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http://dx.doi.org/10.5391/JKIIS.2014.24.4.424

A Study on the Image-Based Luminance Measurement System Using the Measuring Position  

Sun, Eun-Hey (Dept. of Electrical, Electronic and Control Engineering, Hankyong National University)
Kim, Yong-Tae (Dept. of Electrical, Electronic and Control Engineering, Hankyong National University)
Publication Information
Journal of the Korean Institute of Intelligent Systems / v.24, no.4, 2014 , pp. 424-429 More about this Journal
Abstract
In this paper, an image-based luminance measurement system(LMS) is proposed to measure the luminance of outdoor signboards. We design the LMS that can improve disadvantages of efficiency of the point-luminance meter and portability of face-luminance meter using the image of DSLR camera and print out the luminance value by using the proposed luminance analysis algorithm in real time. Outdoor signboards have various size and shape, and are also installed on the various place. Luminance of the signboard is influenced by measurement location, angle, color, etc. Therefore, we measure the change of luminance value in accordance with measurement location for accurate luminance measurement and then consider the luminance value according to the measurement distance. We obtain a numerical relation between luminance value and measurement location. The proposed LMS is verified through comparative experiment with point-luminance meter.
Keywords
Luminance measure system; Outdoor advertisement sign; Image of DSLR camera; Measurement position; Luminance correction algorithm;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Dietmar Wuller, Helke Gabele, "The usage of digital cameras as luminance meters", Digital Photography III, edited by Russel A. Martin, Jeffrey M. DiCarlo, Nitin Sampat, Proc. of SPIE-IS&T Electronic Imaging, SPIE Vol. 6502, 65020U,
2 Ministry of Environment, "Act on Prevention of Light Pollution by Artificial lighting.", 2012
3 Karel Fliegel, "Imaging photometer with non-professional digital camera", Applications of Digital Image Processing XXXII, edited by Andrew G. Tescher, Proc. of SPIE, Vol. 7443, 74431Q-1.
4 Eun-Hey Sun, Dong-Hyuk Jeong, Yong-Tae Kim, "A study on Luminance Measurement Method Using Image of DSLR Camera" Conference on Information and Control System,, Vol.2013, No.10, pp16-17. 2013
5 Wan-Soo Lee, Kang-Wha Chung, "A study on luminance Measurement Method of Lightscape using DSLR", Journal of the Korea Institute of illuminating and Electrical Installation Engineers, Vol. 2012, No.10, pp. 10-17   과학기술학회마을   DOI
6 Gi-Hoon Kim, "Correction Experiment Between Digital Image is taken by Natural Light and Luminance Measurement Value", Journal of the Korea Institute of illuminating and Electrical Installation Engineers, Vol. 2004, No.5 pp. 217-222, 2004
7 Woo-sik Yun, "Luminance Measure System Using a CCD Camera", Conference on information technology conference , Vol.39, No.2, pp. 206-208, 2012
8 Eun-Hey Sun, Yong-Tae Kim, "A Study on the Luminance Measurement Method Using the Measuring Position", Conference on Korean Institute of Intelligent System, Vol.24, No.1, 2014
9 Peter D. Hiscocks, P. Eng, "Measuring Luminance with a digital camera", www.syscompdesign.com, 2011
10 ISO 14524: 1999, Photography - Electronic still-picture cameras - Method for measuring opto-electronic conversion functions (OECFs)