基于航空影像的城市大比例尺地形图更新

摘要

Large-scale urban topographical maps can be rapidly renewed by treating the aerial images, overlapping the vectorization maps using remote sensing software and interpreting the means of distinguishing the change of ground features. Compared with traditional methods, this method has the advantages of shorter working time, higher precision and lower funding, which increases the renewal efficiency of large-scale topographical maps.%通过对航空影像进行处理,利用遥感软件对研究区矢量地形图进行叠加,经过判读识别地物变化的解译方法,达到对原有地形图快速更新的目的.该方法与传统方法相比,具有工作时间短、精确度高、节省经费等优势,大大提高了大比例尺地形图更新效率.