在ERDASIMAGINE中建立邯郸市TM影像土地类型解译标志

为了准确地了解邯郸市的土地利用类型，掌握土地资源的发展动态，在ERDASIMAGINE软件支持下，将Landsat 5号卫星所得的TM4、3、2波段数据组合输出成为标准假彩色影像，对其进行几何校正、重采样、图像裁剪与镶嵌等操作，依据遥感图像特征、地物相关关系、区域特点和全国土地利用分类系统，对处理后所得的邯郸市TM影像建立土地类型解译标志。经过实地验证，其结果判正率比较高，可以满足解译精度的要求，这说明利用遥感技术建立土地利用类型解译标志是可行的。

Setting up the interpreting keys of land types about the TM image of Handan City based on Erdas Imagine

In order to understand accurately the land--use types and master development of land resources in Handan City, the band of TM4, TM3 and TM2 band from satellite Landsat5 are selected and made stack together with the support of ERDAS IMAGINE software, and then geometric correction, re--sampiing process, image subset and image mosaic are carried out on them. Based on the characteristics of remote sensing images, the correlation among the regional characteristics of Handan City, national land--use classification system, and the interpreting keys of land types about the Thematic Mapper image processed of Handan City are set up. Through field survey, the result of correct rate is very high and could meet the need of interpreting accuracy, which indicate that the interpreting key is feasible for accurately interpreting land use type.