城区Radarsat图像变化检测研究——以成都市区为例
石城,蔺启中,邵芸
中国科学院遥感应用研究所 北京 100101
THE DETECTION OF RADARSAT IMAGE VARIATION IN THE URBAN AREA: TAKE CHENGDU CITY AS AN EXAMPLE
Shi Cheng, LIN Qi-Zhong, SHAO Yun
Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China
摘要 以成都市区Radarsat图像为数据源,基于雷达图像服从的分布,对城区变化存在的平滑转变和阶越转变2种类型,运用指定
的数学算子和最大似然规律进行图像变化检测。通过和实地数据对比,得到了比较理想的检测效果。
关键词 :
土地详查 ,
动态变化监测 ,
遥感
Abstract : With the RADARSAT radar image as the data source, the authors carried out the variation detection study
in Chengdu area. By choosing proper distribution and utilizing maximum likelihood regularity, the image variation
in the urban area was investigated. On the basis of the detection of RADARSAT data variation, the urban area
variation was divided into two types, namely smooth transition and abrupt change, which were assigned respectively
to homoplasmic area and alloplasmic area. These two types were detected separately by algorithm. Practice shows
that the result is fairly satisfactory.
Key words :
Land investigation in detail
Dynamic change supervision
Remote sensing
收稿日期: 2007-09-27
出版日期: 2009-06-23
通讯作者:
石城(1981-),男,中国科学院遥感应用研究所研究生。
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