If there is a previous line or curve segment in the figure , a line is added to connect the endpoint of the previous segment to the starting point of the cubic curve 如果图形中已有一段直线段或曲线段,则添加一段直线连接已有线段的终结点和立方曲线的起始点。
The research includes following parts : 1 . online signature verification based on improved dynamic time warping and the elastic matching of 1d curve segments 本文对联机手写签名鉴别技术进行研究,主要研究内容包括: 1 .基于改进动态时间规整和一维曲线段弹性匹配的联机手写签名鉴别。
Many aspects related to this problem are discussed and studied in this thesis . for curves , a c1 or c2 continuity join condition of curve segments is given after local multi - resolution edition 文中还对b样条曲线曲面局部多分辨编辑时的连续拼接问题进行了研究,并给出了不少算例。
In this model , the deformed active contour is represented by the cubic b - spline curve segments which are restricted by the control points , and the control points are applied to the calculation of dp algorithm , in the end the contour of image is found 该模型采用控制点控制的三次b样条曲线段来表示活动轮廓,然后将控制点代入动态规划法求解,从而实现对图像的轮廓提取。
In the forth chapter , we proposes an approach of constructing planar piecewise bezier curve of 3rd 4th and 6th degree with all edges tangent to a given control polygon and the curve segments are joined together with c1 c2 and c3 - continuity . the segmented bezier curves are all shape - preserving to their tangent polygon 第四章讨论与给定多边形相切的分段三次、四次、六次b zier曲线,所构造的曲线c ~ 1 、 c ~ 2 、 c ~ 3 -连续,并且对切线多边形是保形的。