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Facial expression tracking is a challenging task because the head pose may change in a large range and the expression is highly non-rigid. It can be formulized as an energy minimization problem. The two most important issues are the construction of the cost function and the selection of the initial value. In this paper, we present a fast and robust expression tracking algorithm called Composite Constraints...
Sectional views are widely used in engineering practice due to their clear and concise expression. However, it is difficult for computers to understand because of the large numbers of omitted entities and their diversified representations. This paper aims at reconstructing 3D models from 2D sectional views by improving the traditional volume based method. First, we present a two-stage loop searching...
Sectional views are widely used in engineering practice due to their clear and concise expression. However, large numbers of entities are missing in sectional views that makes it hard for computer to understand drawings. Feature identification is the key procedure for solids reconstruction from sectional views. Based on the analysis of the default drawing rules appearing in sectional views, a new...
In this paper, regarding the Great Majesty Hall of the NanPutuo Temple as a virtual modeling object, the research on the new technology of 3D reconstruction of the ancient architecture has been done, in which 3DS MAX and MultiGen Creator were applied. The conflict was solved between precision and the amount of data existing in the process of 3D modeling virtual ancient architecture. The practical...
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