CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 10659 > Article
Presentation
14 May 2018 Time-correlated single-photon counting for single and multiple wavelength underwater depth imaging (Conference Presentation)
Aurora Maccarone, Aongus McCarthy, Abderrahim Halimi, Julian Tachella, Puneet S. Chhabra, Yoann Altmann, Andrew M. Wallace, Stephen MaLaughlin, Yvan R. Petillot, Gerald S. Buller
Author Affiliations +
Proceedings Volume 10659, Advanced Photon Counting Techniques XII; 106590R (2018) https://doi.org/10.1117/12.2304937
Event: SPIE Commercial + Scientific Sensing and Imaging, 2018, Orlando, FL, United States
Abstract
A scanning depth imaging system is used for the investigation of three-dimensional image reconstruction and classification of targets in underwater environments. The system uses the Time-Correlated Single-Photon Counting (TCSPC) technique to measure single-photon time-of-flight. In this paper, we use both single and multiple wavelengths to interrogate underwater targets. This presentation will show laboratory measurements on several target scenarios, including targets in clutter. We demonstrate high resolution depth and intensity image reconstruction in highly scattering underwater scenarios, and show image reconstruction at up to nine attenuation lengths between transceiver and target. The system comprised a scanning transceiver unit, fiber coupled to a silicon single-photon avalanche diode (Si SPAD) and a supercontinuum laser system operating at the repetition rate of 19.5 MHz. An acousto-optic tunable filter (AOTF) is used to select an individual operational wavelength in the range 500 nm to 725 nm. The measurements used a range of system configurations, including both single wavelength and multiple wavelength measurements. Generally, the measurements used sub-milliwatt average optical power levels. Bespoke algorithms were developed to identify man-made objects hidden by marine vegetation in the scanned scene. Advanced statistical image processing methods were used to improve target discrimination and to reconstruct the target under different conditions, including reduced number of wavelengths and number of pixels, and reduced acquisition time. Particular attention will be given to the photon starved regime, which will be typical of data acquired at long distances in open ocean waters or in highly scattering environments.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Aurora Maccarone, Aongus McCarthy, Abderrahim Halimi, Julian Tachella, Puneet S. Chhabra, Yoann Altmann, Andrew M. Wallace, Stephen MaLaughlin, Yvan R. Petillot, and Gerald S. Buller "Time-correlated single-photon counting for single and multiple wavelength underwater depth imaging (Conference Presentation)", Proc. SPIE 10659, Advanced Photon Counting Techniques XII, 106590R (14 May 2018); https://doi.org/10.1117/12.2304937
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Underwater imaging
Image restoration
Algorithm development
Fiber coupled lasers
Ocean optics
Scattering
Semiconductor lasers
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top