气候变化领域集成服务门户(CCPortal): Complex object 3D measurement based on phase-shifting and a neural network

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DOI	10.1016/j.optcom.2009.04.055
	Complex object 3D measurement based on phase-shifting and a neural network
	Li Zhong-wei; Shi Yu-sheng; Wang Cong-jun; Qin Da-hui; Huang Kui
发表日期	2009
ISSN	0030-4018
起始页码	2699
结束页码	2706
卷号	282 期号:14
英文摘要	An accurate phase-height mapping algorithm based on phase-shifting and a neural network is proposed to improve the performance of the structured light system with digital fringe projection. As phase-height mapping is nonlinear, it is difficult to find the best camera model for the system. In order to achieve high accuracy, a trained three-layer back propagation neural network is employed to obtain the complicated transformation. The phase error caused by the non-sinusoidal attribute of the fringe image is analyzed. During the phase calculation process, a pre-calibrated phase error look-up-table is used to reduce the phase error. The detailed procedures of the sample data collection are described. By training the network, the relationship between the image coordinates and the 3D coordinates of the object can be obtained. Experimental results demonstrate that the proposed method is not sensitive to the non-sinusoidal attribute of the fringe image and it can recover complex free-form objects with high accuracy. (C) 2009 Elsevier B.V. All rights reserved.
英文关键词	3D measurement; Phase-height mapping; Phase-shifting; Neural network
WOS研究方向	Optics
WOS类目	Optics
来源期刊	OPTICS COMMUNICATIONS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158666
作者单位	Li, ZW (corresponding author), Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China.
推荐引用方式 GB/T 7714	Li Zhong-wei,Shi Yu-sheng,Wang Cong-jun,et al. Complex object 3D measurement based on phase-shifting and a neural network[J],2009,282(14).
APA	Li Zhong-wei,Shi Yu-sheng,Wang Cong-jun,Qin Da-hui,&Huang Kui.(2009).Complex object 3D measurement based on phase-shifting and a neural network.OPTICS COMMUNICATIONS,282(14).
MLA	Li Zhong-wei,et al."Complex object 3D measurement based on phase-shifting and a neural network".OPTICS COMMUNICATIONS 282.14(2009).