An absolute phase technique for 3D profile measurement using four-step structured light pattern

CASIA OpenIR > 智能制造技术与系统研究中心 > 多维数据分析（彭思龙）-技术团队

	An absolute phase technique for 3D profile measurement using four-step structured light pattern
	Xu, Jing 1,2; Liu, Shaoli 1; Wan, An 1; Gao, Bingtuan 3; Yi, Qiang 1; Zhao, Danpu 4; Luo, Ruikun 1; Chen, Ken 1
发表期刊	OPTICS AND LASERS IN ENGINEERING
	2012-09-01
卷号	50 期号:9 页码:1274-1280
文章类型	Article
摘要	The aim of this paper is to develop a four-step pattern encoding strategy through the combination of a triangle waveform, a step waveform, and two square waveforms. The proposed pattern encoding strategy makes the range of unique phase distribution up to 10 pi, which is 5 times as large as 2 pi of conventional four-step phase shifting encoding approach. Therefore, the proposed encoding strategy enables the structured light-based measurement system to measure complicated objects without ambiguity, which is the common limitation of the phase shifting algorithms. Furthermore, the proposed strategy is a pixel-level method, leading to a high-density 3D reconstruction. The decoding approach is a pixel independent computation, which can eliminate the error propagation and enhance the reliability. The phase errors between the phase shifting and the proposed encoding strategy are compared by the numerical simulation and they are very close. Experiments with different objects are carried out to validate the robustness and accuracy for the proposed encoding strategy. The results show that it is efficient for the 3D reconstruction of complicated objects. (C) 2012 Elsevier Ltd. All rights reserved.
关键词	Structured Light Relative Phase Absolute Phase
WOS标题词	Science & Technology ; Physical Sciences
关键词[WOS]	SHAPE MEASUREMENT ; COMPENSATION ; PROFILOMETRY
收录类别	SCI
语种	英语
WOS研究方向	Optics
WOS类目	Optics
WOS记录号	WOS:000305773200012
引用统计	被引频次：32[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/10744
专题	智能制造技术与系统研究中心_多维数据分析（彭思龙）-技术团队
作者单位	1.Tsinghua Univ, Dept Precis Instruments & Mechanol, Beijing 100084, Peoples R China 2.Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China 3.Southeast Univ, Sch Elect & Engn, Nanjing 210096, Peoples R China 4.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Xu, Jing,Liu, Shaoli,Wan, An,et al. An absolute phase technique for 3D profile measurement using four-step structured light pattern[J]. OPTICS AND LASERS IN ENGINEERING,2012,50(9):1274-1280.
APA	Xu, Jing.,Liu, Shaoli.,Wan, An.,Gao, Bingtuan.,Yi, Qiang.,...&Chen, Ken.(2012).An absolute phase technique for 3D profile measurement using four-step structured light pattern.OPTICS AND LASERS IN ENGINEERING,50(9),1274-1280.
MLA	Xu, Jing,et al."An absolute phase technique for 3D profile measurement using four-step structured light pattern".OPTICS AND LASERS IN ENGINEERING 50.9(2012):1274-1280.