摘要
介绍CCD拼接扫描仪精度高于 0 .2mm时 ,测量镜头畸变带来的扫描误差情况。针对该项误差 ,进行测量、分析、计算 ,得到镜头畸变的规律和函数曲线 ,给出利用函数进行软件校正的思路和方法及基本流程。通过试验证明 ,此方法较好的改善了测量镜头畸变带来的成像误差 。
The paper discusses scanning errors resulting from optical distortion of optical measuring lens in the multi CCD assembly scanner as the accuracy required better than 2mm. By testing and smoothed curve of every camera fitted line of trend's equation, a software for correcting the error is put forward. The results has proved that this method can reduce the error, and make the accuracy better than 2mm.
出处
《光学精密工程》
EI
CAS
CSCD
2001年第3期234-237,共4页
Optics and Precision Engineering
