东北平原城镇居民地TM图像自动提取模型研究  

A study on automatic extraction model for the residential area of cities in the Northeast Plain from TM image

作　　者：赵乃卓[1] 赵云升[1] 刘珊珊[1] 

机构地区：[1]东北师范大学城市与环境科学学院,吉林长春130024

出　　处：《国土与自然资源研究》2007年第1期26-28,共3页Territory & Natural Resources Study

基　　金：国家自然科学基金(30370267)

摘　　要：以成都平原为实验区所建立的TM图像居民地自动提取模型,在应用于东北平原城镇居民地提取时,所选TM像片的时间被限制在7月上旬至8月底,否则大量的半裸耕地或耕地将被多提,而且,大量的盐碱地和河边滩地也无法被剔除;在借鉴传统城镇居民地提取模型成功经验的基础上,对原有模型进行了改进,不但可以将大量盐碱地及河边滩地剔除,而且扩展了模型可应用的时空范围,并最终得到了较高的提取精度。When automatic extraction model of the residential area of cities from the TM images is used for extract the inhabitants of the northeast which is established at the Chengdu Plain , the time of the TM images is limited from the beginning of July to the end of August, otherwise most of the bare lands and had bare lands will be extracted. Moreover, massive saline and alkali lands and the riverside beach lands are also unable to be cast off. In this paper, the original model is improved on the foundation of the success experience of the traditional extraction model. This model can not only exclude massive saline and alkali lands and riverside beach lands, but also expands the application time and space scope ,and finally improves the extracting precision.

关 键 词：TM图像 东北平原 城镇居民地 灰度值 

分 类 号：F293.2[经济管理—国民经济]