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Simple and effective calculations about spectral power distributions of outdoor light sources for computer vision
Tian JD(田建东); Duan ZG(段志刚); Ren WH(任卫红); Han Z(韩志); Tang YD(唐延东)
作者部门机器人学研究室
发表期刊OPTICS EXPRESS
ISSN1094-4087
2016
卷号24期号:7页码:7266-7286
收录类别SCI ; EI
EI收录号20162302475836
WOS记录号WOS:000373469100041
产权排序1
资助机构Natural Science Foundation of China [61473280, 61102116]
摘要The spectral power distributions (SPD) of outdoor light sources are not constant over time and atmospheric conditions, which causes the appearance variation of a scene and common natural illumination phenomena, such as twilight, shadow, and haze/fog. Calculating the SPD of outdoor light sources at different time (or zenith angles) and under different atmospheric conditions is of interest to physically-based vision. In this paper, for computer vision and its applications, we propose a feasible, simple, and effective SPD calculating method based on analyzing the transmittance functions of absorption and scattering along the path of solar radiation through the atmosphere in the visible spectrum. Compared with previous SPD calculation methods, our model has less parameters and is accurate enough to be directly applied in computer vision. It can be applied in computer vision tasks including spectral inverse calculation, lighting conversion, and shadowed image processing. The experimental results of the applications demonstrate that our calculation methods have practical values in computer vision. It establishes a bridge between image and physical environmental information, e.g., time, location, and weather conditions. (C) 2016 Optical Society of America
语种英语
WOS标题词Science & Technology ; Physical Sciences
WOS类目Optics
关键词[WOS]EARTHS SURFACE ; MIXED REALITY ; MODEL ; PIXEL ; SENSITIVITY
WOS研究方向Optics
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sia.cn/handle/173321/18498
专题机器人学研究室
通讯作者Tian JD(田建东)
作者单位1.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
推荐引用方式
GB/T 7714
Tian JD,Duan ZG,Ren WH,et al. Simple and effective calculations about spectral power distributions of outdoor light sources for computer vision[J]. OPTICS EXPRESS,2016,24(7):7266-7286.
APA Tian JD,Duan ZG,Ren WH,Han Z,&Tang YD.(2016).Simple and effective calculations about spectral power distributions of outdoor light sources for computer vision.OPTICS EXPRESS,24(7),7266-7286.
MLA Tian JD,et al."Simple and effective calculations about spectral power distributions of outdoor light sources for computer vision".OPTICS EXPRESS 24.7(2016):7266-7286.
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