基于联合概率的构造等高线断线重建方法

Contour line disconnection reconstruction based on joint probability

孙歧峰 段友祥 李宁宁 李洪强 2

中国石油大学（华东）计算机与通信工程学院，山东 青岛 266580 中国石化胜利油田分公司钻井工艺研究院，山东 东营 257000

College Of Computer & Communication Engineering, China University Of Petroleum, Qingdao 266580, China Research Institute of Oil Production Technology, Shengli Oilfield Company, SINOPEC, Dongying 257000, China

针对构造等高线断线重建问题，文中分析了多种等高线断线重建算法，提出了一种基于联合概率的构造等高线断线重建算法。将分割后的等高线的断点进行分类，分别处理每一类断点。在中间断点处理过程中，先根据方向信息对其进行分组，然后在考虑断点距离、方向差异和拟合曲线平均曲率等因素的基础上，采用基于最大连接概率的等高线断线重建算法进行断线重建。实验结果表明，该方法解决了不同尺寸图像和不同复杂程度的构造等高线图的断线重建问题，与现有方法相比，具有较好的适应性和准确性。

Aiming at the problem of reconstruction of contour line disconnection, this paper analyzes a variety of contour disconnection reconstruction algorithm, and proposes a contour algorithm based on joint probability reconstruction algorithm. Firstly, the breakpoints in the segmented contour map are classified, then each type of breakpoint is processed. In the process of intermediate breakpoint processing, it is grouped according to the direction information, and then based on the factors such as breakpoint distance, direction difference and mean curvature of fitting curve, the contour line reconstruction algorithm with maximum connection probability is used to reconstruct the contour disconnection. The experimental results show that the proposed method solved the problem of disconnection reconstruction of contour images with different size images and different complexity levels, and has better adaptability and accuracy than the existing methods.

10.6056/dkyqt201902008