Title :
A new symmetric shape from shading algorithm with an application to 3-D face reconstruction
Author :
Ahmed, Abdelrehim ; Farag, Aly ; Starr, Thomas
Author_Institution :
Comput. Vision & Image Process. Lab. (CVIP), Univ. of Louisville, Louisville, KY
Abstract :
This paper presents a new symmetric shape from shading (SFS) algorithm where the self-ratio image irradiance equation proposed by Zhao and Chellappa is formulated as a partial differential equation (PDE) with a Dirichlet boundary condition. This PDE is solved using the Lax-Friedrichs sweeping method. The potential of the proposed symmetric SFS algorithm is demonstrated by several experiments on synthetic and real data. As an application, the proposed algorithm is used for 3-D face reconstruction.
Keywords :
boundary-value problems; face recognition; image reconstruction; partial differential equations; 3D face reconstruction; Dirichlet boundary condition; Lax-Friedrichs sweeping method; partial differential equation; self-ratio image irradiance equation; symmetric shape-from-shading algorithm; Brightness; Differential equations; Face; Image reconstruction; Iterative algorithms; Nonlinear equations; Partial differential equations; Rough surfaces; Shape; Surface roughness; Lax-Friedrichs sweeping method; Shape from shading; self-ratio image;
Conference_Titel :
Image Processing, 2008. ICIP 2008. 15th IEEE International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-1765-0
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2008.4711726
