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TZID:Asia/Tokyo
X-LIC-LOCATION:Asia/Tokyo
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DTSTART:18871231T000000
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BEGIN:VEVENT
DTSTAMP:20250110T023312Z
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:Technical Papers\n\nOscar Pueyo-Ciutad and Julio Marco (Univer
 sidad de Zaragoza - I3A); Stephane Schertzer, Frank Christnacher, and Mart
 in Laurenzis (French-German Research Institute of Saint-Louis); and Diego 
 Gutierrez and Albert Redo-Sanchez (Universidad de Zaragoza - I3A)\n\nWe pr
 opose a novel method to reconstruct non-line-of-sight (NLOS) scenes that c
 ombines polarization and time-of-flight light transport measurements. Unpo
 larized NLOS imaging methods reconstruct objects hidden around corners by 
 inverting time-gated indirect light paths measured at a visible relay surf
 ace, but fail to reconstruct scene features depending on their position an
 d orientation with respect to such surface. We address this limitation (kn
 own as the missing cone problem) by capturing the polarization state of li
 ght in time-gated imaging systems at picosecond time resolution, and intro
 ducing a novel inversion method that leverages directionality information 
 of polarized measurements to reduce directional ambiguities in the reconst
 ruction. Our method is capable of imaging features of hidden surfaces insi
 de the missing cone space of state-of-the-art NLOS methods, yielding fine 
 reconstruction details even when using a fraction of measured points on th
 e relay surface. We demonstrate the benefits of our method in both simulat
 ed and experimental scenarios.\n\nRegistration Category: Full Access, Full
  Access Supporter\n\nLanguage Format: English Language\n\nSession Chair: Q
 i Sun (New York University)
URL:https://asia.siggraph.org/2024/program/?id=papers_230&sess=sess119
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