scholarly journals Multi-frequency color-marked fringe projection profilometry for fast 3D shape measurement of complex objects

2015 ◽  
Vol 23 (19) ◽  
pp. 24152 ◽  
Author(s):  
Chao Jiang ◽  
Shuhai Jia ◽  
Jun Dong ◽  
Qingchen Bao ◽  
Jia Yang ◽  
...  
Keyword(s):  
Fringe Projection ◽  
Shape Measurement ◽  
Complex Objects ◽  
3D Shape ◽  
3D Shape Measurement ◽  
Fringe Projection Profilometry

Single-shot absolute 3D shape measurement with deep-learning-based color fringe projection profilometry

2020 ◽  
Vol 45 (7) ◽  
pp. 1842 ◽  
Author(s):  
Jiaming Qian ◽  
Shijie Feng ◽  
Yixuan Li ◽  
Tianyang Tao ◽  
Jing Han ◽  
...  
Keyword(s):  
Deep Learning ◽  
Fringe Projection ◽  
Shape Measurement ◽  
Single Shot ◽  
3D Shape ◽  
3D Shape Measurement ◽  
Color Fringe ◽  
Fringe Projection Profilometry

scholarly journals Single-shot 3D shape measurement of discontinuous objects based on a coaxial fringe projection system

2019 ◽  
Vol 58 (5) ◽  
pp. A169 ◽  
Author(s):  
Zhangying Wang ◽  
Zonghua Zhang ◽  
Nan Gao ◽  
Yanjun Xiao ◽  
Feng Gao ◽  
...  
Keyword(s):  
Fringe Projection ◽  
Shape Measurement ◽  
Single Shot ◽  
Projection System ◽  
3D Shape ◽  
3D Shape Measurement

High-resolution sequential thermal fringe projection technique for fast and accurate 3D shape measurement of transparent objects

2021 ◽  
Vol 60 (8) ◽  
pp. 2362
Author(s):  
Martin Landmann ◽  
Henri Speck ◽  
Patrick Dietrich ◽  
Stefan Heist ◽  
Peter Kühmstedt ◽  
...  
Keyword(s):  
High Resolution ◽  
Fringe Projection ◽  
Shape Measurement ◽  
Projection Technique ◽  
3D Shape ◽  
3D Shape Measurement ◽  
Transparent Objects

Fast 3D Shape Measurement of Complex Objects Combining S-transform Profilometry and Sub-Pixel Refinement

2020 ◽  
Author(s):  
Feng Lu ◽  
Jikun Yang
Keyword(s):  
Fringe Pattern ◽  
Vision System ◽  
Phase Unwrapping ◽  
Shape Measurement ◽  
Complex Objects ◽  
3D Shape ◽  
3D Shape Measurement ◽  
Phase Slope ◽  
S Transform ◽  
Hybrid Function

Abstract In the fast 3D shape measurement of complex objects, the process of phase unwrapping affects the measurement accuracy and measurement speed. To omit phase unwrapping, a fast 3D shape measurement method is proposed based on S-transform profilometry and sub-pixel refinement. In this work, Deformed fringe pattern is analyzed based on S-transform to get wrapped phase. To reduce the effect of phase unwrapping, a stereo vision system is employed. Firstly, a deformed fringe pattern is directly used and a hybrid function is proposed to get an initial parallax. Secondly, a phase slope algorithm is proposed to confirm edge point. At last, sub-pixel parallax is refined fromIcoordinate. Experiments are carried out to verify the feasibility and advantage of the proposed method. Results verify that the proposed method can provide fast and accurate 3D shape measurement of complex objects, especially for discontinuous objects and shiny objects.

Modified dual-frequency geometric constraint fringe projection for 3D shape measurement

2020 ◽  
Vol 49 (6) ◽  
pp. 20200049
Author(s):  
王玉伟 Yuwei Wang ◽  
陈向成 Xiangcheng Chen ◽  
王亚军 Yajun Wang
Keyword(s):  
Geometric Constraint ◽  
Fringe Projection ◽  
Shape Measurement ◽  
Dual Frequency ◽  
3D Shape ◽  
3D Shape Measurement

Modified dual-frequency geometric constraint fringe projection for 3D shape measurement

2020 ◽  
Vol 49 (6) ◽  
pp. 20200049
Author(s):  
王玉伟 Yuwei Wang ◽  
陈向成 Xiangcheng Chen ◽  
王亚军 Yajun Wang
Keyword(s):  
Geometric Constraint ◽  
Fringe Projection ◽  
Shape Measurement ◽  
Dual Frequency ◽  
3D Shape ◽  
3D Shape Measurement
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