中文摘要：

为了使LAMOST（大天区多目标光纤光谱天文望远镜）能够使用前照法检测光纤单元的位置,需要在前照条件下拍摄图片,并提取光斑的位置。在研究光斑提取过程中通过图像边缘检测、动态阈值处理、最小匹配算法等技术,有效地解决了LAMOST前照检测过程中光斑中心无法准确定位、干扰光斑众多、位置随机等不易处理的问题。通过实验证明该检测方法满足LAMOST使用要求。

英文摘要：

It needed that extracting position of light spot which extracted by front illuminate to make sure LAMOST（Large sky area multi-object fiber spectroscopy telescope） can be used.By the methods of Edge detection,Dynamic threshold processing and Minimum matching algorithm problems that being found in matching of front illuminate method such as excessive amounts of light spots,random location,complicated calculations had been solved effectively.