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Spatial computer-generated Moire profilometry

delete2024-03-01
delete9
PRE
AI
H
Hechen Zhang
Y
Yiping Cao *
H
Hongmei Li
H
Haihua An
H
Haitao Wu
DOI:10.1016/j.sna.2024.115054delete
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摘要

摘要

En 中文
In three-dimensional(3D) sensing technology based on Moire ' profilometry, the extraction of Moire ' fringes relying on spectrum-domain filtering operation will cause the height information loss. To solve the problem, a spatial computer-generated Moire ' profilometry(SCGMP) is developed for the first time. SCGMP employs only two complementary sinusoidal deformed stripes, and extracts the alternating current(AC) component and the background component by average difference. Normalizing the AC component avoids the influence of nonuniform reflectivity, and also makes it possible to extract Moire ' fringe in spatial-domain. Hilbert transform gives another pi/2 phase-shifted normalized AC component. By the spatial-domain Moire ' fringe extraction algorithm instead of spectrum-domain filtering, the approach ensures pure extraction of two orthogonal Moire ' fringes. Experimental results demonstrate SCGMP has better accuracy and adaptability than two-shot high-accuracy computer-generated Moire ' profilometry and Fourier transform profilometry. And its two-shot nature enables real -time 3D sensing capability.
Keyword:
3D sensing
Moire ' profilometry
Spatial Moire ' fringe extraction
Computer-generated Moire ' profilometry
Phase resolution

期刊

Sensors and Actuators A-Physical 封面图
Sensors and Actuators A-Physical
IF:
4.9
论文数:
1.5W
被引数:
3.3W

机构

S
sichuan university
学者数:
12.1W
论文数: 7.8W
被引数: 100
C
chengdu normal university
学者数:
730
论文数: 549
被引数: 23
引用论文

引用论文

Heterodyne moire surface profilometry
err2014-01-31
err11
errOAAI
errChang, Wei-Yao; Hsu, Fan-Hsi; Chen, Kun-Huang; Chen, Jing-Heng; Hsu, Ken Y.
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Computer-generated Moire profilometry
err2017-10-18
err62
errOAAI
errLi, Chengmeng; Cao, Yiping; Chen, Cheng; Wan, Yingying; Fu, Guangkai; Wang, Yapin
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err分享
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High-accuracy 3D shape measurement of translucent objects by fringe projection profilometry
err2019-06-17
err27
errOAAI
errXu, Yang; Zhao, Huijie; Jiang, Hongzhi; Li, Xudong
err分享
err收藏
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