摘要
针对激光振镜扫描系统的图形失真,讨论了失真产生的原因,对枕形失真的产生给出了推导过程。分析了现在常用的二次曲线及平面坐标变换的校正方法原理,提出了用角度误差补偿给扫描角度的算法。分析结果证明此方法与点坐标补偿的算法结果是一致的,且此方法适用于激光雷达扫描成像系统。
According to the graphic distortion of the laser galvanom,the reasons of distortion are discussed and the pincushion distortion is derived.A kind of conic calibration model and a kind of calibration model of graphic distortion in common is analysed.A algorithm based on compensating angle error to scanning angle is proposed.The result which proved the consistence comparing with point coordinates compensation methods is appropriate for the lidar scanning imaging system.
出处
《长春理工大学学报（自然科学版）》
2012年第4期63-65,75,共4页
Journal of Changchun University of Science and Technology(Natural Science Edition)
关键词
振镜扫描
失真
二次曲线
坐标变换
角度补偿
Key wods：galvanom scanning
distortion quafric curve
coordinate transformation
angle compensation
