Results 291 to 300 of about 1,235,187 (346)

A Theory of Fermat Paths for Non-Line-Of-Sight Shape Reconstruction

Computer Vision and Pattern Recognition, 2019
We present a novel theory of Fermat paths of light between a known visible scene and an unknown object not in the line of sight of a transient camera. These light paths either obey specular reflection or are reflected by the object's boundary, and hence ...
Shumian Xin, Sotiris Nousias, Kiriakos N. Kutulakos, Aswin C. Sankaranarayanan, S. Narasimhan, Ioannis Gkioulekas   +5 more
semanticscholar   +1 more source

Highlights 2021: line of sight

The Lancet, 2021
Joanna Palmer, Chandrakant Lahariya, Hawanatu Jah, Fatoumata Kongira, Yahaya Idris, Savannah Dodd, Melita M Nasca, James Clifford Kent, Hugo Rolando Gonzalez Cárdenas, Alexander Kumar, Saverio Bellizzi, Kwaku Ohene-Frempong, Folafoluwa Odetola, Nicolas Beaumont, Samantha Kumara Senavirathna, Saranga Dinusha Geeganage, Padmakumari Abeysinghe, Himmatrao Saluba Bawaskar, Promodini Himmatrao Bawaskar, Pearl Gan, Menaka Hapugoda, Sanjib Kumar Sharma, KV Balasubramanya, Manoj Kumar Pati, Swaroop N   +24 more
openaire   +2 more sources

Line-of-Sight Handbook

1977
Abstract : This handbook contains measured line-of-sight (LOS) data for 12 types of terrain and vegetation combinations. The terrain/vegetation types are identified or classified with word descriptions, topographic maps, and aerial and ground photographs.
Judith H. Lind, Carol J. Burge
openaire   +1 more source

Performance of an underwater non-line-of-sight (NLOS) wireless optical communications system utilizing LED

Journal of Optics, 2023
M. Ali, F. Shaker
semanticscholar   +1 more source

Line of Sight Analysis

The Line of Sight (LoS) is one of the latest tools to join the analytics suite of tools for the Solar System Treks (https://trek.nasa.gov) portals.  The LoS tool provides a way to compute visibility between the entities in our solar system. More concretely, this utility searches for windows of communication or a “line of sight& ...
Emily Law, Natalie Gallegos, Shan Malhotra   +2 more
openaire   +1 more source

High-resolution non-line-of-sight imaging employing active focusing

Nature Photonics, 2022
R. Cao, Frederic de Goumoens, Baptiste Blochet, Jian Xu, Changhuei Yang   +4 more
semanticscholar   +1 more source

Line-of-Sight Wideband Propagation

1973
Abstract : REPORT DOCUMENTS WORK CARRIED OUT IN THREE INTERRELATED TECHNICAL AREAS: STUDY OF CHANNEL MEASUREMENT TECHNIQUES, MODELING THE MULTIPATH STRUCTURE OF LINE-OF-SIGHT TROPOSPHERIC PATHS, AND PREDICTION OF SPREAD SPECTRUM MODEM PERFORMANCE AS A FUNCTION OF MULTIPATH CONDITIONS.
Charles J. Boardman, Joseph K. DeRosa, Phillip A. Bello   +2 more
openaire   +1 more source

Non-Line-of-Sight Imaging

Optics and Photonics News, 2019
Computational imaging techniques, sensitive photon detectors and considerable imagination are creating techniques for 3-D imaging of objects around corners and behind walls.
openaire   +1 more source

A UAV-Assisted Search and Localization Strategy in Non-Line-of-Sight Scenarios

IEEE Internet of Things Journal, 2022
Bingbing Yuan, R. He, B. Ai, Ruifeng Chen, Gongpu Wang, Jianwen Ding, Z. Zhong   +6 more
semanticscholar   +1 more source

Line-of-sight Computation

2009
In this chapter we discuss the problem of calculating line-of-sight (LOS) between objects located at different points of a given digital-elevation-model. This problem finds practical application in many areas of civil engineering, military tactical command and control, cellular operators, wind-turbine positioning and even ray-tracing.
openaire   +1 more source