基于算子系统的渐进式图像建模方法*

提出了一个基于单幅或多幅未校准图像的渐进交互式三维建模方法及相应系统。该方法的主要特点在于，按照一般人的建模习惯，由粗到细地通过图像重建目标三维模型，在确定大致形状的基础上，由用户添加或者修改投影约束与空间约束，并施加拓扑修改，逐步实现照相机定标，粗糙模型的求精，并最终完成对具有任意几何及拓扑物体的重建。在交互过程中，实时地求解几何参数与照相机投影矩阵，并在一个三维窗口中显示重建结果。

Interactive Progressive Operator-based IBM System

This paper presents an interactive progressive modeling approach and system based on single or multiple photo images of unknown camera parameters. The distinct feature of this approach is to reconstruct the 3D model of target from images progressively in accordance with the general modeling conventions. Namely, user firstly determines the rough model and puts projection and spatial constraints on it as well as topological operations step by step to let the system recover the camera parameters and refine the model. By this means, user can recover the model with arbitrary geometry and topology. During the interaction, the reconstructed results can be computed and displayed instantly.