingham, WA, 2001. EXTERNAL
S. Park, R. Schowengerdt, and M. Kaczynski, “Modulation-transfer-function analysis for sampled image systems,” Appl. Opt., 23: 2572–2582, 1984. EXTERNAL
K. Masaoka, Y. Nishida, M. Sugawara, E. Nakasu, and Y. Nojiri, “Sensation of realness from highresolution images of real objects,” IEEE Trans. Broadcast., 59(1): 72–83, 2013. EXTERNAL
J. K. M. Roland, “A study of slanted-edge MTF stability and repeatability,” Proc. SPIE 9396, Image Quality and System Performance XII, 93960L, 2015. EXTERNAL
C. Loebich, D. Wueller, B. Klingen, and A. Jaeger, “Digital camera resolution measurement using sinusoidal Siemens stars,” Proc. SPIE 6502, 65020N, 2007. EXTERNAL
P. D. Burns, “Slanted-edge MTF for digital camera and scanner analysis,” Proc. PICS 2000, pp. 135–138, 1998. EXTERNAL
J. W. Coltman, “The specification of imaging properties by response to a sine wave input,” J. Opt. Soc. Am., 44: 468–469, 1954. EXTERNAL
K. Masaoka, T. Yamashita, Y. Nishida, and M. Sugawara, "Modified slanted-edge method and multidirectional modulation transfer function estimation," Opt. Express, 22: 6040–6046, 2014. EXTERNAL
Imatest LLC, Sept. 26, 2013, “Transmissive Chart Quality Comparison,” [online] Available: http://www.imatest.com/2013/09/transmissive-chart-quality-comparison/ EXTERNAL
P. D. Burns and D. Williams, “Refined slanted-edge measurement practical camera and scanner testing,” Proc. PICS 2002, pp. 191–195, 1998. EXTERNAL
ISO, 12233:2017, “Photography — Electronic still picture imaging — Resolution and spatial frequency responses.” EXTERNAL

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Kenichiro Masaoka, Kazuyuki Arai, Kosuke Nomura, Tomohiro Nakamura, and Yoshiro Takiguchi; Real-Time Measurement of Ultra-High Definition Camera Modulation Transfer Function, SMPTE Meetings and Conferences ( October 2017); SMPTE, 2017, ISBN: 978-1-61482-959-1. Available at https://doi.org/10.5594/M001795

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Kenichiro Masaoka, Kazuyuki Arai, Kosuke Nomura, Tomohiro Nakamura, and Yoshiro Takiguchi; Real-Time Measurement of Ultra-High Definition Camera Modulation Transfer Function, SMPTE Meetings and Conferences ( October 2017); SMPTE, 2017, ISBN: 978-1-61482-959-1. Available at https://doi.org/10.5594/M001795

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<span class="citation">Kenichiro Masaoka, Kazuyuki Arai, Kosuke Nomura, Tomohiro Nakamura, and Yoshiro Takiguchi; <cite>Real-Time Measurement of Ultra-High Definition Camera Modulation Transfer Function</cite>, SMPTE Meetings and Conferences ( October 2017); SMPTE, 2017, ISBN: 978-1-61482-959-1. Available at <a href="https://doi.org/10.5594/M001795" target="_blank" rel="noopener">https://doi.org/10.5594/M001795</a></span>

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Kenichiro Masaoka, Kazuyuki Arai, Kosuke Nomura, Tomohiro Nakamura, and Yoshiro Takiguchi; <cite id="bib-10-5594-m001795">Real-Time Measurement of Ultra-High Definition Camera Modulation Transfer Function</cite>, SMPTE Meetings and Conferences ( October 2017); SMPTE, 2017, ISBN: 978-1-61482-959-1
<span class="doi">10.5594/M001795</span>
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