T. Francis Chen
T. Francis Chen works at Google and he is currently a Visiting Researcher at
the Natural Phenomena Simulation Group (University of Waterloo). He received
his Ph.D. from the University of Waterloo in 2016 with a focus on simulation
of light interactions with human skin. He has broader academic interests in
various topics from computer graphics and computer vision. He has
non-academic interests in airplanes and video games.
Ph.D. Thesis
Master's Thesis
Book Chapters
 Baranoski, G.V.G.; Chen, T.F.; Krishnaswamy, A.
Multilayer Modeling of Skin Color and Translucency ( preprint)
In: Computational Biophysics of the Skin, Chapter 1, pp. 3-24
Editor: Bernard Querleux,
Pan Stanford Publishing, July, 2014.
Print ISBN: 978-9-81-446384-3
eBook ISBN: 978-9-81-446385-0

Baranoski, G.V.G.; Chen; T.F.
Optical Properties of Skin Surface
In: Agache's Measuring the Skin, 2nd Edition, Volume 1, Chapter 9, pp. 85-98.
Editors: Philippe Humbert, Howard Maibach, Ferial Fanian and Pierre Agache,
Springer International Publishing, Cham, Switzerland, 2017.
Print ISBN: 978-3-319-32381-7
Publications in Journals and Conferences
- Baranoski, G.V.G.; Van Leeuwen, S.R.; Chen, T.F.
On the Sensitivity of Skin Spectral Responses
to Variations in the Thickness of the Cutaneous Tissues
(Video)
In: Proceedings of the 43rd Annual International Conference of the IEEE
Engineering in Medicine and Biology Society (EMBC),
Virtual Conference, November, 2021, pp. 4263-4267.
- Baranoski, G.V.G.; Alencar, P.; Van Leeuwen, S.R.; Chen, T.F.
Tanning-Elicited Variations in
the Ultraviolet Absorption Spectra of the Cutaneous Tissues: Skin Photobiology
and Photomedicine Implications
(Errata & Video)
In: Proceedings of the 43rd Annual International Conference of the IEEE
Engineering in Medicine and Biology Society (EMBC),
Virtual Conference, November, 2021, pp. 4268-4273.
- Chen, T.F.; Baranoski, G.V.G.;
A Physiologically-Based Framework for the Simulation of Skin Tanning Dynamics
(Preprint,
Video &
Presentation Slides)
Proc. of SPIE, Vol. 10877, Dynamics and Fluctuations in Biomedical
Photonics XVI: Tissue and Cell Dynamics
SPIE Photonics West – BiOS, San Francisco, USA
Eds. V.V. Tuchin, M.J. Leahy, R.W. Wang, March, 2019, pp. 108770H-1-20.
- Baranoski, G.V.G.; Chen, T.F., Van Leeuwen, S.R.
Unveiling the Impact of Distinct Melanosome
Arrangements on the Attenuation of Cancer-Inducing Ultraviolet Radiation
In: Proceedings of the 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC),
Honolulu, HI, USA, July, 2018, pp. 6153-6157.
- Baranoski, G.V.G.; Chen, T.F., Varsa, P.
On the Effective Differentiation and Monitoring
of Variable Degrees of Hyperbilirubinemia Severity Through Noninvasive Screening Protocols
In: Proceedings of the 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC),
Honolulu, HI, USA, July, 2018, pp. 4981-4986.
- Kravchenko,B.; Baranoski,G.V.G; Chen,T.F.; Miranda,E.; Van Leeuwen,S.R.
High-fidelity iridal light transport simulations at interactive rates
(video)
Computer Animation and Virtual Worlds, Volume 28, Issue 3-4, pp. May/August, 2017
(Presented at the Computer Animations and Social Agents - CASA 2017)
- Baranoski, G.V.G.; Van Leeuwen, S.R.; Chen, T.F.
Elucidating the Biophysical Processes Responsible for the Chromatic Attributes of Peripheral Cyanosis
In: Proceedings of the 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC),
Jeju Island, Republic of Korea, July, 2017, pp. 90-95.
-
Baranoski, G.V.G.; Van Leeuwen, S.R.; Chen, T.F.
In Silico Analysis of Decomposed Reflectances of C3 and C4 Plants Aiming at the Effective Assessment of Crop Needs
Journal of Applied Remote Sensing, Volume 11, Issue 2, pp. 026012:1-13, 2017.
- Baranoski, G.V.G.; Van Leeuwen, S.R.; Chen, T.F.
On the Detection of Peripheral Cyanosis in Individuals with Distinct Levels of Cutaneous Pigmentation
In: Proceedings of the 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC),
Jeju Island, Republic of Korea, July, 2017, pp. 4260-4264.
