Underwater 3D measurements with advanced camera modelling

C Bräuer-Burchardt, C Munkelt, M Heinze… - PFG–Journal of …, 2022 - Springer
A novel concept of camera modelling for underwater 3D measurements based on stereo
camera utilisation is introduced. The geometrical description of the ray course subject to …

Feature-enhanced beamforming for underwater 3-D acoustic imaging

S Wang, C Chi, P Wang, S Zhao… - IEEE Journal of …, 2022 - ieeexplore.ieee.org
A planar array of sensors and beamforming algorithms are required for underwater 3-D
acoustic imaging system. However, due to limited aperture and sensor numbers …

Improving performance of three-dimensional imaging sonars through deconvolution

P Wang, C Chi, J Liu, H Huang - Applied Acoustics, 2021 - Elsevier
Abstract Three-dimensional (3D) imaging sonars are becoming increasingly important for
ocean investigation and exploitation. To date, 3D imaging sonars employ a conventional …

[HTML][HTML] Development of a 2-d array ultrasonic transducer for 3-d imaging of objects immersed in water

EP Rodrigues, TF De Oliveira, MY Matuda… - Sensors (Basel …, 2021 - ncbi.nlm.nih.gov
Most works that address 2-D array ultrasonic transducers for underwater applications are
about the geometry aspects of the array and beamforming techniques to make 3-D images …

Compressive beamforming based on multiconstraint Bayesian framework

C Li, T Zhou, Q Guo, HL Cui - IEEE Transactions on Geoscience …, 2021 - ieeexplore.ieee.org
Compressive sensing (CS) is a promising technique recognized for its merits in recovering
sparse signals with enhanced resolution entailing specific constraints. In recasting the CS …

Fast compressive beamforming with a modified fast iterative shrinkage-thresholding algorithm

S Wang, C Chi, S Jin, P Wang, J Liu… - The Journal of the …, 2021 - pubs.aip.org
Compressive beamforming has been successfully applied to direction-of-arrival estimation
with sensor arrays. The results demonstrated that this technique achieves superior …

Orthogonal Linear Array based Product Beamforming for Real Time Underwater 3D Acoustical Imaging

MM Menakath, MR Panicker - arXiv preprint arXiv:2411.09197, 2024 - arxiv.org
Ocean exploration using acoustical 3D imaging is gaining popularity as it provides
information about the 3D geometry of the targets even under mild turbid conditions. A major …

k-Wave as a Modelling Tool for Underwater Acoustical Imaging

MM Menakath, MR Panicker… - OCEANS 2022, Hampton …, 2022 - ieeexplore.ieee.org
Underwater acoustical imaging is fast becoming a popular option for ocean exploration.
However, it is very challenging and expensive to conduct elaborate experiments to validate …

[HTML][HTML] Motion compensation using joint-sub-band phase unwrapping for synthetic aperture sonar

S Chen, C Chi, P Zhang, P Wang, Y Li, J Liu… - JASA Express …, 2022 - pubs.aip.org
Motion compensation using joint-sub-band phase unwrapping for synthetic aperture sonar |
JASA Express Letters | AIP Publishing Skip to Main Content Umbrella Alt Text Umbrella Alt Text …

[HTML][HTML] Development of a 2-D array ultrasonic transducer for 3-D imaging of objects immersed in water

E Patricio Rodrigues, T Francisco de Oliveira… - Sensors, 2021 - mdpi.com
Most works that address 2-D array ultrasonic transducers for underwater applications are
about the geometry aspects of the array and beamforming techniques to make 3-D images …