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Recovering Shape and Reflectance Model of Non-lambertian Objects from Multiple Views
 

Summary: Recovering Shape and Reflectance Model of Non-lambertian
Objects from Multiple Views
Tianli Yu, Ning Xu and Narendra Ahuja
Electrical and Computer Engineering Department
University of Illinois at Urbana-Champaign
{tianli, ningxu, ahuja}@vision.ai.uiuc.edu
Abstract
This paper proposes an algorithm to simultaneously
estimate both the 3D shape and parameters of a
surface reflectance model from multiple views of an
object made of a single material. The algorithm is
based on a multiple view shape from shading method.
The shape of the object is represented by a triangular
mesh. The Phong reflectance model is used to model
the surface reflectance. We iteratively find the shape
and reflectance parameters that best fit all input
images. The estimates of shape and reflectance model
are gradually refined by subdividing triangles in the
mesh into smaller ones. The estimation takes into
account both self-occlusion and self-shadowing.

  

Source: Ahuja, Narendra - Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign

 

Collections: Computer Technologies and Information Sciences; Engineering