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ACM SIGGRAPH 2017 Emerging Technologies, 2017
The sensing of objects hidden behind an occluder is a fascinating emerging area of research and expected to have an impact in numerous application fields such as automobile safety, remote observation or endoscopy. In the past, this problem has consistently been solved with the use of expensive time-of-flight technology and often required a long ...
Jonathan Klein +3 more
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The sensing of objects hidden behind an occluder is a fascinating emerging area of research and expected to have an impact in numerous application fields such as automobile safety, remote observation or endoscopy. In the past, this problem has consistently been solved with the use of expensive time-of-flight technology and often required a long ...
Jonathan Klein +3 more
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Optics and Photonics News, 2019
Computational imaging techniques, sensitive photon detectors and considerable imagination are creating techniques for 3-D imaging of objects around corners and behind walls.
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Computational imaging techniques, sensitive photon detectors and considerable imagination are creating techniques for 3-D imaging of objects around corners and behind walls.
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Non-line-of-sight multiscatter propagation model
Journal of the Optical Society of America A, 2009A propagation model that describes the characteristics of multiscatter radiation in atmosphere is presented. The model is based on the Monte Carlo method; each scattering process is set as an event of probability. LOWTRAN7 is used to calculate the atmospheric coefficients, and Mie theory is used to calculate the scattering characteristics of the ...
Hongwei, Yin +4 more
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Confocal non-line-of-sight imaging
ACM SIGGRAPH 2018 Talks, 2018Non-line-of-sight (NLOS) imaging aims at recovering the shape of objects hidden outside the direct line of sight of a camera. In this work, we report on a new approach for acquiring time-resolved measurements that are suitable for NLOS imaging. The system uses a confocalized single-photon detector and pulsed laser.
Matthew O'Toole +2 more
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Acoustic Non-Line-Of-Sight Imaging
2019 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2019Non-line-of-sight (NLOS) imaging enables unprecedented capabilities in a wide range of applications, including robotic and machine vision, remote sensing, autonomous vehicle navigation, and medical imaging. Recent approaches to solving this challenging problem employ optical time-of-flight imaging systems with highly sensitive time-resolved ...
David B. Lindell +2 more
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Polarized Non-Line-of-Sight Imaging
2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2020This paper presents a method of passive non-line-of-sight (NLOS) imaging using polarization cues. A key observation is that the oblique light has a different polarimetric signal. It turns out this effect is due to the polarization axis rotation, a phenomena which can be used to better condition the light transport matrix for non-line-of-sight imaging ...
Kenichiro Tanaka +2 more
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Thermal Non-Line-of-Sight Imaging
2019 IEEE International Conference on Computational Photography (ICCP), 2019We propose a novel non-line-of-sight (NLOS) imaging framework with long-wave infrared (IR). At long-wave IR wavelengths, certain physical parameters are more favorable for high-fidelity reconstruction. In contrast to prior work in visible light NLOS, at long-wave IR wavelengths, the hidden heat source acts as a light source. This simplifies the problem
Tomohiro Maeda +3 more
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Passive Non-Line-of-Sight Imaging Using Optimal Transport
IEEE Transactions on Image Processing, 2022Passive non-line-of-sight (NLOS) imaging has drawn great attention in recent years. However, all existing methods are in common limited to simple hidden scenes, low-quality reconstruction, and small-scale datasets. In this paper, we propose NLOS-OT, a novel passive NLOS imaging framework based on manifold embedding and optimal transport, to reconstruct
Ruixu Geng +6 more
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Non-Line-of-Sight Cloud-Scatter Communication
Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, 2009We report novel low bit rate non-line-of-sight optical free space communication over 200 km employing forward scattering from clouds with 134 dB link loss and mid-path scatter gain of 10 dBi.
Rex Moncur +3 more
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Real-time non-line-of-sight imaging
ACM SIGGRAPH 2018 Emerging Technologies, 2018Non-line-of-sight (NLOS) imaging aims at recovering the shape of objects hidden outside the direct line of sight of a camera. In this work, we report on a new approach for acquiring time-resolved measurements that are suitable for NLOS imaging. The system uses a confocalized single-photon detector and pulsed laser.
Matthew O'Toole +2 more
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