和世熙, 张聪炫. 基于直线与端点光流对应的刚体三维运动测量与轮廓重建[J]. 南昌航空大学学报(自然科学版), 2016, 30(3): 23-30. DOI: 10.3969/j.issn.1001-4926.2016.03.005
引用本文: 和世熙, 张聪炫. 基于直线与端点光流对应的刚体三维运动测量与轮廓重建[J]. 南昌航空大学学报(自然科学版), 2016, 30(3): 23-30. DOI: 10.3969/j.issn.1001-4926.2016.03.005
HE Shi-xi, ZHANG Cong-xuan. Three-dimensional Motion Measure and Contour Reconstruction Based on the Correspondence of Point and Straight-line Optical Flow[J]. Journal of nanchang hangkong university(Natural science edition), 2016, 30(3): 23-30. DOI: 10.3969/j.issn.1001-4926.2016.03.005
Citation: HE Shi-xi, ZHANG Cong-xuan. Three-dimensional Motion Measure and Contour Reconstruction Based on the Correspondence of Point and Straight-line Optical Flow[J]. Journal of nanchang hangkong university(Natural science edition), 2016, 30(3): 23-30. DOI: 10.3969/j.issn.1001-4926.2016.03.005

基于直线与端点光流对应的刚体三维运动测量与轮廓重建

Three-dimensional Motion Measure and Contour Reconstruction Based on the Correspondence of Point and Straight-line Optical Flow

  • 摘要: 本文提出了一种基于点、线光流对应的三维运动测量与轮廓重建方法。首先在透视投影模型下分别推导点、线光流与三维运动速度的对应关系式;然后根据平面像素点与特征直线的对应关系建立基于点、线光流对应的三维运动估计模型,根据该模型只需检测连续两帧图像中一条直线光流和该直线外一个像素点光流或者两条不相交直线的直线光流就可以测量出运动物体的旋转、平移速度;最后根据得到的运动速度重建物体的空间轮廓结构。实验证明,本文方法具有较高的测量精度和较好的重建效果。

     

    Abstract: In this paper, a method for three-dimensional motion measure and contour reconstruction based on the correspondence of point and straight-line optical flow is proposed. Firstly, the relationship equations of point and straight-line optical flow with the three-dimensional motion velocities are given under the perspective projection model. Then the three-dimensional motion estimation model based on the correspondence of point and straight-line optical flow is established according to the corresponding relationship of the point and straight-line. With the established model, the rotational and translational velocities of the motion object could be obtained only required detecting a straight-line optical flow and a point optical flow outside the straight-line or two disjoint straight-line optical flow. Finally, the space contour structure could be reconstructed according to the obtained motion velocities. Several experimental results show the proposed method has highly measured accuracy and well reconstructed result.

     

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