Lecture-13

Lecture-13 - Lecture -13 Making Faces Guenter et al...

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1 Lecture -13 Making Faces Guenter et al SIGGARPH’98
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2 Making Faces • System for capturing 3D geometry and color and shading (texture map). • Six cameras capture 182 color dots (six colors) on a face. • 3D coordinates for each color dot are computed using pairs of images. • Cyberware scanner is used to get dense wire frame model. Making Faces • Two models (cyberware and frame data) are related by a rigid transformation. • Movement of each node in successive frames is computed by determining correspondence of nodes.
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3 Applications • Facial expressions – can be captured in a studio, – delivered via CDROM or internet to a user – reconstructed in real time on a user’s computer in a virtual 3D environment • User can select – any arbitrary position for the face, – any virtual camera view point, – any size Six Views
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4 Color Dots Wireframe Model
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5 Main Steps • 3-D reconstruction from 2-D dots • Correspondence of Cyberware dots (reference) with 3-D frame dots • Frame to frame dot correspondences • Constructing the mesh • Compression of Geometric Data
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Lecture-13 - Lecture -13 Making Faces Guenter et al...

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