SAR与TM影像的IHS变换复合及其质量定量评价

本文采用四种典型的IHS变换方法,对同一地区的SAR与TM影像进行了复合,并对复合后图像的信息量及清晰度作了定性和定量分析。结果表明,用熵、联合熵和平均梯度这三个定量指标客观评价SAR与TM影像的复合效果,比目视评价结果准确有效,从而为选择最佳IHS变换方法进行多源遥感数据复合提供了依据。

COMPARISON OF IHS TRANSFORMATION FOR INTEGRATING SAR AND TM IMAGES

This paper studied the actual application of high-new techniques such as geographical information system (GIS) and remote sensing in flood control by nono-engineering measures on Xiaoqinghe detention basin, and developed the usable Flood Monitor Information System (FMIS) of this area, which was associated with flood control remote sensing subsystem. Apart from implementation of many ways for flood loss assessment, this paper studied the models of inundation calculating, flood demonstrating continuely and the best route analysing. Meantime as a component of flood remote sensing information system, this FPIS can be used with flood remote sensing subsystem, and provide estimated data as well as statistic data of the loss resulting caused by flood, which are useful for flood prevention departments.