航天器工程2019，Vol.28Issue(6)：118-123,6.DOI:10.3969/.j issn.1 673-8748.2019.06.018
基于双边函数全局运动模型的海冰漂移监测方法
Monitoring of Sea Ice Drift Based on Bilateral Functions for Global Motion Modeling
徐嘉 1张绪冰 2王凯2
作者信息
- 1. 北京空间飞行器总体设计部,北京 100094
- 2. 中国地质大学(武汉)地理与信息工程学院,武汉 430074
- 折叠
摘要
Abstract
In order to improve the monitoring accuracy of the sea ice drift,the Bilateral Functions for Global Motion Modeling (BFGMM)method is utilized to detect the sea ice drift of the Beaufort sea based on the Sentinel-1 data.According to the Bilateral Functions for Global Motion Modeling,it applies the bilateral domain to reformulate a piecewise smooth constraint as continu-ous global modeling constraint,and the bilateral model is adopted to remove outliers from the feature correspondences and expand the existing matching set.Also the resultant model can be ro-bustly computed from highly noise scattered feature points by using a global minimization.The experimental results showed that the BFGMM method is more capable than SIFT method.There hundreds of feature points are matched,and the match accuracies exceed 9 8% in the detection of Beaufort sea ice drift based on the test Sentinel-1 data.Finally,by means of the BFGMM method,the spatial of the vector field of sea ice drift is evaluated in the local region of Beaufort sea.关键词
双边函数/海冰漂移/匹配精度/漂移监测/哨兵一号卫星Key words
bilateral functions/sea ice drift/match accuracy/drift monitoring/Sentinel-1 satellite分类
信息技术与安全科学引用本文复制引用
徐嘉,张绪冰,王凯..基于双边函数全局运动模型的海冰漂移监测方法[J].航天器工程,2019,28(6):118-123,6.
