新型数字航摄相机摄影测量精度验证比对分析

Comparative analysis of photogrammetric accuracy verification of new type digital aerial camera

针对目前数字航摄相机广泛应用于自然资源地理信息生产领域,该文介绍国内外主流的数字航摄相机,分析德国DMCIII、美国UCE、国产CKAC200的成像原理及关键技术,着重介绍利用航空传感器的空对地(几何)检定场,对3种数字航摄相机的摄影测量平面精度和高程精度进行检测,从摄影测量精度方面进行比对分析,阐明该文航空传感器空对地(几何)检定场可为数字航摄相机的评价及能力验证提供了行之有效的方案。

For the current digital aerial camera which is widely used in the field of natural resources geographic information production,this paper introduced the mainstream digital aerial cameras at home and abroad,analyzed the imaging principle and key technologies of German DMCIII,UCE,and domestic CKAC200,and focused on the advantages and disadvantages of various digital aerial cameras in the process of photogrammetric accuracy detection.The air-to-ground(geometry)verification field of the aerospace sensor was used to detect the photographic measurement plane accuracy and elevation accuracy of the three digital aerial cameras.From the comparative analysis of photogrammetric accuracy,air-toground(geometry)verification field of the aerospace sensor could provide an effective solution for the evaluation and capability verification of digital aerial camera.