- Baranoski, G.V.G.; Van Leeuwen, S.R.; Chen, T.F.
On the Detection and Monitoring of Reduced Water Content
in Plants Using Spectral Responses in the Visible Domain
Proc. of SPIE, Vol. 9877, Land Surface and Cryosphere Remote Sensing III,
2016 Asia-Pacific Remote Sensing Conference, New Delhi, India.
Eds. A.S. Rajawat and J.M. Chen, pp. 98770N-1-11, April, 2016.
- Baranoski, G.V.G.; Van Leeuwen, S.R.; Chen, T.F.
On the Decomposition of Foliar Hyperspectral Signatures for
the High-fidelity Discrimination and Monitoring of Crops
Proc. of SPIE, Vol. 9880, Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques and Applications VI,
2016 Asia-Pacific Remote Sensing Conference, New Delhi, India.
Eds. A.M. Larar, P. Chauhan, M. Suzuki and J. Wang, pp. 98800G-1-10, April, 2016.
- Baranoski,G.V.G.; Dey, A.; Chen,T.F.
Assessing the Sensitivity of Human Skin Hyperspectral Responses to Increasing Anemia Severity Levels
Journal of Biomedical Optics, Volume 20, Issue 9, pp. 095002-1-095002-14, September 2015.
- Baranoski,G.V.G.; Chen,T.F.
Multispectral Index for the Remote Detection of Human Skin Signatures (Errata)
Optical Engineering, Volume 54, Issue 7, pp. 070502:1-3, July 2015.
- Chen,T.F.; Baranoski,G.V.G.
Effective Compression and Reconstruction of Human Skin Hyperspectral Reflectance Databases
In: Proceedings of the 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC),
Milan, Italy, August, 2015, pp. 7027-7030.
- Chen,T.F.; Baranoski,G.V.G.
Melanosome Distribution Patterns Affecting Skin Reflectance: Implications for the In Vivo Estimation of Epidermal Melanin Content
In: Proceedings of the 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC),
Milan, Italy, August, 2015, pp. 4415-4418.
- Baranoski,G.V.G.; Chen,T.F.
On the Identification and Interpretation of Human Skin Spectral Responses Under Adverse Environmental Conditions (Errata)
In: Proceedings of the 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC),
Milan, Italy, August, 2015, pp. 845-848.
- Chen, T.F.; Baranoski, G.V.G.; Kimmel, B.W.; Miranda, E.
Hyperspectral Modeling of Skin Appearance
(Supplemental Material & Video)
ACM Transactions on Graphics, Volume 34, Issue 3, pp 31:1-31:14, April, 2015.
(Presented at SIGGRAPH 2015.)
- Baranoski, G.V.G.; Kimmel, B.W.; Chen, T.F.; Miranda, E.
Assessing the Spectral Sensitivity of Martian Terrains to Iron Oxide Variations Using the SPLITS Model
(Supplemental Information &
Errata)
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Volume 8, Number 7, pp. 3404-3413, July, 2015.
- Baranoski, G.V.G.; Kimmel, B.W.; Chen, T.F.; Miranda, E.
Influence of Sand-Grain Morphology and Iron-Oxide Distribution Patterns on the Visible and Near-Infrared Reflectance of Sand-Textured Soils
(Supplemental Information)
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Volume 7, Number 9, pp. 3755-3763, September, 2014.
- Baranoski,G.V.G.; Kimmel,B.W.; Chen,T.F.; Miranda.E.
Simulating the Spectral Properties of Iron-Bearing Regions of Mars Using the SPLITS Model
(Errata)
Proceedings of 2014 IEEE International Geoscience & Remote Sensing Symposium - IGARSS 2014
Quebec City, Quebec, July 13-18, 2014, pp. 3013-3016.
- Baranoski,G.V.G.; Kimmel, B.W.; Chen, T.F.; Miranda.E.; Yim,D.
Effects of Sand Grain Shape on the Spectral Signature of Sandy Landscapes in the Visible Domain
Proceedings of
2013 IEEE International Geoscience & Remote Sensing Symposium - IGARSS 2013
Melbourne, Australia, July 21-26, 2013, pp. 3060-3063.
-
- Baranoski,G.V.G.; Chen,T.F.; Kimmel,B.; Miranda,E.; Yim,D.
On the high-fidelity monitoring of C3 and C4 crops under nutrient and water stress (postprint)
2012 Asia-Pacific Remote Sensing Conference, Kyoto, Japan
Proc. of SPIE, Vol. 8524, Land Surface Remote Sensing
Eds. D. Entekhabi, Y. Honda, H. Sawada, J. Shi, pp. 85240W-1-9, 2012.
