低透過(guò)率下隧道照明亮度對(duì)能見(jiàn)度的影響
[Abstract]:In order to study the influence of tunnel lighting brightness on visibility at low transmittance, and to provide the basis for the adjustment of tunnel lighting luminance under low transmittance, two cameras with different spectral characteristics were used as observation devices to obtain the transmittance. The relationship between illumination brightness and target / background contrast. The experimental results show that the target / background contrast increases with the increase of illumination brightness, and the transmittance limits the maximum value of the target / background contrast. In a certain range of luminance, raising brightness and increasing contrast of target / background can effectively improve visibility. When the illumination brightness is high, the improvement of illumination brightness has little effect on visibility; when the illumination brightness is low, the effect of improving lighting brightness on visibility is obvious. Therefore, the illumination brightness can be adjusted proportionally according to the transmittance to ensure visibility and driving safety.
【作者單位】: 大連海事大學(xué)信息科學(xué)技術(shù)學(xué)院光電實(shí)驗(yàn)室;吉林省高等級(jí)公路建設(shè)局;
【基金】:吉林省交通科技項(xiàng)目(No.2014-4-1-3)資助~~
【分類(lèi)號(hào)】:U453.7
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