• Title/Summary/Keyword: 휴대용 휘도측정시스템

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Luminance Correction Algorithm Based on Measuring Angle for the Portable Luminance Measurement System (휴대용 휘도측정시스템의 측정각도기반 휘도보정알고리즘)

  • Sun, Eun-Hey;Kim, Dongyeon;Kim, Yong-Tae
    • Journal of the Korean Institute of Intelligent Systems
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    • v.26 no.4
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    • pp.321-326
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    • 2016
  • In this paper, we propose a luminance correction algorithm based on measuring position for potable luminance measurement system. Measurement position and angle have an affect on the luminance value. We improve the position-based luminance measurement system using luminance correction algorithm based on the measuring angle. We analyze change of luminance value according to the measurement distance and angle from camera and light source. The certified point-luminance meter is used to evaluate a scene luminance measuring method using the image information of camera. Also, we derive an expression equation for evaluating luminance value from determined position. The performances of the proposed system are verified by using comparative experiments with the point-luminance meter using experimental signboard.