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Most of the existing methods adopted in 3D facial expression recognition require manual-intervention, which should be avoided in automatic systems. In this paper, we propose an automatic data normalization method based on the point-to-point mapping between the depth value and the texture information of the facial data. Based on this, we further construct a new kind of 3D facial expression feature,...
Researches on 3D facial expression recognition have been extensively promoted in recent years, yet automatic 3D facial expression recognition is still a challenging problem. In this paper, we propose an easy-handled approach to address this problem and consequently improve its performance. In the approach, a 2D-image-like structure is utilized to represent the 3D models so that we can automatically...
An approach to establish 3D strata model from DEM, borehole, section map, geological map, is presented. In the first step, cross-section is converted into virtual boreholes by discretization processing, and therefore modeling data source is unified to borehole data. The second step is to define the template TIN using boreholes and border of research area, and adjust the template TIN using DEM and...
With a wide range application of 3D geosciences modeling in mineral deposit exploration, dynamic updates of 3D orebody surface models are required to integrate new exploration data like borehole logs. In this paper, we set up a methodology for integrating new exploration data into existing models. General steps of constructing orebody surface models which are expressed as TIN (Triangular Irregular...
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