|
|
|
|
  • 软件名称:一种机载InSAR水体阴影的提取和识别方法
  • 软件大小: 0.00 B
  • 软件评级: ★★★
  • 开 发 商: 罗华,雷斌,胡玉新
  • 软件来源: 《遥感技术与应用》
  • 解压密码:www.gissky.net

资源简介

摘要: 为了解决机载InSAR DEM中水体和阴影区域质量不佳需要区分修复的问题,提出一种综合利用机载InSAR数据源自动提取水体和阴影并加以识别的方法。首先基于InSAR DEM进行粗差点检测,利用粗差点作为种子点在SAR图像中区域生长,提取完整的水体和阴影区域;然后利用沿斜距向高程差和雷达俯角构造约束条件自动识别两者。通过对实测的机载高分辨率InSAR数据进行处理,水体阴影的识别率达到92%以上,其中水体和地形阴影的识别较好,而受制于DEM内在噪声等因素的影响,由树木造成的小块阴影容易造成误分。 关键词: InSAR;  水体;  阴影;  DEM;  自动提取和识别     Abstract: In order to repair the Digital elevation model(DEM) derived from airborne Interferometric Synthetic Aperture Radar(InSAR),many studies have to identify the error patches which are caused by water or shadow.A new method is proposed to deal with this problem automatically.Firstly,gross error points are detected in DEM.Then let the points grow by using regional growth algorithm in SAR image.After that we can extract the water body and shadow areas.Secondly,we identify the water and shadow areas by constructing constraint conditions based on the height difference along range direction and radar depression angle.Airborne high\|resolution InSAR data are used to validate our method.The result shows the identify ratio of water and shadow areas can be more than 92%.Water and shadow of landform can reach satisfying effect,but small shadow result from trees is easily misidentified due to the inherent noise in InSAR DEM and other factors.

下载说明

·如果您发现该资源不能下载,请通知管理员.gissky@gmail.com

·为确保下载的资源能正常使用,请使用[WinRAR v3.8]或以上版本解压本站资源,缺省解压密码www.gissky.net ,如果是压缩文件为分卷多文件,请依次下载每一个文件,并按照顺序命名为1.rar,2.rar,3.rar...,然后鼠标右击1.rar解压.

·为了保证您快速的下载速度,我们推荐您使用[网际快车]等专业工具下载.

·站内提供的资源纯属学习交流之用,如侵犯您的版权请与我们联系.