非量测相机摄取小像幅航片测绘大比例尺地形图的研究

对我国首次用轻型飞机拍摄的小像幅航片进行大比例尺测图进行了研究。解决了如何应用小像幅航片进行放大测图,如何消除航片未经压平所造成的系统误差影响,以及倾角过大如何测图等问题。经实验验证,证明小像幅航片可用于大比例尺测图,精度能满足规范要求。

On the Large-scale Topographic Map Produce with Small Format Non-metric Camera Airphotos

The large-scale topographic map first produced by small format non-metric camera airphotos liken in the light aeroplane is discussed. The approaches that how to make useof enlarged photos,and how to over come the difficult from very large dip angle and the acs-tematic error caused by film unfiattenness are presented in sequence. It is proved by experimentS that small format airphotes can be used to produce large scale toPOgraphiC map. Themap precision according to the demands of mapping standard.