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

@article{Gitlina:2020:10.1111/cgf.14055,
author = {Gitlina, Y and Guarnera, GC and Dhillon, DS and Hansen, J and Lattas, A and Pai, D and Ghosh, A},
doi = {10.1111/cgf.14055},
journal = {Computer Graphics Forum: the international journal of the Eurographics Association},
pages = {75--89},
title = {Practical measurement and reconstruction of spectral skin reflectance},
url = {http://dx.doi.org/10.1111/cgf.14055},
volume = {39},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We present two practical methods for measurement of spectral skin reflectance suited for live subjects, and drive a spectral BSSRDF model with appropriate complexity to match skin appearance in photographs, including human faces. Our primary measurement method employs illuminating a subject with two complementary uniform spectral illumination conditions using a multispectral LED sphere to estimate spatially varying parameters of chromophore concentrations including melanin and hemoglobin concentration, melanin blendtype fraction, and epidermal hemoglobin fraction. We demonstrate that our proposed complementary measurements enable higherquality estimate of chromophores than those obtained using standard broadband illumination, while being suitable for integration with multiview facial capture using regular color cameras. Besides novel optimal measurements under controlled illumination, we also demonstrate how to adapt practical skin patch measurements using a handheld dermatological skin measurement device, a Miravex Antera 3D camera, for skin appearance reconstruction and rendering. Furthermore, we introduce a novel approach for parameter estimation given the measurements using neural networks which is significantly faster than a lookup table search and avoids parameter quantization. We demonstrate high quality matches of skin appearance with photographs for a variety of skin types with our proposed practical measurement procedures, including photorealistic spectral reproduction and renderings of facial appearance.
AU  - Gitlina,Y
AU  - Guarnera,GC
AU  - Dhillon,DS
AU  - Hansen,J
AU  - Lattas,A
AU  - Pai,D
AU  - Ghosh,A
DO  - 10.1111/cgf.14055
EP  - 89
PY  - 2020///
SN  - 0167-7055
SP  - 75
TI  - Practical measurement and reconstruction of spectral skin reflectance
T2  - Computer Graphics Forum: the international journal of the Eurographics Association
UR  - http://dx.doi.org/10.1111/cgf.14055
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000550055800007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://onlinelibrary.wiley.com/doi/full/10.1111/cgf.14055
UR  - http://hdl.handle.net/10044/1/81662
VL  - 39
ER  -
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