A method to reduce the systematic error of line-structured light sensors based on light plane correction

Changwen Liu; Fajie Duan; Xiao Fu; Shuangzhe Ai; Jiaxin Li; Tianyu Li; Pengwei Han

doi:10.1016/j.optlaseng.2022.107217

A method to reduce the systematic error of line-structured light sensors based on light plane correction

Changwen Liu
, Fajie Duan^*
, Xiao Fu
, Shuangzhe Ai
, Jiaxin Li
, Tianyu Li
, Pengwei Han

^*Corresponding author for this work

Tianjin University

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Line-structured light sensors are widely used in 3-dimentional (3D) reconstruction, however, there are few studies on the systematic error and the correction method. To further improve the measurement accuracy, this paper establishes the systematic error model of the line-structured light sensor, and the distribution function of the systematic error caused by the inaccurate light plane equation is derived. Then, the measurement method of the systematic error is proposed, the distance error and the orientation error of the light plane equation are corrected in two steps according to the distribution characteristics of the systematic error. The experimental results show that the systematic error of the sensor is reduced by at least 80% after correction. This method effectively reduces the systematic error of the line-structured light sensor and has good robustness.

Original language	English
Article number	107217
Journal	Optics and Lasers in Engineering
Volume	159
DOIs	https://doi.org/10.1016/j.optlaseng.2022.107217
State	Published - Dec 2022
Externally published	Yes

Keywords

Light plane correction
Line-structured light sensors
Machine vision
Systematic error model

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10.1016/j.optlaseng.2022.107217

Cite this

@article{68473e9e55714bda8d857e71d6417fe2,

title = "A method to reduce the systematic error of line-structured light sensors based on light plane correction",

abstract = "Line-structured light sensors are widely used in 3-dimentional (3D) reconstruction, however, there are few studies on the systematic error and the correction method. To further improve the measurement accuracy, this paper establishes the systematic error model of the line-structured light sensor, and the distribution function of the systematic error caused by the inaccurate light plane equation is derived. Then, the measurement method of the systematic error is proposed, the distance error and the orientation error of the light plane equation are corrected in two steps according to the distribution characteristics of the systematic error. The experimental results show that the systematic error of the sensor is reduced by at least 80\% after correction. This method effectively reduces the systematic error of the line-structured light sensor and has good robustness.",

keywords = "Light plane correction, Line-structured light sensors, Machine vision, Systematic error model",

author = "Changwen Liu and Fajie Duan and Xiao Fu and Shuangzhe Ai and Jiaxin Li and Tianyu Li and Pengwei Han",

note = "Publisher Copyright: {\textcopyright} 2022",

year = "2022",

month = dec,

doi = "10.1016/j.optlaseng.2022.107217",

language = "英语",

volume = "159",

journal = "Optics and Lasers in Engineering",

issn = "0143-8166",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - A method to reduce the systematic error of line-structured light sensors based on light plane correction

AU - Liu, Changwen

AU - Duan, Fajie

AU - Fu, Xiao

AU - Ai, Shuangzhe

AU - Li, Jiaxin

AU - Li, Tianyu

AU - Han, Pengwei

PY - 2022/12

Y1 - 2022/12

N2 - Line-structured light sensors are widely used in 3-dimentional (3D) reconstruction, however, there are few studies on the systematic error and the correction method. To further improve the measurement accuracy, this paper establishes the systematic error model of the line-structured light sensor, and the distribution function of the systematic error caused by the inaccurate light plane equation is derived. Then, the measurement method of the systematic error is proposed, the distance error and the orientation error of the light plane equation are corrected in two steps according to the distribution characteristics of the systematic error. The experimental results show that the systematic error of the sensor is reduced by at least 80% after correction. This method effectively reduces the systematic error of the line-structured light sensor and has good robustness.

AB - Line-structured light sensors are widely used in 3-dimentional (3D) reconstruction, however, there are few studies on the systematic error and the correction method. To further improve the measurement accuracy, this paper establishes the systematic error model of the line-structured light sensor, and the distribution function of the systematic error caused by the inaccurate light plane equation is derived. Then, the measurement method of the systematic error is proposed, the distance error and the orientation error of the light plane equation are corrected in two steps according to the distribution characteristics of the systematic error. The experimental results show that the systematic error of the sensor is reduced by at least 80% after correction. This method effectively reduces the systematic error of the line-structured light sensor and has good robustness.

KW - Light plane correction

KW - Line-structured light sensors

KW - Machine vision

KW - Systematic error model

UR - https://www.scopus.com/pages/publications/85136115801

U2 - 10.1016/j.optlaseng.2022.107217

DO - 10.1016/j.optlaseng.2022.107217

M3 - 文章

AN - SCOPUS:85136115801

SN - 0143-8166

VL - 159

JO - Optics and Lasers in Engineering

JF - Optics and Lasers in Engineering

M1 - 107217

ER -

A method to reduce the systematic error of line-structured light sensors based on light plane correction

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Keywords

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