This paper proposes a framework for interactively deforming 3D mesh models. 3D mesh models are often used in finite element analysis, but existing surface-based deformation methods fail to deform volumetric elements consistently. In the method proposed here, vertices in a 3D mesh model are classified into boundary vertices and interior vertices. Boundary vertices are treated in the same way as ...

We propose a new kind of models, which are called Nonlinear Deformable Superquadric (NDS) models, for representing and reconstructing 3D objects. Instead of linear tapering deformation, a piecewise cubic Bezier spline is used to deform superquadrics. By changing the control points of the spline, the shape of the model is deformed as if it was made of a flexible material. In this manner, we can ...

In this paper we propose a system for 3D face reconstruction from 2D stereo images. Two different stereo matching algorithms are presented; the first is a local method that finds the correspondences of 15 most characteristic facial fiducial points, whose 3D reconstruction allows us to deform a parameterized sparse model. The second method employs a snake grid algorithm which minimizes a multi-r...

Traditional techniques for deforming virtual 3D models require the user to explicitly define a set of control points, a region of interest (ROI), and to define precisely how to deform the ROI using the control points. In this paper we present SEED, a sketch-based 3D model deformation approach, which allows the user to perform a deformation using only a single control stroke, eliminating the nee...