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CVPR
2008
IEEE

Light-invariant fitting of active appearance models

11 years 1 months ago
Light-invariant fitting of active appearance models
This paper deals with shading and AAMs. Shading is created by lighting change. It can be of two types: selfshading and external shading. The effect of self-shading can be explicitly learned and handled by AAMs. This is not however possible for external shading, which is usually dealt with by robustifying the cost function. We take a different approach: we measure the fitting cost in a so-called Light-Invariant space. This approach naturally handles self-shading and external shading. The framework is based on mild assumptions on the scene reflectance and the cameras. Some photometric camera response parameters are required. We propose to estimate these while fitting an existing color AAM in a photometric `self-calibration' manner. We report successful results with a face AAM with test images taken indoor under simple lighting change.
Daniel Pizarro, Julien Peyras, Adrien Bartoli
Added 12 Oct 2009
Updated 28 Oct 2009
Type Conference
Year 2008
Where CVPR
Authors Daniel Pizarro, Julien Peyras, Adrien Bartoli
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