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Published Articles >> Table of Contents >> Abstract
Second International Symposium on 3D Data Processing, Visualization and Transmission (3DPVT'04)
pp. 183-190
Acquiring Height Maps of Faces from a Single Image
Mario Castelán, University of York, UK
Edwin R. Hancock, University of York, UK
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DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TDPVT.2004.1335193
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| Abstract |
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In this paper we explore how to improve the quality of the
height map recovered from faces using shape-from-shading.
One of the problems with reliable face surface reconstruction
using shape-from-shading is that local errors in the
needle map can cause implosion of facial features, and in
particular the nose. To overcome this problem in this paper
we develop a method for ensuring surface convexity.
This is done by modifying the gradient orientations in accordance
with critical points on the surface. We utilize a
local shape indicator as a criteria to decide which surface
normals are to be modified. Experiments show that altering
the directions of a surface normal field of a face leads to a
considerable improvement in its integrated height map.
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 Additional Information
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Citation:
Mario Castelán, Edwin R. Hancock,
"Acquiring Height Maps of Faces from a Single Image,"
3dpvt,
pp. 183-190,
Second International Symposium on 3D Data Processing, Visualization and Transmission (3DPVT'04),
2004
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