多幅正射影像镶嵌的接边精度改进方法  

Improvement of the Precision of Overlapping Area Correction in Orthoimages Mosaicking

作　　者：夏团兵 万幼川[1] 孙明伟[1] 

机构地区：[1]武汉大学遥感信息工程学院,湖北武汉430079

出　　处：《地理空间信息》2016年第3期45-47,8,共3页Geospatial Information

基　　金：国家科技支撑计划资助项目(2014BAL05B00);国家重点基础研究发展计划资助项目(2012CB719904);博士点科研基金资助项目(20130141130003)

摘　　要：针对目前方法大多只能对两幅正射影像进行接边纠正且精度不高的问题,提出了一种基于最小二乘法的多幅正射影像镶嵌的接边精度改进方法。实验结果证明,该方法不仅提高了两幅影像接边纠正的精度,而且实现了多幅影像接边区域的同时纠正,消除了影像只能两两纠正带来的误差积累,得到了接边精度更高的镶嵌影像。For current methods are mostly carried out for two orthoimages' overlapping area correction and the accuracy is not high, the article introduced a method based on the least square method to improve the precision of overlapping area correction in orthoimages mosaicking. The experimental results show that this method not only improves the accuracy of overlapping area correction between two orthoimages, but also achieves multiple orthoimages' overlapping area correction. This method avoids error accumulation and results in high accuracy, and gets a better result of mosaicking with higher precision and integrity.

关 键 词：正射影像 SIFT匹配 最小二乘法 曲面拟合 网格插值 

分 类 号：P237[天文地球—摄影测量与遥感]