Gated viewing for target detection and target recognition

Ove K. Steinvall; Hakan Olsson; Goeran Bolander; Christina Anna Groenwall; Dietmar Letalick

doi:10.1117/12.351364

28 May 1999 Gated viewing for target detection and target recognition

Ove K. Steinvall, Hakan Olsson, Goeran Bolander, Christina Anna Groenwall, Dietmar Letalick

Proceedings Volume 3707, Laser Radar Technology and Applications IV; (1999) https://doi.org/10.1117/12.351364
Event: AeroSense '99, 1999, Orlando, FL, United States

Abstract

Gated viewing using short pulse lasers and fast cameras offers many new possibilities in imaging compared with passive EO imaging. Among these we note ranging capability, large target-to-background contrast also in low visibility, good penetration capability trough obscurants and vegetation as well as through shadows in buildings, cars, etc. We also note that short wavelength laser systems have better angular resolution than long-wave infrared systems of the same aperture size. This gives an interesting potential of combined IR and laser systems for target detection and classification. Beside military applications civilian applications of gated viewing for search and rescue as well as vehicle enhanced vision and other applications are in progress. This presentation investigates the performance for gated viewing systems during different atmospheric conditions, including obscurants and gives examples of experimental data. The paper also deals with signal processing of gated viewing images for target detection. This is performed in two steps. First, image frames containing information of interest are found. In a second step those frames are investigated further to evaluate if man-made objects are present. In this step a sequence of images (video frames) are set up as a 3-D volume to incorporate spatial information. The object will then be detected using a set of quadrature filters operating on the volume.

Citation Download Citation

Ove K. Steinvall, Hakan Olsson, Goeran Bolander, Christina Anna Groenwall, and Dietmar Letalick "Gated viewing for target detection and target recognition", Proc. SPIE 3707, Laser Radar Technology and Applications IV, (28 May 1999); https://doi.org/10.1117/12.351364

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

Includes PDF, HTML & Video, when available