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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)
作者部门机器人学研究室
发表期刊Optics Express
ISSN1094-4087
2014
卷号22期号:21页码:25481-25493
收录类别SCI ; EI
EI收录号20144400144831
WOS记录号WOS:000344004600084
产权排序2
摘要Depth 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.
语种英语
WOS标题词Science & Technology ; Physical Sciences
WOS类目Optics
关键词[WOS]SHAPE
WOS研究方向Optics
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文献类型期刊论文
条目标识符http://ir.sia.cn/handle/173321/15282
专题机器人学研究室
通讯作者Wei YJ(魏阳杰)
作者单位1.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
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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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