Results 11 to 20 of about 109,277 (295)
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
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Time-of-arrival–based localization algorithm in mixed line-of-sight/non-line-of-sight environments [PDF]
International Journal of Distributed Sensor Networks, 2020 A novel time-of-arrival–based localization algorithm in mixed line-of-sight/non-line-of-sight environments is proposed. First, an optimization problem of target localization in the known distribution of line-of-sight and non-line-of-sight is established,
Peixin Wang +4 more
doaj +2 more sources
Non-line-of-sight tracking of people at long range [PDF]
Optics Express, 2017 A remote-sensing system that can determine the position of hidden objects has applications in many critical real-life scenarios, such as search and rescue missions and safe autonomous driving. Previous work has shown the ability to range and image objects hidden from the direct line of sight, employing advanced optical imaging technologies aimed at ...
Chan, Susan +4 more
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Multi-Modal Non-Line-of-Sight Passive Imaging [PDF]
IEEE Transactions on Image Processing, 2019 We consider the non-line-of-sight (NLOS) imaging of an object using the light reflected off a diffusive wall. The wall scatters incident light such that a lens is no longer useful to form an image. Instead, we exploit the 4D spatial coherence function to reconstruct a 2D projection of the obscured object. The approach is completely passive in the sense
Andre Beckus +2 more
openaire +4 more sources
Non-Line-of-Sight Beacon Identification for Sensor Localization [PDF]
International Journal of Distributed Sensor Networks, 2012 In recent years, sensors are often deployed to sense the target environment. Besides the sensed environmental information, sensor's position information itself is very important in most cases.
Chunfeng Wan, Akira Mita, Songtao Xue
doaj +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
Deep Non-Line-of-Sight Reconstruction [PDF]
2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2020 Minor editorial update (typos, figure captions)
Grau Chopite, Javier +3 more
openaire +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
Non-line-of-sight imaging with arbitrary illumination and detection pattern [PDF]
, 2022 Non-line-of-sight (NLOS) imaging aims at reconstructing targets obscured from the direct line of sight. Existing NLOS imaging algorithms require dense measurements at rectangular grid points in a large area of the relay surface, which severely hinders ...
Zuoqiang Shi (13247994) +5 more
core +1 more source