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基于遗传算法的激光扫描仪误差标定研究
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黑龙江省自然科学基金(E201013)


Research on Error Calibration of Laser Scanner Based on Genetic Algorithm
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    摘要:

    采用平面二维球列对激光扫描仪误差进行标定,为提高标定精度,在Matlab环境下利用遗传算法对扫描所得球列点云数据进行了优化处理,以球心3个坐标为优化变量,以球面点云的各点到待求球心的距离与钢球标称半径的差值的标准差最小化为优化目标,采用SGA算法优化得到各个钢球的最优球心坐标,再与由超精密仪器得到的孔板圆孔中心坐标比较计算得到各点误差,实现对扫描系统的标定。实验表明:该标定方法合理可行,标定结果较为精确。

    Abstract:

    The planar two dimensinal ball array was used to calibrate the laser scanner error. To improve the calibration precision, Genetic algorithm was used to optimize the scanned point cloud data under Matlab software environment. The three coordinates of the ball center were taken as the optimization variables, and the standard deviation of the difference between the distances from every pints to the solving ball center and the nominal radius of the ball was taken as the optimization objective. The optimal ball center coordinates were obtained with SGA algorithm and compared with the hole center coordinates of the plate which were measured by the ultra precision instrument. The errors of every points was obtained by the comparison and computing and the calibration was completed. Experiments show the proposed method is rational and feasible with accurate calibration results.

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赵强,覃遵涛.基于遗传算法的激光扫描仪误差标定研究[J].机床与液压,2015,43(15):98-101.
. Research on Error Calibration of Laser Scanner Based on Genetic Algorithm[J]. Machine Tool & Hydraulics,2015,43(15):98-101

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  • 在线发布日期: 2015-11-24
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