Underwater optical and acoustic imaging: A time for fusion? a brief overview of the state-of-the-art (original) (raw)

Advanced Underwater Imaging Phase III Annual Report FY07

The overall objective of the Advanced Underwater Imaging (AUI) program is to advance the state of the art in wide-swath underwater laser imaging with the long-term goal of transitioning this technology to the Navy's fleet of 21" diameter and smaller form factor autonomous underwater vehicles (AUVs).

Report on the Marine Imaging Workshop 2017

Research Ideas and Outcomes

Marine optical imaging has become a major assessment tool in science, policy and public understanding of our seas and oceans. Methodology in this field is developing rapidly, including hardware, software and the ways of their application. The aim of the Marine Imaging Workshop (MIW) is to bring together academics, research scientists and engineers, as well as industrial partners to discuss these developments, along with

Advanced Underwater Imaging

2009

The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188),

Advanced Underwater Imaging Phase IV Annual Report FY08

The overall objective of the Advanced Underwater Imaging (AUI) program is to advance the state-of-the- art in wide-swath underwater laser imaging with the long-term goal of transitioning this technology to the Navy's fleet of 21" diameter and smaller form factor autonomous underwater vehicles (AUVs). Following the development and refinement of benchtop pulsed laser line scan (PLLS) imaging hardware and image simulation tools in FY07, the objectives of the work performed during this funding period were to: 1. Perform experimental validation of time history code for underwater PLLS model 2. Experimental comparison of CW/pulsed/ modulated-pulse variants of LLS 3. Analytic comparison between CW/pulsed/modulated-pulse variants of LLS 4. Application of image quality algorithms to acquired images 5. Complete experimental hardware to allow for wide-swath LLS imaging.

Real-time Mosaicing of Large Scale Areas with Forward Looking Sonar★

IFAC-PapersOnLine, 2015

CMRE conducts state-of-the-art scientific research and experimentation ranging from concept development to prototype demonstration in an operational environment and has produced leaders in ocean science, modelling and simulation, acoustics and other disciplines, as well as producing critical results and understanding that have been built into the operational concepts of NATO and the nations. CMRE conducts hands-on scientific and engineering research for the direct benefit of its NATO Customers. It operates two research vessels that enable science and technology solutions to be explored and exploited at sea. The largest of these vessels, the NRV Alliance, is a global class vessel that is acoustically extremely quiet. CMRE is a leading example of enabling nations to work more effectively and efficiently together by prioritizing national needs, focusing on research and technology challenges, both in and out of the maritime environment, through the collective Power of its world-class scientists, engineers, and specialized laboratories in collaboration with the many partners in and out of the scientific domain.

HBOI Underwater Imaging and Communications Research - Phase I

The long term goal of this program is to advance understanding of distributed laser line scan (DLLS) imaging and networking techniques and their applicability to Navy missions which utilize multiple UUVs in support of littoral operations. The planned three year outcome of the work is to provide a validated radiative transfer simulation suite which can allow underwater laser imaging and communications system developers or operators to predict imaging or communication system performance for alternate configurations of bistatic or multistatic UUV based LLS networks under known environmental conditions. OBJECTIVES The effort during this performance period has been focused on several objectives: 1) Test tank experimentation with bistatic and multistatic LLS imaging concepts The objective was to experimentally investigate the unique performance attributes and channel characteristics of the bistatic and multistatic LLS imaging techniques in specific geometries, examining degradation due to attenuation, volumetric scatter and forward scatter (blur or glow noise) in known scattering suspensions and devising robust image formation and multi-perspective rendering techniques. 2) Development and validation of one-way pulse stretching radiative transfer code The objective was to develop and validate time-resolved radiative transfer models that can rapidly and accurately simulate one-way propagation for pulsed laser sources (either narrow collimated or highly divergent beams) in turbid ocean environments under varying degrees of angular pointing misalignment (i.e. off-axis geometries). 3) Forward scattering Mueller Matrix study The objective was to develop a detailed understanding of changes in the Mueller Matrix elements in the near-forward (0°-20°) direction with fine angular resolution in various natural and manipulated particle suspensions, from clearer water up to the optical conditions where multiple scattering dominates. This is critical to establish the potential benefit of using polarization-sensitive Report Documentation Page Form Approved OMB No. 0704-0188 Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number.

Signals and Images in Sea Technologies

Journal of Marine Science and Engineering, 2021

Life below water is the 14th Sustainable Development Goal (SDG) envisaged by the United Nations and is aimed at conserving and sustainably using the oceans, seas and marine resources for sustainable development [...]