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DTSTAMP:20250110T023313Z
LOCATION:Hall B5 (2)\, B Block\, Level 5
DTSTART;TZID=Asia/Tokyo:20241206T132300
DTEND;TZID=Asia/Tokyo:20241206T133400
UID:siggraphasia_SIGGRAPH Asia 2024_sess146_papers_203@linklings.com
SUMMARY:Polarimetric BSSRDF Acquisition of Dynamic Faces
DESCRIPTION:Technical Papers\n\nHyunho Ha and Inseung Hwang (Korea Advance
 d Institute of Science and Technology (KAIST)), Nestor Monzon (Universidad
  de Zaragoza - I3A), Jaemin Cho and Donggun Kim (Korea Advanced Institute 
 of Science and Technology (KAIST)), Seung-Hwan Baek (POSTECH), Adolfo Muño
 z and Diego Gutierrez (Universidad de Zaragoza - I3A), and Min H. Kim (Kor
 ea Advanced Institute of Science and Technology (KAIST))\n\nAcquisition an
 d modeling of polarized light reflection and scattering help reveal the sh
 ape, structure, and physical characteristics of an object, which is increa
 singly important in computer graphics. However, current polarimetric acqui
 sition systems are limited to static and opaque objects. Human faces, on t
 he other hand, present a particularly difficult challenge, given their com
 plex structure and reflectance properties, the strong presence of spatiall
 y-varying subsurface scattering, and their dynamic nature. We present a ne
 w polarimetric acquisition method for dynamic human faces, which focuses o
 n capturing spatially varying appearance and precise geometry, across a wi
 de spectrum of skin tones and facial expressions. It includes both single 
 and heterogeneous subsurface scattering, index of refraction, and specular
  roughness and intensity, among other parameters, while revealing biophysi
 cally-based components such as inner- and outer-layer hemoglobin, eumelani
 n and pheomelanin. Our method leverages such components' unique multispect
 ral absorption profiles to quantify their concentrations, which in turn in
 form our model about the complex interactions occurring within the skin la
 yers. To our knowledge, our work is the first to simultaneously acquire po
 larimetric and spectral reflectance information alongside biophysically-ba
 sed skin parameters and geometry of dynamic human faces. Moreover, our pol
 arimetric skin model integrates seamlessly into various rendering pipeline
 s.\n\nRegistration Category: Full Access, Full Access Supporter\n\nLanguag
 e Format: English Language\n\nSession Chair: Valentin Deschaintre (Adobe R
 esearch)
URL:https://asia.siggraph.org/2024/program/?id=papers_203&sess=sess146
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