光学精密工程2017，Vol.25Issue(3)：729-734,6.DOI:10.3788/OPE.20172503.0729
夜间有雾图像的光照模型构建及去雾
Lighting model construction and haze removal for nighttime image
摘要
Abstract
Nighttime haze images degrade seriously and artificial light sources cause uneven atmospheric light.Aimed at those problems,this paper introduced a kind of lighting model applicable to nighttime haze image and realizes nighttime image dehazing.The model mainly consisted of two parameters of atmospheric light and transmission,of which space changed with change of local image content.Firstly,the above parameters were initially estimated based on information loss constraint theory and then refinement was carried out by applying fast guide filter to restrain the block effect and halo effect;finally,ultimate refined parameters were applied to lighting model and target image could be obtained by solving the model.Experimental result shows that the proposed algorithm can realize dehazing treatment for nighttime haze image and show again detail of dark space by suppressing emission of light area simultaneously;recovered scene has favorable brightness,contrast ratio and recovered image has natural color.The overall performance of the algorithm is superior to that of other algorithms.关键词
夜间图像/图像去雾/光照模型/信息损耗约束/快速导向滤波Key words
nighttime image/image dehazing/lighting model/information loss constraint/fast guide filter分类
信息技术与安全科学引用本文复制引用
余顺园,朱虹..夜间有雾图像的光照模型构建及去雾[J].光学精密工程,2017,25(3):729-734,6.基金项目
国家自然科学基金资助项目(No.61673318) （No.61673318）
高层次人才科研启动项目(No.2016AYQDZR06) （No.2016AYQDZR06）
