Composition of Texture Atlases for 3D Mesh Multi-texturing

There is an increasing need of easy and affordable technologies to automatically generate virtual 3D models from their real counterparts. In particular, 3D human reconstruction has driven the creation of many clever techniques, most of them based on the visual hull (VH) concept. Such techniques do not require expensive hardware; however, they tend to yield 3D humanoids with realistic bodies but mediocre faces, since VH cannot handle concavities. On the other hand, structured light projectors allow to capture very accurate depth data, and thus to reconstruct realistic faces, but they are too expensive to use several of them. We have developed a technique to merge a VH-based 3D mesh of a reconstructed humanoid and the depth data of its face, captured by a single structured light projector. By combining the advantages of both systems in a simple setting, we are able to reconstruct realistic 3D human models with believable faces.Index Terms -3D reconstruction, human 3D models, visual hull, structured light, 3D mesh merging.

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Face Lift Surgery for Reconstructed Virtual Humans

Pagés¹,

Arnaldo²,

Morán³

2011

2011 International Conference on Cyberworlds

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Abstract-We introduce an innovative, semi-automatic method to transform low resolution facial meshes into high definition ones, based on the tailoring of a generic, neutral human head model, designed by an artist, to fit the facial features of a specific person. To determine these facial features we need to select a set of "control points" (corners of eyes, lips, etc.) in at least two photographs of the subject's face. The neutral head mesh is then automatically reshaped according to the relation between the control points in the original subject's mesh through a set of transformation pyramids. The last step consists in merging both meshes and filling the gaps that appear in the previous process. This algorithm avoids the use of expensive and complicated technologies to obtain depth maps, which also need to be meshed later.

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Composition of Texture Atlases for 3D Mesh Multi-texturing

Cited by 4 publications

References 9 publications

Automatic system for virtual human reconstruction with 3D mesh multi-texturing and facial enhancement

Automatic system for virtual human reconstruction with 3D mesh multi-texturing and facial enhancement

3D facial merging for virtual human reconstruction

Face Lift Surgery for Reconstructed Virtual Humans

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