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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)
Department机器人学研究室
Source PublicationOPTICS EXPRESS
ISSN1094-4087
2016
Volume24Issue:7Pages:7266-7286
Indexed BySCI ; EI
EI Accession number20162302475836
WOS IDWOS:000373469100041
Contribution Rank1
Funding OrganizationNatural Science Foundation of China [61473280, 61102116]
AbstractThe 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
Language英语
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectOptics
WOS KeywordEARTHS SURFACE ; MIXED REALITY ; MODEL ; PIXEL ; SENSITIVITY
WOS Research AreaOptics
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/18498
Collection机器人学研究室
Corresponding AuthorTian JD(田建东)
Affiliation1.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
Recommended Citation
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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