摘要
根据Hartman传感器探测人眼波像差时的光斑特点,提出了模板匹配法选取光斑窗口的质心探测方法。本方法与Prieto的质心探测方法相比,提高了质心探测精度。对光斑阵列的仿真计算结果表明,用本文提出的方法质心探测误差的rms值降低了53.7%。另外,本方法还避免了Prieto方法中多次迭代的质心计算,减少了运算量。
The method of Prietos progressively reducing window size was analysed,and the template matching method was suggested according to the feature of the light spots of Hartman sensor.With template matching,the accuracy of centroid detection is improved.The computer simulation of the centroid calculations of spot array shows that the centroids rms error can decrease by 53.7 %.In addition,template matching method avoides iterative centroid calculations,and so reduces computer time consuming.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2002年第11期1148-1151,共4页
Journal of Optoelectronics·Laser
基金
天津市光电联合科学研究中心资助项目(60177006)
