基于多波段K-L变换法的福州市城市用地及其变化信息提取  

Investigation on Extracting the Urban Land-use and Its Change by Multi-band K-L Transform in Fuzhou

作　　者：陈志强[1] 陈健飞[2] 

机构地区：[1]福建师范大学自然资源研究中心,福建福州350007 [2]广州大学地理科学学院,广东广州510405

出　　处：《福建师范大学学报（自然科学版）》2006年第3期100-103,共4页Journal of Fujian Normal University：Natural Science Edition

基　　金：国家自然科学基金资助项目(40371054);福建省科技厅重大项目(20031002);福建省自然科学基金资助项目(D0010008)

摘　　要：根据福州市1988年TM影像和2001年A STER影像,运用多波段K-L变换法提取城市用地及其变化信息.结果表明:多波段K-L变换法集中了两个时相的影像信息,信息量丰富,变化信息突出,根据变换结果福州市城市用地可分成“高密度旧城市用地”、“中低密度旧城市用地”和“新城市用地”,“新城市用地”包括旧城区内的新建筑物和新兴工业园区,前者建筑密度较高,后者密度较低.A TM image and an ASTER image of Fuzhou City were used to extract the urban landuse and its change information of the research area by the multi-band K-L transform. The result showed that the method join the information of two images, making the change information obvious. Based on the transform result the urban land-use can be classified into ＂high density old urban landuse＂, ＂moderate and low density old urban land-use＂ and ＂new urban land-use＂ and ＂new urban landuse＂ includes the new buildings in the old city and the new industrial areas, the former belongs to the high density urban land-use, while the latter＇s density is moderate and low.

关 键 词：遥感 高级空间热辐射热反射探测仪 城市建设用地 福州 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]