Real-time 3-D imaging using an air-coupled ultrasonic phased-array
We present an air-coupled ultrasonic imaging system based on a 40-kHz 8× 8 phased-array
for 3-D real-time localization of multiple objects in the far-field. By attaching a waveguide to …
for 3-D real-time localization of multiple objects in the far-field. By attaching a waveguide to …
Volumetric ultrasound imaging using 2-D CMUT arrays
Recently, capacitive micromachined ultrasonic transducers (CMUTs) have emerged as a
candidate to overcome the difficulties in the realization of 2-D arrays for real-time 3-D …
candidate to overcome the difficulties in the realization of 2-D arrays for real-time 3-D …
AUV-based underwater 3-D point cloud generation using acoustic lens-based multibeam sonar
This study proposes a 3-D seafloor scanning method using sonar images obtained by an
acoustic lens-based multibeam sonar (ALMS). ALMS is a forward-looking sonar and is …
acoustic lens-based multibeam sonar (ALMS). ALMS is a forward-looking sonar and is …
Accurate underwater ATR in forward-looking sonar imagery using deep convolutional neural networks
L **, H Liang, C Yang - Ieee Access, 2019 - ieeexplore.ieee.org
Underwater automatic target recognition (ATR) is a challenging task for marine robots due to
the complex environment. The existing recognition methods basically use hand-crafted …
the complex environment. The existing recognition methods basically use hand-crafted …
Multiresolution 3-D reconstruction from side-scan sonar images
In this paper, a new method for the estimation of seabed elevation maps from side-scan
sonar images is presented. The side-scan image formation process is represented by a …
sonar images is presented. The side-scan image formation process is represented by a …
A wavelet transform based contrast enhancement method for underwater acoustic images
Dredging the surface of the ocean to identify both living and non living things nowadays has
become an unproblematic task with the help of the acoustic instruments. Side scan sonar is …
become an unproblematic task with the help of the acoustic instruments. Side scan sonar is …
Design of Forward-Looking Sonar System for Real-Time Image Segmentation with Light Multi-Scale Attention Net
D Zhao, H Zhou, P Chen, Y Hu, W Ge… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
Forward-looking sonar is a commonly used underwater detection device. However, due to
the complex underwater environment, small target areas, and blurred features, the detection …
the complex underwater environment, small target areas, and blurred features, the detection …
A self‐consistent bathymetric map** algorithm
The achievable accuracy of bathymetric map** in the deep ocean using robotic systems is
most often limited by the available guidance or navigation information used to combine the …
most often limited by the available guidance or navigation information used to combine the …
Three-dimensional target reconstruction from multiple 2-d forward-scan sonar views by space carving
Building 3-D object models from 2-D images is a key capability for target classification and
identification, reacquisition, and environmental map**, among many applications in …
identification, reacquisition, and environmental map**, among many applications in …
Design and implementation of a real-time multi-beam sonar system based on FPGA and DSP
H Tian, S Guo, P Zhao, M Gong, C Shen - Sensors, 2021 - mdpi.com
Aiming at addressing the contradiction between the high-speed real-time positioning and
multi-channel signal processing in multi-beam sonar systems, in this work we present a real …
multi-channel signal processing in multi-beam sonar systems, in this work we present a real …