Results 21 to 30 of about 1,913,452 (223)
Application of 3D imaging sonar in defect detection of underwater bored piles
Yantu gongcheng xuebao, 2021 The pile foundation is an important part of bridge engineering. The underwater structure of pile foundation has some quality problems such as concrete spalling and damage.
JI Tong-yuan 1, 2, LI Peng-fei 2, ZHANG Run 2, ZHANG Ding-wen 1, 3
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Wide‐bandwidth signal‐based multireceiver SAS imagery using extended chirp scaling algorithm
IET 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
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CAAI 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
Remote 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
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Combining imaging sonar and photogrammetry for underwater object localization and mapping [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesDuring 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
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Dolphin-inspired target detection for sonar and radar [PDF]
, 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
Synthetic aperture sonar imaging using compressive sensing and an ultrasound transducer array [PDF]
, 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
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A New Denoising System for SONAR Images
EURASIP Journal on Image and Video Processing, 2009 The SONAR images are perturbed by speckle noise. The use of speckle reduction filters is necessary to optimize the image exploitation procedures. This paper presents a new denoising method in the wavelet domain, which tends to reduce the speckle, preserving the structural features and textural information of the scene. Shift-invariance associated with
Isar, Alexandru +2 more
openaire +4 more sources
Interferometric synthetic aperture sonar large scale simulated data benchmark of a ship wreck
Electronics 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
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