为了快速精确地建立建筑实体的三维模型,提出了一种混合建模系统中的单目视觉求解算法.该方法从二维图片数据中提取三维实体的边缘轮廓,并附加约束条件,以构造三维实体的空间参数约束方程,然后通过求解得到实体的空间坐标参数,再利用纹理提取及转换等技术,来实现从照片到计算机中三维真实感实体的创建.实验表明,该求解模型建模效率高、实用性强,能够用于大多数建筑实体的建模.

In order to construct three dimension model of architectural solid, a new solution method for geometrical model based on single-vision of hybrid modeling system has been developed. In this method, edge profiles were pickup from image first. Space parameter equations of 3D solid was constructed by adding additional restriction condition. By solving the equations, space coordination and others parameter of 3D solid was obtained. At last, visual reality was achieved by introducing texture pickup and transition technique. Experiments has proved that the method has high modeling efficiency and wide practicability. It can be used for modeling of most