测绘科学技术学报2017，Vol.34Issue(5)：461-465,5.DOI:10.3969/j.issn.1673-6338.2017.05.005
一种能适应月相变化的月球图像中心提取算法
A Moon Image Center Extraction Algorithm Adapted to Moon Phase Change
摘要
Abstract
Moon is the brightest celestial body at night.Navigation depending on the moon measurement can effectively compensate for the traditional astronomical navigation mode in which only stars are observed.It can expand the available range of astronomical navigation,especially in the cloudy weather condition at night.To realize moonobserving navigation,a lunar sensor image center extraction algorithm adapted to moon phase change is proposed in this paper.The Sobel-Zernike moment operator is used to detect the edge of the image,and the searching algorithm based on circularity detection is used to find the moon edge points for extracting the moon center.A semi-physical simulation experiment is conducted,in which moon centers of different moon phase images are effectively extracted and the internal average accuracy is 0.16 pixels,the external average accuracy is 2.86".Since the earth also has a "phase" change when observed on the moon,this algorithm is also applicable to center extraction for earth sensor image of the lunar rover.关键词
天文导航/月球敏感器/月相/中心提取/半物理仿真Key words
astronomical navigation/lunar sensor/moon phase/center extraction/semi-physical simulation分类
天文与地球科学引用本文复制引用
蒲俊宇,郑勇,李崇辉,詹银虎,陈少杰,何东汉..一种能适应月相变化的月球图像中心提取算法[J].测绘科学技术学报,2017,34(5):461-465,5.基金项目
国家自然科学基金项目(11673076 （）
41604011 （）
41704006). （）
