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In this paper we propose a new algorithm of face clustering on triangle meshes, we call it balanced hierarchical face clustering (BHFC for short). Given a triangle mesh model, the algorithm iteratively generates a binary tree of face clusters on it. Each cluster consists of a set of connected faces. At every iteration, two connected clusters are chosen according to these rules we define, and they...
This paper proposes a parametric solid representation of freeform tubular objects - Ball B-Spline Curves (BBSCs), which are skeleton based parametric solid model. Their fundamental properties, algorithms and modeling methods are investigated. BBSC directly defines objects in B-Spline function form (not a procedure method, like sweeping), that uses control ball instead of control point in B-Spline...
There were some difficulties when applying current geometric deformable models to color image segmentation. In order to solve the problem, different edge detectors are compared, and then CGAC - an improved geometric deformable model is developed by applying a new edge detector from Di Zenzo multivalued geometry of color image to GAC. The experimental results show that when applying GAC channel by...
In this paper, we present an interactive system for quickly and easily modeling 3D trees with ball B- spline curves(BBSCs). As BBSCs are flexible for modifying, deforming and editing, these methods provide intuitive interaction and more freedom for users to model trees interactively. These interactive methods can also be used in conjunction with other methods like generating tree models through L-...
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