摘要
为了提高SINS/GPS组合导航中景象匹配辅助的精确性和可靠性,必须在景象匹配区的适配性因素不同时选择到合适的匹配算法。系统对SURF和SIFT2种匹配算法的适用条件进行研究,比较各适配性因素对匹配区选择以及匹配算法性能的影响。实验结果表明,2种算法都更容易在地物稳定的区域内找到稳定特征点,匹配成功率取决于基准图抗噪性和实时图旋转角度等适配性因素。
To improve the accuracy and the reli-ability of SINS/GPS integrated navigation aided by scene matching,comparison studies were conducted to figure out the applicability of the two state of＆amp;nbsp;art matching algorithms SURF and SIFT and the influence of the suitability factors.The results of simulation experiments indicate that the image re-gion with high gradient is suitable to be as marc-hing region.
出处
《机械与电子》
2014年第3期10-13,共4页
Machinery & Electronics
基金
航空科学基金资助项目(20130153002)
关键词
组合导航
景象匹配
适配性
匹配算法
integrated navigation
scene matc-hing
suitability
matching algorithms
