Range-gated underwater laser imaging system based on intensified gate imaging technology

Weiqi Jin*, Fengmei Cao, Xia Wang, Guangrong Liu, Youwei Huang, Huaichuan Qi, Fei Shen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

19 Citations (Scopus)

Abstract

The range-gated laser imaging technology can eliminate the backscattering noise and has a range of from 4 to 6 times that of a conventional camera with floodlights in the strongly scattering waters, which becomes a useful technique in oceanic research, deep-sea exploration, underwater remote control and robotic works. The characteristics of range-gated underwater laser imaging were analyzed in this paper, and the basic requirements for gated ICCD were presented. As a result, Gated Gen II+ Image Intensifier and progressive scanning CCD were assembled together to meet the requirements, which was called the Gate Intensified CCD camera. Combined with the small-sized programmable high voltage power supply, video image acquisition/control system and high power lamp-Pumped blue-green Nd:YAG pulse laser, the experimental system was developed. Experiments were carried out in pipes full of saturated salt water and large pools. When tested by USAF 1951 resolution target, the detecting range can extend to about 30 meters.

Original languageEnglish
Title of host publicationInternational Symposium on Photoelectronic Detection and Imaging 2007
Subtitle of host publicationPhotoelectronic Imaging and Detection
DOIs
Publication statusPublished - 2008
EventInternational Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Photoelectronic Imaging and Detection - Beijing, China
Duration: 9 Sept 200712 Sept 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6621
ISSN (Print)0277-786X

Conference

ConferenceInternational Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Photoelectronic Imaging and Detection
Country/TerritoryChina
CityBeijing
Period9/09/0712/09/07

Keywords

  • Gate
  • ICCD
  • Range-gated
  • Underwater imaging

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