Color Recognizability in Monitoring under the Influence of Different Light Sources

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  • モニター監視における照明による配色の視認性に関する研究
  • モニター カンシ ニ オケル ショウメイ ニ ヨル ハイショク ノ シニンセイ ニ カンスル ケンキュウ

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Abstract

The diffusion of automation and labor saving devices has given rise to the necessity of condition monitoring of equipment and persons from a remote place through a monitor. When an observer watches a work area through video cameras, the color of equipment differs from its actual color under the influence of sunlight from windows, shadow and lighting fixtures. Therefore, this research aims to analyze visibility in monitoring under several lighting conditions. First, an experiment is carried out to evaluate how the lighting sources affect the ability of the observer to distinguish colors of equipment through the monitor. Next, a statistical method is presented in order to estimate the limit of the color that could be recognized. Then, a method is formulated, which can convert the indistinguishable color on the monitor so that it becomes capable of being recognized.

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