Optical Sensors and Sensing Congress

19 July 2021 – 23 July 2021
Optica Virtual Event - Pacific Daylight/Summer Time (UTC - 07:00)

Non-line-of-Sight Imaging (CW5B)

Presider: Prasanna Rangarajan, Southern Methodist University
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13:00 - 13:30
(UTC - 07:00)

Computational Imaging, One Photon at a Time (CW5B.1)
Presenter: Mohit Gupta, University of Wisconsin

Abstract not available.

Authors:Mohit Gupta, University of Wisconsin

13:30 - 14:00
(UTC - 07:00)

Imaging the World One Photon at a Time (CW5B.2)
Presenter: Matthew O'Toole, Carnegie Mellon University

Single-photon avalanche diodes (SPADs) are revolutionizing the space of computational imaging. We will discuss the new imaging applications enabled by SPADs, including transient imaging, 3D sensing from single-photon measurements, and non-line-of-sight imaging.

Authors:Matthew O'Toole, Carnegie Mellon University

14:00 - 14:15
(UTC - 07:00)

Multipath temporal echoes for reconstructing spatial scenes (CW5B.3)
Presenter: Valentin Kapitany, University of Glasgow

We find evidence that multipath temporal echoes provide significantly more information of a scene than direct reflections, enabling the reconstruction of 3D scenes with a single-pixel detector. This is demonstrated in radio-frequency and acoustic experiments.

Authors:Valentin Kapitany, University of Glasgow / Alex Turpin, University of Glasgow / Jack Radford, University of Glasgow / Davide Rovelli, University of Glasgow / Kevin Mitchell, University of Glasgow / Ashley Lyons, University of Glasgow / Ilya Starshynov, University of Glasgow / Daniele Faccio, University of Glasgow

  Paper

14:15 - 14:30
(UTC - 07:00)

The Imaging Operator in Indirect Imaging Correlography (CW5B.4)
Presenter: Muralidhar Madabhushi Balaji, Southern Methodist University

The work presents a mathematical model for the imaging operator in Non-Line-of-Sight Imaging using Indirect Imaging Correlography. The model is used to analyze the impact of object pose and obliquity on system performance, through a series of simulations and experiments.

Authors:Muralidhar Madabhushi Balaji, Southern Methodist University / Jiapeng Liu, Southern Methodist University / Danyal Ahsanullah, Southern Methodist University / Prasanna Rangarajan, Southern Methodist University

  Paper

14:30 - 14:45
(UTC - 07:00)

Depth Estimation of Non-line-of-sight Objects from Scattered Light Enhanced by the Infrared Light Field (CW5B.5)
Presenter: Takahiro Sasaki, University of Minnesota Twin Cities

We experimentally demonstrate depth estimation of human temperature NLOS objects from infrared light scattered off a construction wall. The measured IR light field is used to enhance the weak scattered signature and to perform depth estimation.

Authors:Takahiro Sasaki, University of Minnesota Twin Cities / Connor Hashemi, University of Minnesota Twin Cities / James Leger, University of Minnesota Twin Cities

  Paper