三维全景图，可作为PV3D的示例数据，来展示360全景。-Three-dimensional panorama, as PV3D example data to show 360 panorama.

采用sift算法的全景图拼接技术的改进，讲解的很详细。如果pdf打不开，就用CAJvieweru-Improved algorithm using sift panorama stitching techniques, explain in great detail. If pdf open, use CAJvieweru