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Virtual calligraphic carving through smoothness scalar field and brush-pressure distribution


Hengyuan Zhang, State Key Laboratory of Virtual Reality Technology and Systems, School of Computer Science and Engineering, Beihang University, Beijing, China.



Virtual calligraphic carving aims to generate 3D virtual carving works from 2D calligraphic images. This paper proposes a method of virtual calligraphic carving taking calligraphic carving work as a depth map composed of smoothness scalar field and brush-pressure distribution, which ensures the smoothness of carving surface and interprets the strength of calligraphy, respectively. On one hand, the smoothness scalar field is modeled as a bounded planar scalar field with sources and constructed by applying a series of algorithms. On the other hand, the brush-pressure distribution is represented by a map created by estimating the touching pressures employed by brush on paper. Then the depth map is composed of the smoothness scalar field and brush-pressure distribution map and rendered into a virtual calligraphic carving work. The experiments show that this method can generate virtual calligraphic carving works that are vivid and very similar to that of artists. Copyright © 2012 John Wiley & Sons, Ltd.