改进的局部二值法与熵结合的边缘检测算法  

Edge Detection Algorithm Based on Improved Local Binary Pattern and Local Entropy

作　　者：邱宇 欧阳敏 胡斌 杨文博 盖永浩 邓聪 张文祥 QIU Yu;OUYANG Min;HU Bin;YANG Wenbo;GAI Yonghao;DENG Cong;ZHANG Wenxiang(Zhanjiang Branch,China National Offshore Oil Corporation Limited,Zhanjiang 524057,China;College of Geophysics,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]中海石油(中国)有限公司湛江分公司,广东湛江524057 [2]成都理工大学地球物理学院,成都610059

出　　处：《吉林大学学报（信息科学版）》2023年第5期952-960,共9页Journal of Jilin University（Information Science Edition）

摘　　要：为解决识别地震图像上的断层、气烟囱等特殊地质体的边界信息模糊、噪音影响等问题,提出一种改进的局部二值模式(LBP:Local Binary Patterns)算法与局部熵(ENT:Entropy)结合的边缘检测算法(LBP/ENT)。利用传统的LBP构建一种旋转不变统一的局部二值模式,使其适应地震图像异常地质体的横向不连续性,并引入局部熵刻画地震图像局部的离散特征,提高地震噪音的鲁棒性。利用提出的LBP/ENT方法对复杂的Marmousi理论模型和实际地震图像上的气烟囱进行研究,并与Canny算子、LBP算子、局部方差(VAR:Variance)、LBP/VAR算子进行对比,结果表明:LBP/ENT能更清楚地刻画地震图像的边缘信息,对噪音具有更好的鲁棒性。研究实例说明提出的LBP/ENT算法为检测地震图像上特殊地质体的边缘信息提供了一种可行的技术方法。In order to solve the problems of fuzzy boundary information and noise influence in identifying special geological bodies such as seismic faults and gas chimney in seismic images,the LBP/ENT edge detection algorithm is proposed,which is an improved combining LBP(Local Binary Patterns) algorithm and local ENT(Entropy).Rotation invariant unified local binary pattern is used to construct the traditional LBP.The transverse discontinuity of abnormal geological bodies is adapted in seismic images,local entropy is used to describe the local discrete characteristics of seismic images to improve the robustness of seismic noise.Compared with Canny operator,LBP Operator,local VAR(Variance) and LBP/VAR operator,the proposed LBP/ENT method is used to study the complex Marmousi theoretical model and the gas chimney on the actual seismic image.The results show that LBP/ENT can more clearly describe the edge information of seismic image and have better robustness to noise.It is concluded that the proposed LBP/ENT algorithm provides a feasible method and technology for detecting the edge information of special geological bodies on seismic images.

关 键 词：局部二值模式 局部熵 边缘检测 地震断层 气烟囱 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]