序列环带图像处理技术及其应用

结合在地质勘探中的特殊应用,根据深度控制,对井下孔壁四周360°范围的柱面空间投影到像面上得到序列环带图像。根据图像拼接误差理论对相邻图像间重叠区域大小进行选定,用改进的链队列种子填充法寻找环带图像的圆心和半径方向,以一定的角度为步长遍历每一个同心圆,将环带图像展开成矩形图,再用网格匹配法进行相邻图像间的配准,采用平滑因子实现序列图像间的无缝拼接,使之更符合人的观察习惯。

Sequence Annular Image Processing Technology and Its Application

Combining the particular application in geological exploration, by the control of depth, the sequence of images, reflected from the space of entire section(360o) of the borehole wall, is presented as annuals images on the screen. The overlapping part between the two sequence images are chosen based on the theory of image stitching error. A new seed filling method based on link queue is used to find the center and radius of the circle. By traversing every concentric circle according to a given angle, the annular images are expanded into rectangle. Using the overlapped information between two sequence images and grid matching method, it makes the sequence images stitch smoothly which are more convenient for observation.