摘要
DEM是遥感技术应用中非常重要的数据源,它不仅可以生成等高线,而且可以产生正射影像。本文论述了SPOT立体像对的DEM恢复技术流程;对不同参数模型恢复结果进行了质量评价,提出最优的参数模型;并分析了引起局部错误匹配的原因及解决方法。
Digital elevation model (DEM)is very important data to applic at ion of remode sensing.It can not generate contour but also orthoimage.This paper discusses the technical processes of DEM re-construction using SOPT ste reo images.Through analysis of the results of different parameters model lik e matching window and grid interval,the better parameter model is proposed and quality evaluation of generated DEM is carried.In additional,this pa-per ana lyzes the reasons leading to the errors of image matching in part of an area and presents the ways to resolve the errors.
出处
《黑龙江工程学院学报》
CAS
2002年第4期26-28,共3页
Journal of Heilongjiang Institute of Technology
基金
国家自然科学基金项目(49831070)
