基于多目立体视觉的试件飞行运动速度测量方法研究

Measurement method for Specimen Fly Speed Based On Multi-Camera Stereo Vision Technique

摘要:

为了测量试件的飞行速度，提出了一种基于多目立体视觉技术的飞行运动速度测量方法。首先研究了多目相机的标定方法，然后通过图像匹配的方法来获取各个相机图像中目标点的图像位置，最后根据各个相机的内部和外部参数，重建得到被测试件的三维坐标，结合相机的拍摄速度，计算出试件的飞行速度。结果表明：该方法可以较为准确的测量出试件在整个飞行过程中的运动速度，且具使用灵活，操作方便等特点。

Abstract:

In order to measure the fly speed of specimen, a novel measurement method based on multi-camera stereo vision technique is proposed. Firstly, we research the calibration method of multi-camera stereo vision measurement system. Patch matching is preformed to find the correspond points in each camera image. Finally, the three-dimensional coordinate and speed of the test point is calculated at each camera frame time. The result shows that the method can accurately measure the specimen fly speed with the advantages of flexible and simple operation