一种无精确地面控制点的航空影像处理方案

A Data Processing Scheme of Airphoto with No Ground Control Points

针对未布设精确地面控制点区域航空遥感影像数据处理困难的问题,提出了一套包括色彩拉伸,通过从大比例尺地方坐标矢量地图上量算获得控制点参数的方法,进行航空影像的正射校正、羽化镶嵌、影像的地理坐标编码转换、标准投影变换等流程的航空遥感影像数据处理方案.实践证明,该方案工程实现容易、数据处理精度符合应用要求、技术上可行.

To the difficulty in data processing of no accurate ground control points(GCPs) regions, the paper presents a sound scheme of airphoto data processing including color stretching, airphotoes orthorectifying through obtaining GCPs measured in huge scale vector maps, mosaicking with feathering, images georeferenced codes transfer, map projection converting, and so on. Practices have proved that it is easy to realize the scheme and the data processing precision is adapted to application requirement and the scheme is feasible technically.