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Nanoscale depth reconstruction from defocus: Within an optical diffraction model
Wei YJ(魏阳杰); Wu CD(吴成东); Dong ZL(董再励)
Department机器人学研究室
Source PublicationOptics Express
ISSN1094-4087
2014
Volume22Issue:21Pages:25481-25493
Indexed BySCI ; EI
EI Accession number20144400144831
WOS IDWOS:000344004600084
Contribution Rank2
AbstractDepth from defocus (DFD) based on optical methods is an effective method for depth reconstruction from 2D optical images. However, due to optical diffraction, optical path deviation occurs, which results in blurring imaging. Blurring, in turn, results in inaccurate depth reconstructions using DFD. In this paper, a nanoscale depth reconstruction method using defocus with optical diffraction is proposed. A blurring model is proposed by considering optical diffraction, leading to a much higher accuracy in depth reconstruction. Firstly, Fresnel diffraction in an optical system is analyzed, and a relationship between intensity distribution and depth information is developed. Secondly, a blurring imaging model with relative blurring and heat diffusion is developed through curving fitting of a numerical model. In this way, a new DFD method with optical diffraction is proposed. Finally, experimental results show that this new algorithm is more effective for depth reconstruction on the nanoscale.
Language英语
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectOptics
WOS KeywordSHAPE
WOS Research AreaOptics
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Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/15282
Collection机器人学研究室
Corresponding AuthorWei YJ(魏阳杰)
Affiliation1.College of Information Science and Engineering, Northeastern University, Wenhua Str.3, Shenyang, 110004, China
2.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Science, Nanta Str.114, Shenyang, 110014, China
Recommended Citation
GB/T 7714
Wei YJ,Wu CD,Dong ZL. Nanoscale depth reconstruction from defocus: Within an optical diffraction model[J]. Optics Express,2014,22(21):25481-25493.
APA Wei YJ,Wu CD,&Dong ZL.(2014).Nanoscale depth reconstruction from defocus: Within an optical diffraction model.Optics Express,22(21),25481-25493.
MLA Wei YJ,et al."Nanoscale depth reconstruction from defocus: Within an optical diffraction model".Optics Express 22.21(2014):25481-25493.
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