无人机载多面阵组合宽角五相机影像拼接技术

摘要

The UAV is widely employed in aerial photogrammetry in recent years,and the mode of multi-format combined wide angle camera has more obvious advantages than that of single camera.Aiming at the image processing problems of airborne combined wide angle five-head camera,a method of large format image mosaicking is presented.The corrections of relative angle elements through the least square method and the precise value are calculated as the image mosaicking parameters by the parallax equations in the sub-images overlapping regions.Finally,the image mosaicking process of multi-format combined five-head camera is accomplished.%近年来无人机在航空摄影测量中得到广泛应用,且多面阵宽角组合相机与单相机作业模式相比有诸多优势.针对无人机搭载的组合宽角五相机的影像处理问题,提出了实现大像幅影像拼接的方法与技术流程.通过在子影像重叠区域内建立视差方程,采用最小二乘法整体答解相对角元素修正量,最终得到精确的相对角元素值并作为影像的拼接参数,实现了多面阵组合五相机的影像拼接.