An Active Structured Light 3D Point Cloud Measurement for Orange Shape Based On Adaptive Co-Opposite-Direction Slicing Method

Hui Chen; Hongyan Wu; Ning Yang; Heping Huang; Weibin Liang

doi:10.3788/LOP221279

Laser & Optoelectronics Progress, Volume. 60, Issue 9, 0928003(2023)

An Active Structured Light 3D Point Cloud Measurement for Orange Shape Based On Adaptive Co-Opposite-Direction Slicing Method

Hui Chen^1、*, Hongyan Wu¹, Ning Yang¹, Heping Huang², and Weibin Liang³

Author Affiliations

¹College of Automatic Engineering, Shanghai University of Electric Power, Shanghai 200090, China

²Zhengtai Instrument (Hangzhou) Co., Ltd., Hangzhou 310052, Zhejiang, China

³Shanghai Enflame Technology Co., Ltd., Shanghai 201203, China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(15)

Fig. 1. 3D measurement frame diagram of orange based on adaptive co-opposite-direction slicing method

Download full size

Fig. 2. Point cloud data acquisition system

Download full size

Fig. 3. Complete point cloud model of registered oranges in different coordinate systems

Download full size

Fig. 4. Height and diameter of the orange simulation model

Download full size

Fig. 5. Schematic of positive and opposite cutting of orange model. (a) Slicing from top to bottom; (b) slicing from bottom to top

Download full size

Fig. 6. Schematic diagram of k-nearest neighbor concave hull algorithm (k=3)

Download full size

Fig. 7. Adaptive slicing of point cloud

Download full size

Fig. 8. Pictures of the orange. (a) Simulation model; (b) real orange

Download full size

Fig. 9. Measurement of shape index of the orange. (a) Height; (b) D₁; (c) D₂; (d) volume

Download full size

Fig. 10. Relative error of the orange shape index

Download full size

Fig. 11. Calculation results of orange shape indexes under Ⅰ and Ⅱ. (a) Height; (b) D₁; (c) D₂; (d) volume

Download full size

Table 1. Materials needed for experiments
View table
Table 1. Materials needed for experiments
Name Precision Range Number
Vernier caliper 0.01 mm 150 mm 1
Beaker 1 mL 1000 mL 2
Graduated cylinder 1 mL 500，1000 mL 2
Iron stick - - 1

Table 2. Measurement result of the orange simulation model appearance indicators
View table
Table 2. Measurement result of the orange simulation model appearance indicators
Parameter Height /mm D₁ /mm D₂ /mm Volume /mL
Calculated value 80.71 81.51 81.71 247.89
RE /% 0.21 0.89 1.89 2.14

Table 3. Measurement results of orange shape parameters

View table

Table 3. Measurement results of orange shape parameters

Dataset

Height

D₁

D₂

Volume

R²

RMSE /mm

ME /mm

T /s

R²

RMSE /mm

ME /mm

T /s

R²

RMSE /mm

ME /mm

T /s

R²

RMSE /mm

ME /mm

T /s

Ⅰ

Ⅱ

0.980

1.210

1.215

0.115

0.974

1.265

1.203

0.115

0.970

1.308

1.399

0.115

0.987

5.537

3.944

7.826

0.979

1.213

1.242

0.122

0.976

1.258

1.387

0.122

0.968

1.313

1.374

0.122

0.979

7.223

4.245

8.354

Table 4. Measurement error comparison of orange shape parameters under different methods

View table

Table 4. Measurement error comparison of orange shape parameters under different methods

Dataset

Method

Height

D₁

D₂

Volume

R²

RMSE /mm

R²

RMSE /mm

R²

RMSE /mm

R²

RMSE /mm

Ⅰ

Ref.［8］

Ref.［29］

Ref.［7］

Proposed

0.919

0.945

0.980

1.908

1.466

1.210

0.965

0.945

0.974

1.262

1.462

1.265

0.927

0.945

0.970

1.805

1.466

1.308

0.951

0.988

0.987

5.856

5.534

5.537

Ⅱ

Ref.［8］

Ref.［29］

Ref.［7］

Proposed

0.918

0.948

0.979

1.907

1.462

1.213

0.962

0.948

0.976

1.260

1.462

1.258

0.930

0.948

0.968

1.822

1.462

1.313

0.945

0.974

0.979

5.904

5.499

7.223

Tools

Get Citation

Copy Citation Text

Hui Chen, Hongyan Wu, Ning Yang, Heping Huang, Weibin Liang. An Active Structured Light 3D Point Cloud Measurement for Orange Shape Based On Adaptive Co-Opposite-Direction Slicing Method[J]. Laser & Optoelectronics Progress, 2023, 60(9): 0928003

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites

Paper Information

Category: Remote Sensing and Sensors

Received: Apr. 12, 2022

Accepted: May. 9, 2022

Published Online: May. 9, 2023

The Author Email: Chen Hui (chenhui@shiep.edu.cn)

DOI:10.3788/LOP221279

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Materials needed for experiments

Table 1. Materials needed for experiments

Table 2. Measurement result of the orange simulation model appearance indicators

Table 2. Measurement result of the orange simulation model appearance indicators

Table 3. Measurement results of orange shape parameters

Table 3. Measurement results of orange shape parameters

Table 4. Measurement error comparison of orange shape parameters under different methods

Table 4. Measurement error comparison of orange shape parameters under different methods