Results 11 to 20 of about 81,206 (179)
Deep Non-Line-of-Sight Imaging Using Echolocation [PDF]
Sensors, 2022 Non-line-of-sight (NLOS) imaging is aimed at visualizing hidden scenes from an observer’s (e.g., camera) viewpoint. Typically, hidden scenes are reconstructed using diffused signals that emit light sources using optical equipment and are reflected ...
Seungwoo Jang +2 more
doaj +4 more sources
Non–line-of-sight imaging over 1.43 km [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2021 Significance Non–line-of-sight (NLOS) imaging can recover details of a hidden scene from the indirect light that has scattered multiple times. Despite recent advances, NLOS imaging has remained at short-range verifications. Here, both experimental and conceptual innovations yield hardware and software solutions to increase NLOS imaging from ...
Cheng Wu, Jianjiang Liu, Xin Huang
exaly +6 more sources
A Single-Shot Non-Line-of-Sight Range-Finder [PDF]
Sensors, 2019 The ability to locate a target around a corner is crucial in situations where it is impractical or unsafe to physically move around the obstruction. However, current techniques are limited to long acquisition times as they rely on single-photon counting ...
James Brooks, Daniele Faccio
doaj +6 more sources
Non-line-of-sight imaging [PDF]
Nature Reviews Physics, 2020 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 direct paths from a source to an object and back to the detector, non-line-of-sight (NLOS) imaging approaches ...
Daniele Faccio +2 more
openaire +4 more sources
Fast back-projection for non-line of sight reconstruction [PDF]
ACM SIGGRAPH 2017 Posters, 2017 Recent works have demonstrated non-line of sight (NLOS) reconstruction by using the time-resolved signal frommultiply scattered light. These works combine ultrafast imaging systems with computation, which back-projects the recorded space-time signal to build a probabilistic map of the hidden geometry. Unfortunately, this computation is slow, becoming a
Arellano, V., Gutierrez, D., Jarabo, A.
openaire +9 more sources
Ultrasound synthetic aperture non-line-of-sight imaging [PDF]
Communications PhysicsNon-line-of-sight (NLOS) imaging typically relies on the use of ultrashort laser pulses and time-resolved detection to then reconstruct 3D environments that are hidden from the direct line-of-sight.
Tailin Li +6 more
doaj +2 more sources
Non-line-of-Sight Imaging via Neural Transient Fields [PDF]
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2021 We present a neural modeling framework for Non-Line-of-Sight (NLOS) imaging. Previous solutions have sought to explicitly recover the 3D geometry (e.g., as point clouds) or voxel density (e.g., within a pre-defined volume) of the hidden scene. In contrast, inspired by the recent Neural Radiance Field (NeRF) approach, we use a multi-layer perceptron ...
Zi Wang, Ping Liu
exaly +4 more sources
A Line of Sight/Non Line of Sight Recognition Method Based on the Dynamic Multi-Level Optimization of Comprehensive Features [PDF]
SensorsWith the advent of the 5G era, high-precision localization based on mobile communication networks has become a research hotspot, playing an important role in indoor emergency rescue in shopping malls, smart factory management and tracking, as well as ...
Ziyao Ma +5 more
doaj +2 more sources
Non-line-of-sight Reconstruction Using Efficient Transient Rendering [PDF]
ACM Transactions on Graphics, 2020 Being able to see beyond the direct line of sight is an intriguing prospect and could benefit a wide variety of important applications. Recent work has demonstrated that time-resolved measurements of indirect diffuse light contain valuable information for reconstructing shape and reflectance properties of objects located around a corner.
Julian Iseringhausen, Matthias B Hullin
exaly +3 more sources
Improving Non-Line-of-Sight Identification in Cellular Positioning Systems Using a Deep Autoencoding and Generative Adversarial Network Model [PDF]
SensorsPositioning service is a critical technology that bridges the physical world with digital information, significantly enhancing efficiency and convenience in life and work.
Yanbiao Gao +3 more
doaj +2 more sources