基于数字图像处理的星体检测技术研究

Star Detection Technique Based on Digital Image Processing

简述了基于CCD器件昼夜星体检测系统的组成和原理,针对影响星体检测精度的关键因素,采用质心法确定恒星位置,较详细分析了提高信噪比的图像处理算法和亚像元定位算法,对以恒星为基准的实时、多参数校正设备实现高精度的测量。

In this paper, the composition and principle of day-night star detection based on CCD device are introduced. It aims at the key factors which influence the star detection accuracy and uses centroid method to confirm the position of star. The image processing algorithm which can improve the signal-to-noise and the subpixel positioning algorithm are particular analyzed. Real-time and multi-parameter correction equipment realizes the high accuracy measurement based on the star.