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Low cost structured-light based 3D surface reconstruction

Yijun Yan
Yijun Yan
, 
Maher Assaad
Maher Assaad
, 
Jaime Zabalza
Jaime Zabalza
, 
Jinchang Ren
Jinchang Ren
 oraz 
Huimin Zhao
Huimin Zhao
   | 23 kwi 2019
International Journal on Smart Sensing and Intelligent Systems's Cover Image
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Article Category: research-article
Data publikacji: 23 kwi 2019
Zakres stron: 1 - 11
Otrzymano: 28 sty 2019
DOI: https://doi.org/10.21307/ijssis-2019-002
Słowa kluczowe
© 2019 Yijun Yan et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1:

Examples of surface classes: (A) smooth without slope, (B) smooth with some slope, and (C) with both slope and roughness/texture.
Examples of surface classes: (A) smooth without slope, (B) smooth with some slope, and (C) with both slope and roughness/texture.

Figure 2:

The principle of data acquisition; working with laser-projected images (left side) to extract a surface profile along x-axis (right side).
The principle of data acquisition; working with laser-projected images (left side) to extract a surface profile along x-axis (right side).

Figure 3:

Basic image processing workflow for the proposed system; difference between test and reference images plus binarization (left side), where the extracted laser provides the surface 1D profile.
Basic image processing workflow for the proposed system; difference between test and reference images plus binarization (left side), where the extracted laser provides the surface 1D profile.

Figure 4:

The experimental setup of our surface level measurement system.
The experimental setup of our surface level measurement system.

Figure 5:

2D scanning system with a linear actuator; 2D map is obtained from attaching 1D profiles, where the laser line is highlighted in a dashed rectangle.
2D scanning system with a linear actuator; 2D map is obtained from attaching 1D profiles, where the laser line is highlighted in a dashed rectangle.

Figure 6:

The experimental results for a simple surface (woody wedge), including (A) test image with projected laser line, and (B) obtained levelness H(x) from the wedge sample.
The experimental results for a simple surface (woody wedge), including (A) test image with projected laser line, and (B) obtained levelness H(x) from the wedge sample.

Figure 7:

The experimental results for a complex surface (robot toy), including test image with projected laser line (first row), and obtained levelness H(x) from the sample (second row). Working distance is 25 cm, and the sample is placed horizontally and vertically.
The experimental results for a complex surface (robot toy), including test image with projected laser line (first row), and obtained levelness H(x) from the sample (second row). Working distance is 25 cm, and the sample is placed horizontally and vertically.

Figure 8:

Real image (top) and obtained 2D levelness maps (bottom) from the surface of two samples (cap A and cap B). The levelness H(x,y) is measured by the color bar in mm.
Real image (top) and obtained 2D levelness maps (bottom) from the surface of two samples (cap A and cap B). The levelness H(x,y) is measured by the color bar in mm.

Evaluated cases for complex surface measurement with vertical layout.

Vertical layout
Dist. Images 1D Profile H(x) MSE
19 cm 0.366
22 cm 0.209
25 cm 0.220
28 cm 0.073
31 cm 0.161
Mean square error (MSE) 0.206

Evaluated cases for complex surface measurement with horizontal layout.

Horizontal layout
Dist. Images 1D Profile H(x) MSE
19 cm 0.427
22 cm 0.457
25 cm 0.366
28 cm 0.375
31 cm 0.014
Mean square error (MSE) 0.328

Comparison of 3D surface reconstruction techniques.

Time of flight Stereo vision Optical fiber Structure light
Working distance Long Medium Short Short–medium
Vision field Medium Lenses dependent Narrow Medium
Cost High Medium Medium Low
Power Low Low Low Low
Accuracy Medium Medium High Medium
Speed Fast Fast Slow Medium
eISSN:
1178-5608
Język:
Angielski
Częstotliwość wydawania:
Volume Open
Dziedziny czasopisma:
Engineering, Introductions and Overviews, other
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