【摘要】 提出一种二次曲线的整体表示法:空间二次曲线和平面二次曲线的坐标表示法,建立了基于动态灰度图像和基于序列灰度图像的二次曲线光流概念。采用边缘检测、边缘细化和轮廓跟踪等技术,获得了具有单像素宽的边缘点集,提出用分段二次曲线描述边缘,计算得到了二次曲线的光流。更多还原

【Abstract】 In this paper, a new method of representing a conic in three-dimensional space is proposed. The concept of the coordinates of the conics in two-dimensional and three-dimensional space is defined. The definition of the optical flow of a conic is given based on a time-varying image and consecutive images. The edge points with single pixel width have been obtained by using of the algorithms of edge detector, edge thinning and contour following from consecutive images, and the edges obtained are represented as conics. The computation of the optical flows of conics has been accomplished.更多还原