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题名: Three-dimensional surface imaging by multi-frequency phase shift profilometry with angle and pattern modeling for system calibration
作者: Wang ZZ(王振洲)
作者部门: 机器人学研究室
关键词: modeling ; phase shift profilometry ; 3D measurement ; instrumentation
刊名: Measurement Science and Technology
ISSN号: 0957-0233
出版日期: 2016
卷号: 27, 期号:8, 页码:1-9
收录类别: SCI ; EI
产权排序: 1
摘要: In this paper, we present a 3D surface imaging system based on the well-known phase shift profilometry. To yield the analytical solutions, four shifted phases and three high carrier frequencies are used to compute the phase map and reduce the noises that are caused by the inherent optical aberrations and external influences, e.g. different illumination light sources, uneven intensity distribution and automatic image processing algorithms. To reduce the system noise, we propose to model the pattern of the calibration grid in a virtual space. To obtain the modeled pattern, we use a plane to intercept the rays that are modeled by the proposed angle modeling method. In the world coordinate system, the angle and the pattern are computed based on the calibration data. A registration method is used to transform the modeled pattern in the virtual space to the ideal pattern in the world coordinate system by computing the least squared errors between the true points in the modeled pattern and the measured points in the practical pattern. The modeled (true) points are used for re-calibration of the 3D imaging system. Experimental results showed that the measurement accuracy increases considerably and the MSE is reduced from 0.95 mm to 0.65 mm (32% average error decrease) after replacing the measured points with the true points for calibration.
语种: 英语
WOS记录号: WOS:000380124800032
WOS标题词: Science & Technology ; Technology
类目[WOS]: Engineering, Multidisciplinary ; Instruments & Instrumentation
关键词[WOS]: CAMERA CALIBRATION ; SPECULAR SURFACES ; PROJECTION ; STEREO ; MICROSCOPY ; NOISE
研究领域[WOS]: Engineering ; Instruments & Instrumentation
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内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/18829
Appears in Collections:机器人学研究室_期刊论文

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Recommended Citation:
Wang ZZ. Three-dimensional surface imaging by multi-frequency phase shift profilometry with angle and pattern modeling for system calibration[J]. Measurement Science and Technology,2016,27(8):1-9.
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文件名: Three-dimensional surface imaging by multi-frequency phase shift profilometry with angle and pattern modeling for system calibration.pdf
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