Automatic Land Use and Land Cover Change Detection with One Temporary Remote Sensing Image
单一时相遥感数据土地利用与覆盖变化自动检测方法

Automatic land use and land cover change (LUCC) detectionvia remote sensing image has awide application inthe area of LUCCresearch, nature resource and environmentmonitoring and protection. Underthe conditionthatone time (T1) data is existed land use and land covermap, and anothertime (T2) data is remotely sensed imagery, howto detect change automati- cally is still an unresolved issue. This paper developed a land use and land cover classknowledge-orientedmethod forautomatic change detectionunderthis situation. Firstly, the land use and land covermap inT1and remote sensing images inT2were registered and superimposed pre- cisely. Secondly, the remote sensing knowledge database of all land use and land cover classeswas constructed based onthe un- changed parcels inT1map. Thirdly, guided byT1land use and land covermap, feature statistics for each parcel or pixel in re- mote sensing imageswere extracted. Finally, land use and land cover changeswere found and the change class was recognized through the automatic matching between the knowledge database of remote sensing information of land use and land cover classes with the extracted statistical information inthat parcel or pixel. Experimental results and some practicat applications showthe ef- ficiency of this method.