基于双曲线的计算机视觉的管口尺寸测量

为了测量管口的尺寸，通常采用计算机视觉方法。以往利用图像中的曲线计算特征点和建立左右图像中点与点之间的对应关系，速度慢，实时性差。针对此问题，提出了一种新方法，在两幅图像中两个二次曲线建立全局匹配和对场景中二次曲线全局重建。通过解三个单变量方程，两个二次曲线的匹配能被全局地建立。实验表明,该算法具有很好的鲁棒性、实时性。

Computer Vision Method Based on Quadric Curves of Measuring Pipe Orifice

For measuring the pipe orifice,a computer vision method is used.The previous curve based stereo method is slow,in which curves in images are used for computing the features of the points and for establishing the point-point correspondence between the left and the right image.A new method is presented.A closed form solution for the global matching criterion of two quadric curves in two images and furthermore and a closed form solution for the global reconstruction of the conics in the scene are presented.It ...