Imperial College London
Alternate

ProfessorAbhijeetGhosh

Faculty of Engineering, Department of Computing

Professor of Graphics and Imaging
 
 
 
//

Contact

 

+44 (0)20 7594 8351abhijeet.ghosh Website

 
 
//

Location

 

376Huxley BuildingSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Wilson:2010:10.1145/1731047.1731055,
author = {Wilson, CA and Ghosh, A and Peers, P and Chiang, J-Y and Busch, J and Debevec, P},
doi = {10.1145/1731047.1731055},
journal = {ACM Transactions on Graphics},
pages = {1--11},
title = {Temporal upsampling of performance geometry using photometric alignment},
url = {http://dx.doi.org/10.1145/1731047.1731055},
volume = {29},
year = {2010}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - <jats:p>            We present a novel technique for acquiring detailed facial geometry of a dynamic performance using extended spherical gradient illumination. Key to our method is a new algorithm for            <jats:italic>jointly</jats:italic>            aligning two photographs, under a gradient illumination condition and its complement, to a full-on tracking frame, providing dense temporal correspondences under changing lighting conditions. We employ a two-step algorithm to reconstruct detailed geometry for            <jats:italic>every</jats:italic>            captured frame. In the first step, we coalesce information from the gradient illumination frames to the full-on tracking frame, and form a temporally aligned photometric normal map, which is subsequently combined with dense stereo correspondences yielding a detailed geometry. In a second step, we propagate the detailed geometry back to every captured instance guided by the previously computed dense correspondences. We demonstrate reconstructed dynamic facial geometry, captured using moderate to video rates of acquisition, for every captured frame.          </jats:p>
AU  - Wilson,CA
AU  - Ghosh,A
AU  - Peers,P
AU  - Chiang,J-Y
AU  - Busch,J
AU  - Debevec,P
DO  - 10.1145/1731047.1731055
EP  - 11
PY  - 2010///
SN  - 0730-0301
SP  - 1
TI  - Temporal upsampling of performance geometry using photometric alignment
T2  - ACM Transactions on Graphics
UR  - http://dx.doi.org/10.1145/1731047.1731055
VL  - 29
ER  -
Download