关键词: 街景影像, 图像投影, 特征点匹配, 图像变换, 全景拼接

Abstract:  The current mainstream panorama stitching softwares heavily rely on the precision of matched points in street view images in the process of image warping. In order to enhance robustness, the strategy of getting feature points in warped images and transforming them to street view images is adopted. Besides, stitching seams between adjacent images are removed by nonrigid image warping, which is achieved by using Multi-level B-splines Approximation（MBA） algorithm to evaluate displacements of the remaining points with the set of matched feature points. Experiments show that the accuracy of projection and the effect of mosaicing panoramic images improve significantly.

Key words: street view image, projection, feature matching, image warping, panorama mosaicing