Identification of inner parameters in laser radar measuring system through system error analysis

Du, Zhimin; Zhang, Shujie; Wei, Yongfei; Hong, Maisheng

doi:10.1117/12.807912

Cited by 2 publications

(2 citation statements)

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“…In addition, investigations on the 2D laser scanners were also carried out. A detailed discussion about the deterministic error and random error of a 2D laser radar measurement system (LRMS) was published in [ 12 ]. The qualitative relationships between the error and the error sources, such as the scanning incidence angle and surface roughness, were determined.…”

Section: Introductionmentioning

confidence: 99%

“…They verified that the factors mainly originate from the measurement system itself, the reflectance of the measured surface, and the characteristics of the scanning environment such as temperature and air pressure. All of the above studies [ 12 , 13 , 14 ] provide insights into the factors influencing the accuracy of the data; however, their work can only justify the range performance of the sensor, and they neglected to further investigate the accuracy or uncertainty in real measurement applications. Park et al [ 15 ] proposed a mathematical model of uncertainties in the spatial measurements of visual features using Kinect™ sensors, presenting a quantitative analysis for the utilization of Kinect™ sensors as 3D perception sensors.…”

Section: Introductionmentioning

confidence: 99%

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Error Ellipsoid Analysis for the Diameter Measurement of Cylindroid Components Using a Laser Radar Measurement System

Du¹,

Wu²,

Yang³

2016

Sensors

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The use of three-dimensional (3D) data in the industrial measurement field is becoming increasingly popular because of the rapid development of laser scanning techniques based on the time-of-flight principle. However, the accuracy and uncertainty of these types of measurement methods are seldom investigated. In this study, a mathematical uncertainty evaluation model for the diameter measurement of standard cylindroid components has been proposed and applied to a 3D laser radar measurement system (LRMS). First, a single-point error ellipsoid analysis for the LRMS was established. An error ellipsoid model and algorithm for diameter measurement of cylindroid components was then proposed based on the single-point error ellipsoid. Finally, four experiments were conducted using the LRMS to measure the diameter of a standard cylinder in the laboratory. The experimental results of the uncertainty evaluation consistently matched well with the predictions. The proposed uncertainty evaluation model for cylindrical diameters can provide a reliable method for actual measurements and support further accuracy improvement of the LRMS.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%