基于立体全景的远距目标精确量测方法

针对全景影像无法提供场景中目标的地理空间信息问题,提出一种通过构建立体全景,实现对全景影像中较远距离兴趣点目标的量测方法。现有的基于立体视觉的量测方法主要实现对近距离物体的量测,对于较远距离(如100 m以上)的物体,在缺乏控制点的情况下,使用非量测相机难以获得精确结果。所提方法在获取全景影像的同时,采用GPS/INS传感器获取相机的位置和姿态信息,在后续数据处理过程中,通过改进相对定向环节中初始值的设置方法,实现对全景影像中远距离目标的精确量测。实验表明,量测结果的相对精度可以达到相机与目标之间距离的1%。

A Precise Survey Method for Objects at a Distance Based on Stereo Panorama

A survey method for objects at a distance is proposed in order to resolve the problem of lacking geospatial information in stereo panorama.The current methods mainly aim at the survey for close range objects,while for a bit far range objects or even for long range objects measurement with a non-metric camera,the accuracy of the result is low if there are no control points provided.In the proposed method,GPS/INS sensors are utilized to acquire the camera's pose data,and the original values in the relative orientation procedure are set in a new way.As a consequence,objects can be measured much more precisely on the stereo panorama,with the precision up to 1％ of the distance between the camera and the objects in the performed experiments.