运动模糊图像恢复技术在恒星导航图像预处理过程中的应用

在恒星导航的过程中,无论是利用可见光CCD阵列成像还是利用新兴的近红外探测望远镜进行对星空的拍摄,由于成像面的一个持续曝光时间,在这个过程中飞行器的快速运动都会造成星空图像拍摄的运动拖影模糊,这就给恒星导航系统后续的图像识别和导航定位造成过大误差,使定位精度受到严重影响。为解决这个问题,以星敏感器拍摄到的图像为依据,利用维纳滤波和radon变换对运动模糊图像进行了模糊程度判断和模糊修正的研究,达到了较好的效果,为后续导航工作奠定了较好的基础。

Application of Motion-blur Image Restoration Technology in Star Navigation Image Preprocessing

During the process of star navigation, CCD imaging device or infrared imaging device is often used to detect the sky. Due to the continuance exposure time, the star image is always much blur for the fast motion of aerocrafl, which will cause great error for image identification and navigation. For solving the problem, Wiener fliter and Radon transform was used to judge and resume the blur image. Good effects were obtained, which provide sound base further star navigation.