Improving the Accuracy of Robot-based Measuring System by Calibrating Laser-stripe Scanner Model and Hand-to-Scanner Transformation

摘要

This paper focuses on the system for object inspection by use of a laser stripe scanner and an industrial robot.In order to ensure the precision of the scanning system,a one-stage calibration method is proposed.This scheme mainly utilizes a circular-marked board as calibration target and calibrated the scanner model and hand-to-scanner transformation simultaneously using the same reference points.Therefore the influences of the scanner calibration error on the hand-to-scanner calibration can be eliminated naturedly.Finally,some experimental results are reported and analyzed.