31 December 2010 Research on 2D laser distance sensor
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Proceedings Volume 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation; 75444Q (2010); doi: 10.1117/12.885560
Event: Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 2010, Hangzhou, China
Abstract
This paper presents the design of the 2D laser distance sensor based on the laser triangulation principle. The hardware structure of the sensor and the signal processing circuit based on DSP and FPGA are designed. A CMOS image sensor is used to grab the laser light image of the laser line on the object. The pixel positions of the laser line in the grabbed image are extracted by image processing methods. In order to improve measuring precision, the geometric distortion of the original image is corrected and the system parameters of the sensor are calibrated. Experimental results demonstrate that the devised sensor can work at high-speed with high precision.
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Jian Ren, Xiao-rong Gao, Jian-ping Peng, Jian-qiang Guo, "Research on 2D laser distance sensor", Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75444Q (31 December 2010); doi: 10.1117/12.885560; http://dx.doi.org/10.1117/12.885560
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KEYWORDS
Digital signal processing

Image processing

Sensors

Image sensors

Calibration

CMOS sensors

Field programmable gate arrays

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