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Related papers: Non-Line-of-Sight Passive Acoustic Localization Ar…

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The ability to form non-line-of-sight (NLOS) images of changing scenes could be transformative in a variety of fields, including search and rescue, autonomous vehicle navigation, and reconnaissance. Most existing active NLOS methods…

Image and Video Processing · Electrical Eng. & Systems 2026-03-12 Sheila Seidel , Hoover Rueda-Chacon , Iris Cusini , Federica Villa , Franco Zappa , Christopher Yu , Vivek K Goyal

Non-line-of-sight (NLOS) imaging is a rapidly growing field seeking to form images of objects outside the field of view, with potential applications in search and rescue, reconnaissance, and even medical imaging. The critical challenge of…

The detection and localization of a source hidden outside the Line-of-Sight (LOS) traditionally rely on the acquisition of indirect signals, such as those reflected from visible relay surfaces such as floors or walls. These reflected…

Sound · Computer Science 2025-06-11 Tal I. Sommer , Ori Katz

Optical imaging through diffusive, visually-opaque barriers, and around corners is an important challenge in many fields, ranging from defense to medical applications. Recently, novel techniques that combine time-of-flight (TOF)…

Optics · Physics 2023-05-12 Jeremy Boger-Lombard , Ori Katz

Non-line-of-sight (NLOS) imaging is an emerging technique for detecting objects behind obstacles or around corners. Recent studies on passive NLOS mainly focus on steady-state measurement and reconstruction methods, which show limitations…

Computer Vision and Pattern Recognition · Computer Science 2023-06-05 Conghe Wang , Yutong He , Xia Wang , Honghao Huang , Changda Yan , Xin Zhang , Hongwei Chen

Conventional sensor systems record information about directly visible objects, whereas occluded scene components are considered lost in the measurement process. Non-line-of-sight (NLOS) methods try to recover such hidden objects from their…

Computer Vision and Pattern Recognition · Computer Science 2020-10-12 Nicolas Scheiner , Florian Kraus , Fangyin Wei , Buu Phan , Fahim Mannan , Nils Appenrodt , Werner Ritter , Jürgen Dickmann , Klaus Dietmayer , Bernhard Sick , Felix Heide

Emerging single-photon-sensitive sensors combined with advanced inverse methods to process picosecond-accurate time-stamped photon counts have given rise to unprecedented imaging capabilities. Rather than imaging photons that travel along…

Optics · Physics 2020-05-19 D. Faccio , A. Velten , G. Wetzstein

Seeing around corners, also known as non-line-of-sight (NLOS) imaging is a computational method to resolve or recover objects hidden around corners. Recent advances in imaging around corners have gained significant interest. This paper…

Image and Video Processing · Electrical Eng. & Systems 2019-10-15 Tomohiro Maeda , Guy Satat , Tristan Swedish , Lagnojita Sinha , Ramesh Raskar

Non-line-of-sight (NLOS) imaging relies on collecting light that is rendered incoherent from the multiple scattering events and is then post-processed to provide an estimate of the hidden scene. Here we employ coherent phase control of the…

Optics · Physics 2019-12-25 Ilya Starshynov , Omair Ghafur , James Fitches , Daniele Faccio

Non-line-of-sight (NLOS) imaging and tracking is an emerging technology that allows the shape or position of objects around corners or behind diffusers to be recovered from transient, time-of-flight measurements. However, existing NLOS…

Computer Vision and Pattern Recognition · Computer Science 2021-01-06 Christopher A. Metzler , David B. Lindell , Gordon Wetzstein

Conventional intensity cameras recover objects in the direct line-of-sight of the camera, whereas occluded scene parts are considered lost in this process. Non-line-of-sight imaging (NLOS) aims at recovering these occluded objects by…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Wenzheng Chen , Simon Daneau , Fahim Mannan , Felix Heide

Non-line-of-sight (NLOS) optical imaging and sensing of objects imply new capabilities valuable to autonomous technology, machine vision, and other applications. Existing NLOS imaging methods rely heavily on the prowess of computational…

Optics · Physics 2022-07-21 Shenyu Zhu , Yong Meng Sua , Patrick Rehain , Yu-Ping Huang

Non-line-of-sight (NLOS) imaging is based on capturing the multi-bounce indirect reflections from the hidden objects. Active NLOS imaging systems rely on the capture of the time of flight of light through the scene, and have shown great…

Image and Video Processing · Electrical Eng. & Systems 2022-04-19 Jiayong Peng , Fangzhou Mu , Ji Hyun Nam , Siddeshwar Raghavan , Yin Li , Andreas Velten , Zhiwei Xiong

Non-line-of-sight (NLOS) imaging enables monitoring around corners and is promising for diverse applications. The resolution of transient NLOS imaging is limited to a centimeter scale, mainly by the temporal resolution of the detectors.…

As an emerging technology that has attracted huge attention, non-line-of-sight (NLOS) imaging can reconstruct hidden objects by analyzing the diffuse reflection on a relay surface, with broad application prospects in the fields of…

Image and Video Processing · Electrical Eng. & Systems 2021-11-23 Ruixu Geng , Yang Hu , Yan Chen

Time-of-Flight non-line-of-sight (ToF NLOS) imaging techniques provide state-of-the-art reconstructions of scenes hidden around corners by inverting the optical path of indirect photons scattered by visible surfaces and measured by…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Julio Marco , Adrian Jarabo , Ji Hyun Nam , Alberto Tosi , Diego Gutierrez , Andreas Velten

Non-Line-of-Sight (NLOS) imaging reconstructs the shape and depth of hidden objects from picosecond-resolved transient signals, offering potential applications in autonomous driving, security, and medical diagnostics. However, current NLOS…

Non-line-of-sight (NLOS) imaging techniques use light that diffusely reflects off of visible surfaces (e.g., walls) to see around corners. One approach involves using pulsed lasers and ultrafast sensors to measure the travel time of…

Computer Vision and Pattern Recognition · Computer Science 2020-08-07 Mariko Isogawa , Dorian Chan , Ye Yuan , Kris Kitani , Matthew O'Toole

Non-Line-of-Sight (NLOS) imaging aims at recovering the 3D geometry of objects that are hidden from the direct line of sight. In the past, this method has suffered from the weak available multibounce signal limiting scene size, capture…

Computer Vision and Pattern Recognition · Computer Science 2022-02-01 Ji Hyun Nam , Eric Brandt , Sebastian Bauer , Xiaochun Liu , Eftychios Sifakis , Andreas Velten

We present a novel sound localization algorithm for a non-line-of-sight (NLOS) sound source in indoor environments. Our approach exploits the diffraction properties of sound waves as they bend around a barrier or an obstacle in the scene.…

Robotics · Computer Science 2018-09-21 Inkyu An , Doheon Lee , Jung-woo Choi , Dinesh Manocha , Sung-eui Yoon
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