- Baranoski,G.V.G.; Chen,T.F.; Kimmel,B.; Miranda,E.; Yim,D.
On the noninvasive optical monitoring and differentiation of methemoglobinemia and sulfhemoglobinemia
(Errata for Fig. 2)
Journal of Biomedical Optics*, Volume 17, Number 9, pp. 097005-1-097005-14, 2012.
- Baranoski,G.V.G.; Dimson, T.; Chen,T.F.; Kimmel,B.; Yim,D.; Miranda,E.
Rapid Dissemination of Light Transport Models on the Web
IEEE Computer Graphics & Applications, Volume 32, Number 3, pp. 10-15, 2012.
- Yim, D.; Baranoski, G.V.G.; Kimmel, B.W.; Chen, T.F.; Miranda, E.
A Cell-Based Light Interaction Model for Human Blood (video),
Computer Graphics Forum, Volume 31, Number 2, pp. 845-854, 2012.
(Proceedings of EUROGRAPHICS 2012**, Cagliari, Italy.)
- Baranoski, G.V.G.; Kimmel, B.W.; Chen, T.F.; Yim, D.
In Silico Assessment of Environmental Factors Affecting
the Spectral Signature of C4 Plants in the Visible Domain
(Errata for Table 1)
(Errata for Table 3)
International Journal of Remote Sensing, Volume 33, Number 4, pp. 1190-1213, February, 2012.
- Chen,T.F.; Baranoski,G.V.G.
Extending the Educational Scope of a Particle-Based Simulation Framework through Parallelization
In: Proceedings of the IEEE 2010 International Conference on High Performance Computing & Simulation - HPCS 2010,
Caen, France, pp. 115-124, June-July, 2010.
- Chen,T.F.; Baranoski,G.V.G.; Lin,K.F.
Bulk scattering approximations for HeNe laser transmitted through paper
Optics Express***, Volume 16, Issue 26, pp. 21762-21771, December, 2008.
*According to the Thomson Scientific rankings for journal citations, this journal has the fifth highest 5-year impact factor in the optics field in 2011.
**Acceptance rate of 25%.
***This journal was ranked top 3 for impact factor in the field of optics in 2008, according to the Thomson Scientific rankings for journal citations.
Technical Reports
- Baranoski,G.V.G.; Chen,T.F.
On the Remote Detection of Human Skin Signatures
Technical Report CS-2014-25, School of Computer Science, University of Waterloo, December 2014.
- Dey, A.; Baranoski,G.V.G.; Chen,T.F.
On the Assisted Assessment of Anemia and Bilirubinemia Conditions
Technical Report CS-2014-18, University of Waterloo, November 2014.
- Dey, A.; Baranoski,G.V.G.; Chen,T.F.
An Introduction to Anemia and Bilirubinemia
Technical Report CS-2014-17, University of Waterloo, November 2014.
- Chen, T.F.; Baranoski, G.V.G.; Kimmel, B.W.; Miranda, E.
On the Hyperspectral Modeling of Light Interaction with Human Skin
Technical Report CS-2013-14, School of Computer Science, University of Waterloo, December 2013.
- Baranoski,G.V.G.; Chen,T.F.; Kimmel,B.; Miranda,E.; Yim,D.
In Silico Spectral Investigation of Methemoglobin and Sulfhemoglobin Effects on Human Skin Reflectance
Technical Report CS-2012-09, University of Waterloo, June 2012.
- Yim,D.; Baranoski,G.V.G.; Kimmel,B.; Chen,T.F.; Miranda,E.
On the Modeling of Light Interaction with Human Blood
Technical Report CS-2011-30, University of Waterloo, December 2011.
- Chen,T.F.
Medical Image Segmentation using Level Sets
Technical Report CS-2008-12, University of Waterloo, May 2008.
- Chen,T.F.; Baranoski,G.V.G.
BSim: A System for Three-Dimensional Visualization of Brownian Motion
Technical Report CS-2006-41, University of Waterloo, November 2006.
Research Related Images
(Click for larger images)
- A Physiologically-Based Framework for the Simulation of Skin Tanning Dynamics
- Hyperspectral Modeling of Skin Appearance
- Extending the Educational Scope of a Particle-Based Simulation Framework through Parallelization

- Bulk Scattering Approximations for HeNe Laser Transmitted Through Paper

Research Related Videos
(Click image to view the video)
- A Physiologically-Based Framework for the Simulation of Skin Tanning Dynamics
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Hyperspectral Modeling of Skin Appearance
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