省级基础测绘居民地快速更新方法研究
Research on Rapid Updating Method of Provincial Basic Surveying and Mapping Residential Area

利用遥感影像比对以及地理国情监测数据对句容市居民地数据进行更新，两种方法相对于传统地毯式搜索变化信息，效率有所提高。两种方法各有优点，地理国情监测数据获取方便，且每年都有更新，但由于其数据与基础测绘数据的差异，该数据只能作为变化发现的一项参考，不能直接用于基础测绘数据更新。遥感影像比对方法，过程较复杂，但其提取的房屋数据可用于直接更新基础测绘数据。在有条件的情况下，可将该2种方法结合，利用地理国情监测数据进行变化发现，利用影像提取房屋进行更新。
Using remote sensing image comparison and geographical conditions monitoring data to update the residential area data of Jurong City, the efficiency of the two methods is improved compared with the traditional carpet search for changing information. The two methods have their own advantages. The geographical condition monitoring data is easy to obtain and updated every year. However, due to the difference between the data and the basic surveying and mapping data, the data can only be used as a reference for change discovery and cannot be directly used for basic surveying and mapping data updating. The process of remote sensing image comparison is complex, but the house data can be used to update the basic surveying and mapping data directly. Under certain conditions, the two methods can be combined, and the changes can be found by using the monitoring data of geographical conditions, and the house data can be updated by image extraction.