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TZID:Asia/Tokyo
X-LIC-LOCATION:Asia/Tokyo
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DTSTAMP:20260817T171534Z
LOCATION:Hall B5 (2)\, B Block\, Level 5
DTSTART;TZID=Asia/Tokyo:20241204T154100
DTEND;TZID=Asia/Tokyo:20241204T155500
UID:siggraphasia_SIGGRAPH Asia 2024_sess119_papers_230@linklings.com
SUMMARY:Time-Gated Polarization for Active Non-Line-Of-Sight Imaging
DESCRIPTION:Oscar Pueyo-Ciutad and Julio Marco (Universidad de Zaragoza - 
 I3A); Stephane Schertzer, Frank Christnacher, and Martin Laurenzis (French
 -German Research Institute of Saint-Louis); and Diego Gutierrez and Albert
  Redo-Sanchez (Universidad de Zaragoza - I3A)\n\nWe propose a novel method
  to reconstruct non-line-of-sight (NLOS) scenes that combines polarization
  and time-of-flight light transport measurements. Unpolarized NLOS imaging
  methods reconstruct objects hidden around corners by inverting time-gated
  indirect light paths measured at a visible relay surface, but fail to rec
 onstruct scene features depending on their position and orientation with r
 espect to such surface. We address this limitation (known as the missing c
 one problem) by capturing the polarization state of light in time-gated im
 aging systems at picosecond time resolution, and introducing a novel inver
 sion method that leverages directionality information of polarized measure
 ments to reduce directional ambiguities in the reconstruction. Our method 
 is capable of imaging features of hidden surfaces inside the missing cone 
 space of state-of-the-art NLOS methods, yielding fine reconstruction detai
 ls even when using a fraction of measured points on the relay surface. We 
 demonstrate the benefits of our method in both simulated and experimental 
 scenarios.\n\nRegistration Category: Full Access, Full Access Supporter\n\
 nLanguage Format: English Language\n\nSession Chair: Qi Sun (New York Univ
 ersity, Google)\n\n
URL:https://asia.siggraph.org/2024/program/?id=papers_230&sess=sess119
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