Imperial College London
Alternate

ProfessorAbhijeetGhosh

Faculty of Engineering, Department of Computing

Professor of Graphics and Imaging
 
 
 
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Contact

 

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

 
 
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Location

 

376Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Kim:2016:10.2312/sre.20161204,
author = {Kim, J and Izadi, S and Ghosh, A},
doi = {10.2312/sre.20161204},
publisher = {The Eurographics Association},
title = {Single-shot layered reflectance separation using a polarized light field camera},
url = {http://dx.doi.org/10.2312/sre.20161204},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - We present a novel computational photography technique for single shot separation of diffuse/specular reflectance as wellas novel angular domain separation of layered reflectance. Our solution consists of a two-way polarized light field (TPLF)camera which simultaneously captures two orthogonal states of polarization. A single photograph of a subject acquired withthe TPLF camera under polarized illumination then enables standard separation of diffuse (depolarizing) and polarizationpreserving specular reflectance using light field sampling. We further demonstrate that the acquired data also enables novelangular separation of layered reflectance including separation of specular reflectance and single scattering in the polarizationpreserving component, and separation of shallow scattering from deep scattering in the depolarizing component. We applyour approach for efficient acquisition of facial reflectance including diffuse and specular normal maps, and novel separationof photometric normals into layered reflectance normals for layered facial renderings. We demonstrate our proposed singleshot layered reflectance separation to be comparable to an existing multi-shot technique that relies on structured lighting whileachieving separation results under a variety of illumination conditions.
AU  - Kim,J
AU  - Izadi,S
AU  - Ghosh,A
DO  - 10.2312/sre.20161204
PB  - The Eurographics Association
PY  - 2016///
SN  - 1727-3463
TI  - Single-shot layered reflectance separation using a polarized light field camera
UR  - http://dx.doi.org/10.2312/sre.20161204
UR  - http://hdl.handle.net/10044/1/33298
ER  -
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