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An AUV-deployable pulsed laser line scan (PLLS) imaging sensor

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Date Issued:
2007-10-02 - 2007-10-05
Title: An AUV-deployable pulsed laser line scan (PLLS) imaging sensor.
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Name(s): Dalgleish, Fraser R., creator
Caimi, F. M., creator
Britton, W. B., creator
Andren, C. F., creator
Harbor Branch Oceanographic Institute
Type of Resource: text
Genre: Article
Issuance: single unit
Date Issued: 2007-10-02 - 2007-10-05
Publisher: IEEE
Extent: 6 p.
Physical Description: pdf
Language(s): English
Identifier: 1927696 (digitool), FADT1927696 (IID), fau:5478 (fedora), 10.1109/oceans.2007.4449184 (doi)
Note(s): Laser Line Scan (LLS) underwater imaging is a serial imaging technique that involves the optical scanning of a narrow instantaneous field of view (IFOV) receiver in a synchronous fashion with a highly collimated laser source over a wide swath. It is widely regarded as the optimal technology for extended range underwater optical imaging, with up to 6 attenuation lengths achievable in turbid seawater. These imagers, which utilize high power green CW lasers, require an adequate sourcereceiver separation to reduce near field backscattering image degradation. They have been successfully deployed onboard towed bodies, and have potential as AUV-deployed imagers except their large size and high sensitivity to changes in operating conditions and environment makes them difficult to use successfully with these platforms. Harnessing recent developments in high power, high repetition rate green pulsed lasers, high speed gate-able photomultiplier tubes, rapid parallel digital signal processors and compact underwater scanning systems, this paper describes the latest approach to demonstrating a prototype pulsed laser line scan (PLLS) imager which has the required compactness and ease of operability to make it more compatible for implementation onboard the common classes of AUV.
IEEE publications are available online at http://www.ieee.org/ this article should be cited as Dalgleish, F.R., Caimi, F.M., Britton, W.B. and Andren, C.F (2007) An AUVdeployable pulsed laser line scan (PLLS) imaging sensor, Marine Technology Society, Proc. MTS/IEEE Oceans 2007, October 2‐5 2007, Vancouver, Canada.
Florida Atlantic University. Harbor Branch Oceanographic Institute contribution #1741.
Subject(s): Underwater imaging systems
Lasers
Persistent Link to This Record: http://purl.flvc.org/FCLA/DT/1927696
Links: https://doi.org/10.1109/oceans.2007.4449184 
Restrictions on Access: ©2007 Marine Technology Society, IEEE
Host Institution: FAU