我国高速暂冲式风洞洞体振动较大,故振动环境中的相机位置坐标与姿态角解算技术对模型变形视频测量(VMD)至关重要。为此,建立振动模拟实验平台,研究相机位置坐标与姿态角求解方法,结果表明:基于蒙特卡洛法的相机位置坐标与姿态角求解法最适于振动环境中VMD测量的相机位置坐标与姿态角求解。
The calculation of exterior orientation elements is essential to videogrammetric model deformation(VMD) with multi-camera, because intermittent high-speed wind tunnel tests produce stronger vibrations. Therefore, the vibration simulating platform was established to investigate the performances of several different exterior orientating methods for same images. The results have demonstrated that the exterior orientating methods based on Monte-Carlo solution is most suitable for the vibration environment of VMD.