An Accurate Calibration Technique for 3â€"D Laser Stripe Sensors

Marianne Chiarella; Kenneth A. Pietrzak

doi:10.1117/12.969850

1 April 1990 An Accurate Calibration Technique for 3-D Laser Stripe Sensors

Marianne Chiarella, Kenneth A. Pietrzak

Proceedings Volume 1194, Optics, Illumination, and Image Sensing for Machine Vision IV; (1990) https://doi.org/10.1117/12.969850
Event: 1989 Symposium on Visual Communications, Image Processing, and Intelligent Robotics Systems, 1989, Philadelphia, PA, United States

Abstract

Laser stripe sensors are being used in a variety of industrial applications including part inspection, process control, and robot guidance. Certain characteristics of the sensor such as standoff and field of view are likely to change from one application to the next. The paper describes an approach to laser stripe sensor calibration when the sensor is composed of off-the-shelf equipment. Sensor dimensions such as the position of the laser in relation to the camera and particular lens characteristics such as focal length and distortion are treated as unknown parameters in the calibration procedure presented here. The paper shows that high accuracy is attainable in range measurements acquired with off-the-shelf components and proper calibration.

Citation Download Citation

Marianne Chiarella and Kenneth A. Pietrzak "An Accurate Calibration Technique for 3-D Laser Stripe Sensors", Proc. SPIE 1194, Optics, Illumination, and Image Sensing for Machine Vision IV, (1 April 1990); https://doi.org/10.1117/12.969850

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