Development of scanning laser sensor for underwater 3D imaging with the coaxial optics

Hideaki Ochimizu; Masaharu Imaki; Shumpei Kameyama; Takashi Saito; Shoujirou Ishibashi; Hiroshi Yoshida

doi:10.1117/12.2050110

9 June 2014 Development of scanning laser sensor for underwater 3D imaging with the coaxial optics

Hideaki Ochimizu, Masaharu Imaki, Shumpei Kameyama, Takashi Saito, Shoujirou Ishibashi, Hiroshi Yoshida

Author Affiliations +

Proceedings Volume 9080, Laser Radar Technology and Applications XIX; and Atmospheric Propagation XI; 90800A (2014) https://doi.org/10.1117/12.2050110
Event: SPIE Defense + Security, 2014, Baltimore, MD, United States

Abstract

We have developed the scanning laser sensor for underwater 3-D imaging which has the wide scanning angle of 120º (Horizontal) x 30º (Vertical) with the compact size of 25 cm diameter and 60 cm long. Our system has a dome lens and a coaxial optics to realize both the wide scanning angle and the compactness. The system also has the feature in the sensitivity time control (STC) circuit, in which the receiving gain is increased according to the time of flight. The STC circuit contributes to detect a small signal by suppressing the unwanted signals backscattered by marine snows. We demonstrated the system performance in the pool, and confirmed the 3-D imaging with the distance of 20 m. Furthermore, the system was mounted on the autonomous underwater vehicle (AUV), and demonstrated the seafloor mapping at the depth of 100 m in the ocean.

Citation Download Citation

Hideaki Ochimizu, Masaharu Imaki, Shumpei Kameyama, Takashi Saito, Shoujirou Ishibashi, and Hiroshi Yoshida "Development of scanning laser sensor for underwater 3D imaging with the coaxial optics", Proc. SPIE 9080, Laser Radar Technology and Applications XIX; and Atmospheric Propagation XI, 90800A (9 June 2014); https://doi.org/10.1117/12.2050110

ACCESS THE FULL ARTICLE

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