SIFT算法在油水井管柱图绘制系统中的应用研究  

Research on the Application of SIFT Algorithm in the Drawing System of Oil and Water Well Tubing Diagram

作　　者：尚福华[1] 蔡伟耀 解红涛[1] 杜睿山[1] SHANG Fuhua;CAI Weiyao;XIE Hongtao;DU Ruishan(College of Computer and Information Technology,Northeast Petroleum University,Daqing 163318)

机构地区：[1]东北石油大学计算机与信息技术学院,大庆163318

出　　处：《计算机与数字工程》2023年第12期3015-3019,共5页Computer & Digital Engineering

基　　金：黑龙江省哲学社会科学研究规划项目“基于知识图谱的社会学研究前沿探测方法研究”(编号:19SHE280);东北石油大学引导性创新基金“知识图谱在油田井控知识智能学习系统中的应用研究”(编号:2019YDL-20)资助。

摘　　要：油水井管柱图是各种工程设计的重要图件,为了提高管柱图的绘图效率,解决传统方法管柱图绘制过程中手动拼接效率低以及在轨迹弧段处拼接错位等问题,引入自动拼接思想,提出了一种基于尺度不变特征变换(SIFT)算法的油水井管柱图绘制系统。首先将管柱工具图例按照两步纹理映射的算法形成纹理管柱工具图例,然后通过高斯模糊构建出尺度空间,搜索所有尺度空间上的纹理管柱工具图例特征点的位置,通过对尺度空间函数进行曲线拟合进行特征点定位,用图像分级方法获得局部结构特征点的固定方向,然后为每个特征点绘制特征描述符,并创建SIFT特征描述向量,最后采用加权平均图像融合的方法绘制成完整的油水井管柱图图像。结果表明,此方法显著提升了管柱图绘制系统的效率和视觉效果。Oil and water well string diagrams are important drawings for various engineering designs.In order to improve the drawing efficiency of the pipe string diagrams and solve the problems of low manual splicing efficiency and splicing misalignment at the arc of the trajectory in the traditional method of drawing the string diagram,the idea of automatic splicing is introduced and an oil-water well string drawing system based on the scale invariant feature transform(SIFT)algorithm is proposed.First,the legend of the pipe string tool is formed according to the two-step texture mapping algorithm to form the texture pipe string tool image,and then the scale space is constructed through Gaussian blur,and the location of the texture pipe tool image feature points on all scale spaces is searched,and the scale space function performs curve fitting to locate the feature points.It uses the image gradient method to obtain the stable direction of the local structural feature points,establishes a feature descriptor for each feature point,generates the SIFT feature description vector,and finally uses the weighted average image fusion method to draw a complete oil-water well string diagram image.The results show that this method significantly improves the efficiency and visual effect of the pipe drawing sys-tem.

关 键 词：管柱图绘制 管柱工具图例 纹理贴图 SIFT 特征点提取 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]