Results 1 to 10 of about 24,730 (232)
PI-NLOS: polarized infrared non-line-of-sight imaging
Optics Express, 2023 Passive non-line-of-sight (NLOS) imaging is a promising technique to enhance visual perception for the occluded object hidden behind the wall. Here we present a data-driven NLOS imaging framework by using polarization cue and long-wavelength infrared (LWIR) images.
Hao Liu +8 more
openaire +3 more sources
International Journal on Advanced Science, Engineering and Information Technology, 2023 This paper presents the findings of radio wave characterization based on the measurement data at 5.8 GHz. The measurement data were collected by a testbed channel, which links with the following scenarios: a single tree, a row of trees, a row of trees and a road, a row of trees, a road, and a building.
Md Idris, Ikha Fadzila +3 more
openaire +3 more sources
NLOS-NeuS: Non-line-of-sight Neural Implicit Surface
2023 IEEE/CVF International Conference on Computer Vision (ICCV), 2023 ICCV ...
Fujimura, Yuki +3 more
openaire +3 more sources
Ultrasound synthetic aperture non-line-of-sight imaging. [PDF]
Commun PhysNon-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.
Li T +6 more
europepmc +2 more sources
Multipath-Assisted Ultra-Wideband Vehicle Localization in Underground Parking Environment Using Ray-Tracing. [PDF]
Sensors (Basel)In complex underground parking scenarios, non-line-of-sight (NLOS) obstructions significantly impede positioning signals, presenting substantial challenges for accurate vehicle localization.
Hu S, Guo L, Liu Z, Gao S.
europepmc +2 more sources
A Localization Enhancement Method Based on Direct-Path Identification and Tracking for Future Networks. [PDF]
Sensors (Basel)Localization is one of the essential problems in the Internet of Things (IoT). Dynamic changes in the radio environment may lead to poor localization accuracy or discontinuous localization in non-line-of-sight (NLOS) scenarios.
Huang Y, Zhao Y.
europepmc +2 more sources
Neurodynamic robust adaptive UWB localization algorithm with NLOS mitigation. [PDF]
Sci RepFor the robust localization in mixed line-of-sight (LOS) and non-line-of-sight (NLOS) indoor environments, we proposed a max-min optimization estimator from a measurement model and introduced an adaptive loss function to optimize the estimation. However,
Liu Y, Hu E, Chen Y, Guo C.
europepmc +2 more sources
Sensors, 2021 Under mixed sparse line-of-sight/non-line-of-sight (LOS/NLOS) conditions, how to quickly achieve high positioning accuracy is still a challenging task and a critical problem in the last dozen years.
Chengwen He, Yunbin Yuan, Bingfeng Tan
doaj +1 more source
A Succinct Method for Non-Line-of-Sight Mitigation for Ultra-Wideband Indoor Positioning System
Sensors, 2022 Ultra-wideband (UWB) is a promising indoor position technology with centimetre-level positioning accuracy in line-of-sight (LOS) situations. However, walls and other obstacles are common in an indoor environment, which can introduce non-line-of-sight ...
Ang Liu +3 more
doaj +1 more source
Range-Based Localization for UWB Sensor Networks in Realistic Environments
EURASIP Journal on Wireless Communications and Networking, 2010 The Non-Line of Sight (NLOS) problem is the major drawback for accurate localization within Ultra-Wideband (UWB) sensor networks. In this article, a comprehensive overview of the existing methods for localization in distributed UWB sensor networks under ...
Reiner S. Thomä +3 more
doaj +2 more sources