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Erschienen in:
2013 | OriginalPaper | Buchkapitel
The Glare Evaluation Method Using Digital Camera for Civil Airplane Flight Deck
verfasst von : Zhi Ma, Wei Zhang, Ye Zhou, Jinhai Yu, Baofeng Li
Erschienen in: Engineering Psychology and Cognitive Ergonomics. Applications and Services
Verlag: Springer Berlin Heidelberg
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Glare is a key factor influencing the visual performance in light conditions of civil airplane flight deck, but it is difficult to directly evaluate the complex glare sources in flight deck, such as non-uniform glare, irregular shape glare and indirect glare using current glare equations. In this paper, a method based on digital camera was proposed to evaluate glare is proposed to evaluate the glare from flight deck. Digital camera’s imaging luminance measurement is based on High Dynamic Range (HDR) image processing. The computational procedures to calculate source luminance, background luminance, position index and solid angle of source, to detect the glare sources were developed in Matlab. And then, the desired glare index can be computed. Finally, Daylight Glare Probability (DGP) equation was utilized as an example to evaluate the glare for flight deck in daytime. The results indicate that the proposed method can compute glare index automatically and quickly.