A simple and stable feature-preserving smoothing method for contours-based reconstructed meshes

Authors:
Kai Xu;Yueshan Xiong;Yanzhen Wang;Ke Tan;Guangyou Guo
Affiliations:
National University of Defense Technology, Changsha, China;National University of Defense Technology, Changsha, China;National University of Defense Technology, Changsha, China;Center for Technique Education, PLA General Hospital, Beijing, China;Center for Technique Education, PLA General Hospital, Beijing, China
Venue:
Proceedings of the 4th international conference on Computer graphics and interactive techniques in Australasia and Southeast Asia
Year:
2006

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Abstract

In this paper, we develop a new feature preserving smoothing method for the irregular and coarse meshes reconstructed from 2D contours. To make the feature detecting robust, a new detecting algorithm using the continuity among adjacent contours is proposed. Then the original mesh is subdivided adaptively according to the detected geometric features and smoothed with isotropic method. With the help of that, our algorithm obtains not only the feature-preserving result of anisotropic methods but also the simple and stable process of isotropic ones. After smoothing, the resolution of mesh can be resumed by moving the vertices in the original mesh to the positions of their corresponding vertices in the smoothed adaptive mesh. For smoothing of contours-based reconstructed meshes, experimental results show that our method can smooth the meshes satisfactorily and preserve their geometric features much better than other implemented methods.