摘要
针对单站光测图像,提出一种基于目标形状特征的三维姿态测量方法。在已知飞机外形尺寸、光测设备成像参数以及飞机与光测设备之间距离的情况下,根据飞机参考平面(水平机翼所在平面)与成像平面平行和不平行时成像尺寸的差异,可以估计出飞机参考平面相对于成像平面的位置关系,从而得到飞机相对于摄像坐标系的三维姿态,再通过坐标转换即可得到飞机相对于大地坐标系的三维姿态。该方法充分利用了目标和成像设备的先验知识,避免了复杂的模型匹配过程,具有较好的准确度和实时性,对目标的精确控制和跟踪具有重要意义。
Aiming at mono-view, a method of determination of aircraft＇s 3D pose from the form elements of the target is proposed. The attitudes of aircraft in camera coordinate system can be calculated from differences of imaging sizes between reference plane is parallel to imaging plane and not to, with the knowledge of aircraft＇s figuration, the parameter of optical equipment and the distance between aircraft and optical equipment ~ then the attitudes in geodetic coordinate system are got through coordinate conversion. The method makes the best of knowledge of aircraft and optical equipment, avoiding template matching, with good veracity and real-time. It has great significance for accurate controlling and tracking of aircraft.
出处
《火力与指挥控制》
CSCD
北大核心
2012年第7期43-46,共4页
Fire Control & Command Control
基金
国防预研基金资助项目(513270203)
关键词
三维姿态
光学测量
近似平行投影
3D pose, optical measurement, parallel projection
