基于前视钻孔摄像提取全景图像的方法  

Extraction of Panoramic Images Based on Forward Borehole Camera

作　　者：曹茂永[1] 高炜[2] 邓兆鹏[1] 赵猛[1] 

机构地区：[1]山东科技大学电气与自动化工程学院,山东青岛266590 [2]山东科技大学电子通信与物理学院,山东青岛266590

出　　处：《郑州大学学报（理学版）》2017年第2期78-82,共5页Journal of Zhengzhou University:Natural Science Edition

摘　　要：依据前视钻孔窥视仪在地质勘探中的相关数据,提出一种将前视图像进行数字图像处理得到对应全景图像的方法,将钻孔孔壁全景范围内的三维柱面空间投影到二维平面.首先根据图像特征确定图像的圆心并划定半径,然后利用极坐标转换结合插值算法,得到矩形平面展开图,再利用图像灰度特征相似度准则和滤波技术进行图像匹配拼接,得到满足定量分析要求的全景图.A new method that transforming the forward borehole images to panoramic images was proposed, according to the related data measured by forward borehole camera in geological exploration.Two-dimensional plane could be projected by three-dimensional cylindrical space in the panoramic range of the borehole wall.Firstly, center and radius of the circle was determined according to the feature of images.Then, rectangular plan was obtained by polar coordinate conversion and interpolation algorithm.Finally, the panoramic images that satisfied the quantitative analysis demand could be matched and stitched by image gray feature similarity criterion and filtering technology.

关 键 词：前视钻孔窥视仪 全景图 环形图像展开 图像拼接 

分 类 号：P631.8[天文地球—地质矿产勘探]