3D Architectural Modeling: Coarse-to-fine model fitting on point cloud

We present a coarse-to-fine model fitting approach that automatically generates a detailed CAD like model from a point cloud. We first developed a library of detailed parametric models for each of the architectural elements. The parameter estimate of these models is obtained using an efficient 3D shape fitting and peak finding approach that operates on the planar and 1D projections of the point clouds The approach performs coarse-to-fine veals intrinsic details resulting in efficient and accurate parameter estimation significantly increases the amount of details in the recovered 3D model.