关键词: 遥感影像, 动态监测, 变化检测, 变化图斑

Abstract: For the past few years，the dynamic monitoring technique for land use based on high resolution remote sensing imagery is at the stage of key-technique research and system development in China.The paper regards the system of the dynamic monitoring for land use as an example，and expounds detailedly the key-techniques and the process obtaining the change polygon.In the paper，a brief introduction about the constitute of the dynamic monitoring system is firstly given.Then，the area change detection techniques，classification methods，the alterative area and attribute acquisition are discussed in detail.Lastly，the paper describes the operation flowline and primary function，and analyzes the application perspective of the system and the problems that will be improved in the future.

Key words: remote sensing imagery, dynamic monitor, change detection, change polygon