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《Acta Optica Sinica》 2001-12
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3-D Sensing Using Sinusoidal Fringe Projection and Phase Unwrapping

Kang Xin 1) He Xiaoyuan 1) Quan C 2) 1), Department of Engineering Mechanics, Southeast University, Nanjing 210096 2), Department of Mechanical Engineering, National University of Singapore, Singapore 119260  
With four step phase shifting method the 3 D surface profile of a coin was measured using sinusoidal fringe projection produced by a liquid crystal display (LCD) projector. The phase unwrapping problems are discussed. A new method for detection of the phase discontinuity area and a new technique for phase unwrapping are presented. The experimental results are given.
【Fund】: 国家自然科学基金 (10 0 72 0 17)
【CateGory Index】: TP212
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4 CHEN Fan-xiu1,HE Xiao-yuan2 (1.College of Sciences,Qingdao Technological University,Qingdao 266033,China; 2.Key Laboratory of MEMS of Ministry of Education,Southeast University,Nanjing 210096,China);Application of the Extreme Point Extraction Method for Measuring the Warpage of Mobile-Phone Chip[J];Measurement & Control Technology;2007-09
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