more recently, as a result of the availability of fast, inexpensive graphics hardware and effective technologies, the reconstruction of 3d models has become one of the most interesting subjects in both computer vision and computer graphics applications 近些年来,由于快速、廉价图形硬件和高效的图形算法的不断涌现,“3d模型重建”在计算机图形应用领域中已经成为了热点研究方向之一。