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Surface height recovery using heat flow and manifold embedding
conference contribution
posted on 2004-09-20, 00:00 authored by Antonio Robles-KellyAntonio Robles-Kelly, Edwin R HancockWe make two contributions to the problem of shape-from-shading. First, we develop a new method for surface normal recovery. We pose the problem as that of solving the steady state heat equation subject to the hard constraint that Lambert's law is satisfied. According to this picture, the surface normals are found by taking the gradient of a scalar field. The heat equation for the scalar field can be solved using simple finite difference methods and leads to an iterative procedure for surface normal estimation. The second contribution is to show how surface height recovery from the field of surface normals can be posed as one of low dimensional embedding. We experiment with the resulting method on a variety of real-world image data, where it produces qualitatively good reconstructed surfaces.
History
Event
3DPVT 3D Data Processing, Visualization and Transmission. International Symposium (2nd : 2004 : Thessaloniki, Greece)Pagination
860 - 867Publisher
IEEE Computer SocietyLocation
Thessaloniki, GreecePlace of publication
Los Alamitos, Calif.Publisher DOI
Start date
2004-09-06End date
2004-09-09ISBN-10
0-7695-2223-8Language
engPublication classification
E1.1 Full written paper - refereedCopyright notice
2004, IEEEEditor/Contributor(s)
Yiannis Aloimonos, Gabriel TaubinTitle of proceedings
3DPVT : Proceedings of the 2nd International Symposium on 3D Data Processing, Visualization and TransmissionUsage metrics
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