土地利用图件遥感快速更新方法的探索

以深圳市为例 ,简要介绍了运用遥感技术进行土地利用现状图快速更新的方法和流程。该方法以遥感影像为基础数据源 ,结合土地利用详查数据和变更资料 ,采用影像融合和计算机自动变化提取技术 ,同时综合多源信息 ,以人机交互知识解译方式提取土地利用变化信息 ,辅助应用 GPS对变化信息进行外业实地调查 ,从而快速更新深圳市土地利用栅格图。该方法可快速、及时地获取和掌握土地利用变化信息数据 ,为土地资源的保护、利用、规划等提供技术支持

Exploration on the Method of Updating Landuse Maps by Remote Sensing

This article explored tne method and workflow of updating landuse map by remote sensing technology through the illustration of Shenzhen city,China.Based on the remote sensing image data,integrating the landuse exploration data and other landuse materials,using image fusion and auto-extracting change information technology,and synthesizing multi-resource information,this method extracts the change information of landuse by man-machine alternately determination of knowledge.GPS was used to investigate change information on field,and then update the raster image of landuse.By this means,the landuse change information can be obtained and acquired in time,and provide the technical support on land resource conservation,utilization and planning.