Results 11 to 20 of about 950,179 (281)
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 ...
Arellano, Victor +2 more
core +8 more sources
Onsite Non-Line-of-Sight Imaging via Online Calibration
IEEE Photonics Journal, 2022 There has been increasing interest in deploying non-line-of-sight (NLOS) imaging systems for recovering objects hidden behind corners. Existing solutions need to calibrate the imaging system using auxiliary apparatus and additional detectors.
Zhengqing Pan +8 more
doaj +3 more sources
Non-line-of-sight imaging over 1.43 km. [PDF]
Proc Natl Acad Sci U S A, 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 ...
Wu C +11 more
europepmc +5 more sources
Non-line of Sight Transient Rendering
Jornada de Jóvenes Investigadores del I3A, 2022 Non-line of sight imaging reconstructs hidden geometry using time-resolved measurements of indirect diffuse reflections emitted by a laser. To help develop new applications, we simulate light transport in these occluded scenes and introduce a set of simple, yet effective subpath sampling techniques for efficiency, with an open-source implementation.
Royo, Diego +3 more
openaire +4 more sources
Reconfigurable beam system for non-line-of-sight free-space optical communication [PDF]
Light: Science and Applications, 2019 Zizeng Cao +2 more
exaly +2 more sources
Line-of-sight and non-line-of-sight links for dispersive terahertz wireless networks
APL Photonics, 2021 Despite the rapidly growing interest in exploiting millimeter and terahertz waves for wireless data transfer, the role of reflected non-line-of-sight (NLOS) paths in wireless networking is one of the least explored questions.
Yasaman Ghasempour +4 more
doaj +1 more source
Path Loss Measurements and Model Analysis in an Indoor Corridor Environment at 28 GHz and 38 GHz
Sensors, 2022 This paper examines the large-scale path loss models for an indoor corridor environment at frequencies of 28 and 38 GHz. The measurement environment consists of an indoor corridor with both line-of-sight (LOS) and non-line of sight (NLOS) scenarios using
Tolulope T. Oladimeji +2 more
doaj +1 more source
Experimental Analysis of Spatial Modulation Systems in Mixed LOS/NLOS Scenarios
IEEE Access, 2022 Spatial modulation (SM) as a multiple-input multiple-output (MIMO) technique is a solution suitable which offers, with low system complexity and cost, improved spectral efficiency compared to single-input-single-output (SISO) systems.
Yanni Zhou +2 more
doaj +1 more source
Harris hawks optimization algorithm and BP neural network for ultra-wideband indoor positioning
Mathematical Biosciences and Engineering, 2022 Traditional back propagation neural networks (BPNNs) for ultrawideband (UWB) indoor localization can effectively improve localization accuracy, although there is high likelihood of becoming trapped in nearby minima.
Xiaohao Chen +4 more
doaj +1 more source
Drones, 2022 Unmanned air vehicles (UAVs) used as aerial base stations (ABSs) can provide communication services in areas where cellular network is not functional due to a calamity.
Abdul Basit Siddiqui +4 more
doaj +1 more source