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Strokes of Chinese characters are extracted from a picture of calligraphy work by image processing methods. By analyzing the stroke's centerline location, width, constriction velocity and curvature, a feature matrix is constructed. By editing the feature matrix, we synthesize images of Chinese calligraphy in new styles.
Collision detection is the key technologies in nose augmentation surgery simulation system, which can avoid incorrect intersection between bones and the implant model. In this paper, we present a sphere-tree based hierarchical collision detection algorithm (STHCD) for surgery simulation. Each model is represented as a clustered hierarchy of sphere tree (CHST). Graphics processing unit (GPU)-based...
Simulation and three-dimensional visualization of object motion is a prerequisite for any surgical planning system. Orbital hypertelorism is a disease, which is most commonly associated with craniofacial malformations. We have developed a surgical planning system for planning and evaluation of orbital hypertelorism surgery. In our system CT-based virtual surface models fitted by oriented bounding...
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