An Artistic Portrait Caricature Model

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An Artistic Portrait Caricature Model

• Vincent Boyer
• G.R.I.S A.I.Lab

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• Introduction
• Caricature Model
• Rendering
• Results and Conclusion

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Introduction

• Cranofacial anthropometry vs aesthetic ideals
• Canon
• Hand-like line drawing

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Caricature Model

• Canon
• Caricature modeling
• Rendering

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Canon
Height of the head 7dh/2 Lower lips
dh/2 Lower part of the Nose dh Top of the eyes
and the ears 2dh Top of the forehead
3dh Width of the head 5dv/2 Left limit of the
left eye dv/2 Right limit of the left eye
dv Left limit of the right eye 3dv/2 Right
limit of the left eye 2dv
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Caricature modeling

• 1-Half-edge data structure
• 2-Bounding box
• 3-Creation of the canon
• 4-Detection of significant parts
• 5-Generation of a new triangle mesh

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Significant parts

• Eyes
• Eyebrows
• Nose
• Nose bone
• Triangle mesh of the nose
• Shape of the head

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Rendering

• NPR style (hand-like line drawing) Sousa03
• Extraction of silhouette, creases, border edges
• Creation of graphs, generation of list of chains
• Creation of B-Splines (significant parts)
• Kind of edge
• Measure of curvature

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Results
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Conclusion

• Model to design artistic portrait caricature
• 3D models
• 3D deformed mesh using a canon
• Real-time rendering (hand-like line drawing)