Results 21 to 30 of about 1,765,935 (236)

Wide‐bandwidth signal‐based multireceiver SAS imagery using extended chirp scaling algorithm

open access: yesIET Radar, Sonar & Navigation, 2022
Traditional chirp scaling algorithm is often developed based on the quadratic approximation of point target reference spectrum, which neglects the higher‐order coupling between range and azimuth dimensions.
Xuebo Zhang   +4 more
doaj   +1 more source

Predicting LiDAR Data From Sonar Images [PDF]

open access: yesIEEE Access, 2021
Sensors using ultrasonic sound have proven to provide accurate 3D perception in difficult environments where other modalities fail. Several industrial sectors need accurate and reliable sensing in these harsh conditions. The conventional LiDAR/camera approach in many state-of-the-art autonomous navigation methods is limited to environments with optimal
Niels Balemans   +2 more
openaire   +3 more sources

The Impact of Side-Scan Sonar Resolution and Acoustic Shadow Phenomenon on the Quality of Sonar Imagery and Data Interpretation Capabilities

open access: yesRemote Sensing, 2023
Side-scan sonar is designed and used for a variety of survey work, in both military and civilian fields. These systems provide acoustic imageries that play a significant role in a variety of marine and inland applications.
Artur Grządziel
doaj   +1 more source

Empowering and conquering infirmity of visually impaired using AI‐technology equipped with object detection and real‐time voice feedback system in healthcare application

open access: yesCAAI Transactions on Intelligence Technology, EarlyView., 2023
Abstract The Internet of Things is emerging as a crucial technology in aiding humans and making their lives easier. Among the human population, a large percentage of people suffer from disabilities resulting in challenges in everyday life particularly people with visual disabilities.
Hania Tarik   +8 more
wiley   +1 more source

Combining imaging sonar and photogrammetry for underwater object localization and mapping [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
During the flooding event in September 2024 in Austria, an unknown number of industrial barrels was washed into a freshwater pond near Loosdorf, leading to this study aimed at locating and measuring these barrels.
M. Grömer   +5 more
doaj   +1 more source

Dolphin-inspired target detection for sonar and radar [PDF]

open access: yes, 2014
Gas bubbles in the ocean are produced by breaking waves, rainfall, methane seeps, exsolution, and a range of biological processes including decomposition, photosynthesis, respiration and digestion.
Leighton, T.G.   +3 more
core   +1 more source

Eyes on the water: How local mariners can accurately detect a submerged human proxy in shallow nearshore coastal water with modern recreational fish finders. [PDF]

open access: yesJ Forensic Sci
Abstract It has recently been demonstrated that modern recreational fish finders with high‐frequency (800 kHz) Sidescan transducers can detect submerged human bodies. This ubiquitous technology is widely used on the water and has the potential to be utilized for the rapid detection of submerged decedents in any waterbody.
Martlin BA, Bell LS.
europepmc   +2 more sources

Synthetic aperture sonar imaging using compressive sensing and an ultrasound transducer array [PDF]

open access: yes, 2013
Includes bibliographical references.Compressive sensing (CS) also known as compressive sampling is a technique used to reconstruct or recover the full-length of a signal with only a few non-adaptive measurements.
Jideani, Josiah Chimnanu
core   +1 more source

Interferometric synthetic aperture sonar large scale simulated data benchmark of a ship wreck

open access: yesElectronics Letters, 2023
Interferometric synthetic aperture sonar (InSAS) systems produce high resolution seafloor imagery and 3‐D bathymetry by exploiting the phase differences between image pairs formed from data collected by vertically separated arrays.
Benjamin W. Thomas, Alan J. Hunter
doaj   +1 more source

SONAR Images Denoising

open access: yes, 2011
International ...
Isar, Alexandru   +3 more
openaire   +4 more sources

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