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  • 软件名称:城镇区域高分辨率遥感影像地表覆盖变化检测的误差分析
  • 软件大小: 0.00 B
  • 软件评级: ★★★
  • 开 发 商: 冀新莹, 韦玉春, 王问尧, 方宏
  • 软件来源: 《遥感技术与应用》
  • 解压密码:www.gissky.net

资源简介

摘要: 利用高空间分辨率遥感影像对土地利用/土地覆盖进行变化检测是国土监测的重要内容。但是,高分辨率影像存在一些中低分辨率影像所不具有的难点和不确定性,使得对城市区域进行变化检测获得的结果在阴影、图像配准、阈值选择、检测方法选择和图像后处理等方面的误差更为突出。基于ENVI和ERDAS软件中的工具,使用2009年和2012年两个时相的南京仙林航空彩色图像进行了变化检测,然后按照类内、类间地物类型进行了误差分析。结果表明:漏分误差的97.6%为类间误差,错分误差的87.1%为类内误差。按照误差的主要来源,漏分像素的72.6%来自于检测方法;错分像素的43.6%来自于检测方法、39.7%来自于辐射的不一致性。研究结果可为新变化检测算法的开发提供参考支持。 关键词: 变化检测;  高空间分辨率遥感影像;  误差分析;  地表覆盖     Abstract: Land use/land cover change detection using high spatial resolution remote sensing image is an important content in land monitoring.However,the problems of shadow,image registration,threshold selection,detection method selection and image post-processing are more prominent in high-resolution images compared with that in medium and low resolution images,which result in more difficulties and uncertainties.Change detection of land cover was carried out base on aerial color images between 2009 and 2012 in Xianlin District of Nanjing,and the errors were analyzed in terms of intra-class and inter-class.The results show that the inter-class error accounted for 97.6% in the omission error,and the intra-class error accounted for 87.1% in the commission error.According to the error sources,72.6% of the false negative pixels are derived from the detection method,43.6% of the false positive pixels are come from detection method while 39.7% from radiation inconsistent.The analysis results in the paper provided reference for the development of new change detection algorithm.

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