CASIA OpenIR  > 模式识别国家重点实验室  > 多媒体计算与图形学
Simulating Human Visual Perception in Nighttime Illumination
Zhou, Ning; Dong, Weiming; Wang, Jiaxin; Paul, Jean-Claude
Source PublicationTsinghua Science and Technology
AbstractThis 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.
KeywordVisual Perception Scotopic Vision Mesopic Vision Visual Acuity Bilateral Filter
Indexed ByEI
Document Type期刊论文
Corresponding AuthorWang, Jiaxin
Affiliation1.Department of Computer Science and Technology, Tsinghua University
2.Institute of Automation, Chinese Academy of Sciences
Recommended Citation
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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