UAV载特轻小型组合宽角数字相机拼接模型  

Mosaic model of compact and wide-angle composite digital camera system for UAV

作　　者：桂德竹[1,2] 林宗坚[2] 刘召芹[3] 彭晓东[2] 李国胜[1,2] 解斐斐[2] 

机构地区：[1]中国矿业大学环境与测绘学院,江苏徐州221008 [2]中国测绘科学研究院,北京100039 [3]中国科学院遥感应用研究所,北京100872

出　　处：《红外与激光工程》2009年第5期905-909,914,共6页Infrared and Laser Engineering

基　　金："十一五"国家科技支撑计划项目(2006BAB15B01);"十一五"国家科技支撑计划项目(2008BAJ11B07);863计划重点项目(2008AA121305)

摘　　要：针对无人飞行器小负载的需求,设计了具有自检校功能的特轻小型四组合宽角数字相机,克服了数码相机像幅小,基线短的缺点;提出了一种基于软式的稳定平台的解决方法,实现了无稳定平台的正直航空摄影测量,满足了高精度、高效率的大比例尺低空摄影测量应用,解决了城市复杂建筑物多面纹理的获取问题。测图精度检测结果表明:相机相对自检校有效纠正了航摄过程中的机械变形,满足了影像拼接的几何精度,使用该组合宽角数码相机影像资料测制的1:1000比例尺地形图可满足精度要求,优于规范规定的限差。According to the need of small load of UAV, a compact and wide-angle composite digital camera, which has self-calibration function, was designed through combination of four individual digital cameras. It could overcome the disadvantages of the narrow cover and short base line of single camera. The solution based on a soft style steady platform was suggested. The upright aerial photography without steady platform was implemented. So the developed camera could be used in low altitude and large proportion photography with high resolution and efficiency. The problem how to acquire the multidimensional texture images of complex buildings in city was solved. Experimental results of image test show that the proposed self-calibration method can effectively correct and compensate for the mechanical deformation during aerial photography and meet the geometrical precision of image mosaic. The precision of 1：1000 scaled map from the images taken with the wide-angle composite camera is satisfing and higher than specified tolerance.

关 键 词：无人低空飞行器 特轻小型组合宽角数字相机 自检校 虚拟影像 多面纹理 

分 类 号：TN215[电子电信—物理电子学]