Book ChapterDOI
A 3D Underwater Acoustic Camera — Properties and Applications
R. K. Hansen,P. A. Andersen +1 more
- pp 607-611
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TLDR
The offshore activities in the North Sea have motivated the development of a 3D acoustic camera, and conventional 2D sonars are not capable of providing a real time view of the volume in front of an underwater vehicle.Abstract:
The offshore activities in the North Sea have motivated the development of a 3D acoustic camera. It is considered important to avoid the use of divers subsea and instead develop advanced remotely controlled machines and sensing devices. Also, water turbidity is high in many areas and the operation of conventional video is often restricted. Furthermore, conventional 2D sonars are not capable of providing a real time view of the volume in front of an underwater vehicle.read more
Citations
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Journal ArticleDOI
Three-dimensional image generation and processing in underwater acoustic vision
Vittorio Murino,Andrea Trucco +1 more
TL;DR: The state of-the art of the techniques and algorithms for acoustic image generation and processing are established, providing technical details and results for the most promising techniques, and pointing out the potential capabilities of this technology for underwater scene understanding are established.
Journal ArticleDOI
Opti-Acoustic Stereo Imaging: On System Calibration and 3-D Target Reconstruction
TL;DR: This paper proposes methods for system calibration and 3-D scene reconstruction by maximum likelihood estimation from noisy image measurements, and utilizes as initial condition a closed- form solution that integrates the advantages of two other closed-form solutions, referred to as the range and azimuth solutions.
Journal ArticleDOI
Devising an Affordable Sonar System for Underwater 3-D Vision
TL;DR: The preliminary design and assessment of a high-resolution 3-D acoustic imaging system based on a sparse planar array of sensors, which is particularly intended for underwater applications, are presented.
Journal ArticleDOI
Registration of multiple acoustic range views for underwater scene reconstruction
TL;DR: A new global registration technique to distribute registration errors evenly across all views, and a statistically sound thresholding to improve ICP robustness against noise and nonoverlapping data is introduced.
Book ChapterDOI
Model Acquisition by Registration of Multiple Acoustic Range Views
TL;DR: A statistically sound thresholding (the X84 rejection rule) is introduced to improve ICP robustness against noise and non-overlapping data and a new global registration technique is proposed to distribute registration errors evenly across all views.
References
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Journal ArticleDOI
Introduction to Fourier Optics
Joseph W. Goodman,Mary E. Cox +1 more
TL;DR: The second edition of this respected text considerably expands the original and reflects the tremendous advances made in the discipline since 1968 as discussed by the authors, with a special emphasis on applications to diffraction, imaging, optical data processing, and holography.
Book
Introduction to Fourier optics
TL;DR: The second edition of this respected text considerably expands the original and reflects the tremendous advances made in the discipline since 1968 as discussed by the authors, with a special emphasis on applications to diffraction, imaging, optical data processing, and holography.
Book
Optimization by Vector Space Methods
TL;DR: This book shows engineers how to use optimization theory to solve complex problems with a minimum of mathematics and unifies the large field of optimization with a few geometric principles.
Book ChapterDOI
3D Acoustic Camera for Underwater Imaging
TL;DR: In this article, a real-time imaging device covering the work area in case of turbid water is provided for underwater exploration and production of hydrocarbons using a remotely operated vehicle (ROV).
Book ChapterDOI
Acoustical Imaging Using Spectral Decomposition of the Aperture Field
TL;DR: In this article, a spectral decomposition of the aperture field was developed in order to make a practical underwater imaging system feasible and to keep the number of detectors at a minimum and use an image generating algorithm that allows the use of aperiodic detector apertures and the possibility of generation of a large number of image pixels.