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Method for Horizontal Alignment Deviation Measurement Using Binocular Camera Without Common Target
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DOI：10.1109/ACCESS.2020.3029593.png)
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Abstract
En 中文
In the application of using binocular camera to measure the horizontal alignment deviation, due to the limited field of view of the camera, it is difficult for each camera to obtain all the target points to determine the position of the parts. To this end, a binocular position measurement model, where each optical camera corresponds to one cooperative target point, is established to determine the horizontal alignment deviation between the upper and lower parts. To overcome the problem of insufficient information in calculating the horizontal alignment deviation, the measurement data of a biaxial inclinometer and laser rangefinder are added. The Monte Carlo method is used to determine the error level for any position and attitude in the measurement range based on past work experience. The high accuracy of the position measurement method (the overall error does not exceed 2 mm) for a binocular camera without a common target meets the actual application requirements. This conclusion is verified by the experimental results.
Keywords:
Cameras
Optical variables measurement
Position measurement
Optical devices
Optical imaging
Coordinate measuring machines
Adaptive optics
Binocular position measurement
horizontal alignment deviation
no~common target
biaxial inclinometer
laser ranging
Monte Carlo method
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