A Position and Attitude Measurement Method Based on Laser Displacement Sensor and Infrared Vision Camera

Li, Zhenxing; Pei, Yong-Chen; Qu, Chuan; Yang, Fan

doi:10.1109/tim.2022.3181902

Cited by 5 publications

(3 citation statements)

References 22 publications

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“…At the same time, Li proposed an angle measurement method with the help of an infrared camera and a laser displacement sensor. At a distance of about 300 mm from the origin and within the field of view from −25° to 25°, the indirect measurement error of attitude (direction angle, pitching angle, and rolling angle) is 1.1°, which is a rough measurement within a larger angle range [ 77 ].…”

Section: High-precision With Single Axismentioning

confidence: 99%

A Review: High-Precision Angle Measurement Technologies

Wang,

Ma,

Cao

et al. 2024

Sensors

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Angle measurement is an essential component of precision measurement and serves as a crucial prerequisite for high-end manufacturing. It guides the implementation of precision manufacturing and assembly. The current angle measurement methods mainly focus on multiple axes, high precision, and large measurement ranges. This article introduces the technology of angle measurement from the perspectives of single-axis and multi-axis measurement schemes. Firstly, the single-axis measurement scheme is primarily achieved through optical methods, such as encoder discs that measure energy changes and interferometric phase changes, as well as mechanical, electromagnetic, and inertial angle measurement methods, among which interferometric methods offer the highest accuracy, with high cost, and encoder discs provide the largest measurement range with an ordinary price. Secondly, in the multi-axis measurement scheme, autocollimation instruments, including plane mirrors, gratings, and self-designed targets, are the main options. Although grating encoders can achieve three degrees of freedom in angle measurement with an ordinary price, they are limited in terms of measurement range and sensitivity compared to self-designed targets. Lastly, artificial intelligence assistance precision measurement is increasingly being embraced due to significant advancements in computer performance, making it more convenient to identify the relationship between measured values and detection values. In conclusion, angle measurement plays a crucial role in precision manufacturing, and the evolving and improving technologies provide the manufacturing industry with greater choices. The purpose of this review is to help readers quickly find more suitable technical solutions according to current application requirements, such as single/multiple axes, accuracy level, measuring range, budget, etc.

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Section: High-precision With Single Axismentioning

confidence: 99%

A Review: High-Precision Angle Measurement Technologies

Wang,

Ma,

Cao

et al. 2024

Sensors

View full text Add to dashboard Cite

show abstract

“…The system has simple structure and high accuracy, but it requires a lot of marks on the target in advance, and the operation is complex. Li et al 17 proposed a measurement method based on laser displacement sensor and infrared vision camera. This system can measure the position and orientation of targets under strong light changes, but this method cannot measure high-speed moving targets.…”

Section: Introductionmentioning

confidence: 99%

“…The system has simple structure and high accuracy, but it requires a lot of marks on the target in advance, and the operation is complex. Li et al 17 . proposed a measurement method based on laser displacement sensor and infrared vision camera.…”

Section: Introductionmentioning

confidence: 99%

Velocity measurement of moving target based on rotating mirror high speed camera

Wang,

Dong,

Cheng

et al. 2023

Opt. Eng.

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.A rotating mirror high-speed imaging system can capture and track moving targets, obtaining high-resolution images of targets and it is suitable for capturing high-speed moving targets. Therefore, we propose a target velocity measurement method based on a rotating mirror high-speed camera. Since this system is based on monocular camera capture, traditional binocular vision-based visual velocity measurement methods are no longer applicable. We reconstruct the homography matrix of the plane where the target is located, calculate the virtual difference map of the target’s feature points, and reconstruct the three-dimensional (3D) coordinates of the feature points on the moving target. Then, based on calibration data, the actual 3D coordinates of the target are calculated, and the target’s motion speed is calculated using the frame rate of the camera. This method achieves 3D reconstruction of feature points of moving targets solely based on a monocular perspective and is highly suitable for a rotating camera model, allowing for continuous measurement of the motion speed of the target and observation of speed variations, expanding the range of velocity observation for high-speed moving targets. The experiment shows that this method has the advantages of low requirements for the field, simple construction of experimental equipment, and high robustness. It can still measure the speed of the target with high accuracy under relatively simple conditions. The average relative error of displacement measurement experiment using this method is 2.03%, which shows the feasibility and accuracy of this method. We believe it has significant application value for measuring the speed of high-speed moving targets.

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