Point target detection

Roni Succary; H. Kalmanovitch; Y. Shurnik; Yafit Cohen; Ezra Cohen-Yashar; Stanley R. Rotman

doi:10.1117/12.453556

23 January 2003 Point target detection

Roni Succary, H. Kalmanovitch, Y. Shurnik, Yafit Cohen, Ezra Cohen-Yashar, Stanley R. Rotman

Proceedings Volume 4820, Infrared Technology and Applications XXVIII; (2003) https://doi.org/10.1117/12.453556
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

To detect dim point targets in IR backgrounds, it is often necessary to examine targets in more than one image. A dynamic programming algorithm is a useful technique for a Track Before Detect (TBD) architecture implementation, designed to track and detect dim maneuvering targets from an image sequence under low SNR conditions. We will present a TBD architecture which combines a subpixel velocity module for detecting targest moving at subpixel velocities from frame to frame and a DPA module which integrates the signal for maneuvering targets, varying from straight line flight. The DPA does a search over all the possible state sequences, marking possible tracks by scanning each pixel in each frame and determining where it was likely to originate from in the previous image, assuming it is the true target. Each transition receives a score based on its probability of being a target track. The scores are functions of the pixels intensity, transition velocity and direction and are given while considering their surroundings and a-prior restrictions such as the allowed maneuvering. Finally, we represent a CFAR module, which allows us to determine if a target is present, and if so, where the target is present, and if so, where the target is. Data to be tested will include both real data and data which has been preregistered to minimize vibrations. The effect of vibrations will be discussed.

Citation Download Citation

Roni Succary, H. Kalmanovitch, Y. Shurnik, Yafit Cohen, Ezra Cohen-Yashar, and Stanley R. Rotman "Point target detection", Proc. SPIE 4820, Infrared Technology and Applications XXVIII, (23 January 2003); https://doi.org/10.1117/12.453556

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