B样条函数的火箭弹图像边缘检测算法

本文研究一种基于B样条函数提取火箭弹图像边缘的检测算法.该算法的基本思想是利用B样条函数先对火箭弹图像进行拟合,然后求拟合曲面的二阶导数,根据二阶导数的零交叉点来检测图像的边缘.通过该算法与几种传统边缘检测算法的实验对比,证明了基于B样条函数的边缘检测算法可以较好地解决火箭弹图像边缘的提取精度与图像噪声的抑制能力之间的矛盾,较目前常用的算法在火箭弹图像边缘检测方面有更大的优势,该算法得到的目标图像边缘清晰、分割效果好,同时该算法简洁、易于实时处理,在火箭弹图像边缘检测方面有较好的应用前景.

An edges detecting scheme for rocket based on B-spline function

In this paper,a method of detecting rocket image edges based on B spline function is presented. First the rocket surface is fit by B spline function. Then the second order derivates is obtained for the smoothing surface. Finally the edge points are found through zero-crossing of the second order derivates. By experiments,using B spline function for detecting rocket image edges is shown to be superior to the current algorithms in terms of resolving the contradiction between the detection precision of the rocket image edges and the restraining ability of an image noise. The image edge derived from this scheme is more explicit and hence, a perfect result for splitting image is achieved. The scheme is simple and useful in real-time operation and is therefore an attractive scheme for practical systems.