[back to virtual lives' animation]
Free-Form Deformation with Automatically Generated Multiresolution Lattices
Yutaka Ono1
Bing-Yu Chen1
Tomoyuki Nishita1
Jieqing Feng2
1The University of Tokyo
2Zhejang University
Abstract
Developing intuitive and efficient methods for shape editing is one
of the most important areas in computer graphics, and free-form
deformation (FFD), which is one of such methods, allows the user to
deform a model easily by moving a set of control points,
collectively called the lattice. Although the FFD method can be used
for both global and local deformations, the user must define a
suitable lattice manually or use a simple shaped lattice such as a
parallelepiped. Therefore, we propose a new FFD method that
automatically generates the lattices with which both types of
deformations can be achieved.
Our method refines a bounding box of the model and generates a set
of finer lattices, which hierarchically ap-proximate the shape of
the model. Through adjusting the control points of the generated
lattices, both global and local deformations of the model can be
achieved easily. Moreover, the method allows hierarchical
deformation of the model by combining different levels of lattice.
Citation (bibTex)
Yutaka Ono, Bing-Yu Chen, Tomoyuki Nishita, and Jieqing Feng.
Free-Form Deformation with Automatically Generated Multiresolution Lattices.
IEEE Cyberworlds 2002 Conference Proceedings,
p.472 - p.479, 2002.
Paper
CW 2002 paper (928KB PDF)
Video
720x480 DivX Avi (4.25MB)
last update:
by robin -a-t- ntu.edu.tw