Coherent digital demodulation of single-camera N-projections for 3D-object shape measurement: Co-phased profilometry

被引：20

作者：

Servin, M. ^{[1
]}

Garnica, G. ^{[1
]}

Estrada, J. C. ^{[1
]}

Quiroga, A. ^{[2
]}

机构：

[1] Ctr Invest Opt AC, Leon Guanajuato 37150, Mexico

[2] Univ Complutense Madrid, Fac Ciencias Fis, Opt Dept, E-28040 Madrid, Spain

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 21期

关键词：

D O I：

10.1364/OE.21.024873

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Fringe projection profilometry is a well-known technique to digitize 3-dimensional (3D) objects and it is widely used in robotic vision and industrial inspection. Probably the single most important problem in single-camera, single-projection profilometry are the shadows and specular reflections generated by the 3D object under analysis. Here a single-camera along with N-fringe-projections is (digital) coherent demodulated in a single-step, solving the shadows and specular reflections problem. Co-phased profilometry coherently phase-demodulates a whole set of N-fringe-pattern perspectives in a single demodulation and unwrapping process. The mathematical theory behind digital co-phasing N-fringe-patterns is mathematically similar to co-phasing a segmented N-mirror telescope. (C) 2013 Optical Society of America

引用

页码：24873 / 24878

页数：6

共 9 条

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[2]

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