Color-fringe pattern profilometry using a generalized phase-shifting algorithm

被引:55
作者
Flores, Jorge L. [1 ]
Ferrari, Jose A. [2 ]
Garcia Torales, G. [1 ]
Legarda-Saenz, Ricardo [3 ]
Silva, Adriana [1 ]
机构
[1] Univ Guadalajara, Dept Elect, Guadalajara 44840, Jalisco, Mexico
[2] Fac Ingn, Inst Fis, Montevideo 11300, Uruguay
[3] Univ Autonoma Yucatan, Fac Matemat, Merida 97110, Yucatan, Mexico
关键词
ERROR-CORRECTION; GAMMA-CORRECTION; BINARY FRINGES; INTERFEROMETRY; EXTRACTION;
D O I
10.1364/AO.54.008827
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In order to overcome the limitations of the sequential phase-shifting fringe pattern profilometry for dynamic measurements, a color-channel-based approach is presented. The proposed technique consists of projecting and acquiring a colored image formed by three sinusoidal phase-shifted patterns. Therefore, by using the conventional three-step phase-shifting algorithm, only one color image is required for phase retrieval each time. However, the use of colored fringe patterns leads to a major problem, the color crosstalk, which introduces phase errors when conventional phase-shifting algorithms with fixed phase-shift values are utilized to retrieve the phase. To overcome the crosstalk issue, we propose the use of a generalized phase-shifting algorithm with arbitrary phase-shift values. The simulations and experimental results show that the proposed algorithm can significantly reduce the influence of the color crosstalk. (C) 2015 Optical Society of America
引用
收藏
页码:8827 / 8834
页数:8
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