Simulating Human Visual Perception in Nighttime Illumination
Zhou, Ning; Dong, Weiming; Wang, Jiaxin; Paul, Jean-Claude
2009-02
发表期刊Tsinghua Science and Technology
卷号14期号:1页码:133-138
摘要This paper presents an image-based algorithm for simulating the visual adaptation of the human visual system to various illuminations, especially in dark nighttime conditions. The human visual system exhibits different characteristics depending on the illumination intensity, with photopic vision in bright conditions, scotopic vision in dark conditions, and mesopic vision between these two. A computational model is designed to simulate multiple features of mesopic vision and scotopic vision, including the chromaticity change, luminance change, and visual acuity loss. The system uses a source image under bright illumination as input. Then assuming that the viewer has already adapted to the new conditions, the color spectrum of the input image is reconstructed to replace the source with modifications of the chromaticity and the luminance of the relighted scene. A bilateral filter is used to simulate the visual acuity loss. The model parameters have clear physical meanings and can be obtained from experimental data to achieve realistic results.The algorithm can be used not only for visual perception simulation, but also as a day-for-night tool to produce realistic nighttime images from daytime images.
关键词Visual Perception Scotopic Vision Mesopic Vision Visual Acuity Bilateral Filter
收录类别EI
语种英语
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/13029
专题模式识别国家重点实验室_多媒体计算与图形学
通讯作者Wang, Jiaxin
作者单位1.Department of Computer Science and Technology, Tsinghua University
2.Institute of Automation, Chinese Academy of Sciences
3.INRIA
推荐引用方式
GB/T 7714
Zhou, Ning,Dong, Weiming,Wang, Jiaxin,et al. Simulating Human Visual Perception in Nighttime Illumination[J]. Tsinghua Science and Technology,2009,14(1):133-138.
APA Zhou, Ning,Dong, Weiming,Wang, Jiaxin,&Paul, Jean-Claude.(2009).Simulating Human Visual Perception in Nighttime Illumination.Tsinghua Science and Technology,14(1),133-138.
MLA Zhou, Ning,et al."Simulating Human Visual Perception in Nighttime Illumination".Tsinghua Science and Technology 14.1(2009):133-138.
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