基于SURF-球面模型的岩心图像拼接

Core Images Stitching Based on SURF Algorithm and Spherical Model

提出一种基于SURF-球面模型的岩心图像拼接算法。通过特征点匹配,建立球面模型,将待拼接岩心图像投影到同一球面,合并成完整的岩心图像;根据拍摄模式及岩心图像本身的特点,在特征点匹配过程中,使用SURF算法并指定图像特征检测区域,快速提取和匹配特征点;最后进行多分辨率融合,消除拼接缝,完成岩心图像的无缝拼接。实验表明本文的方法在岩心图像拼接中能达到较好的拼接效果。

A core panorama generation algorithm based on spherical model was presented.A spherical model by matched feature points was established,then the core images was projected to the same view spherical,a complete core panoramic image was stitched.According to the shooting mode and the features of the core images themselves,the SURF algorithm and region of interest are used to improve the interest points detection speed and correct match rate.With a variety of image fusion algorithms to solve the apparent seam problem,and ultimately the seamless stitching of core images is achieved.Experimental results show that the method can generate good stitching images.