Point target detection based on nonlinear spatial-temporal filter in infrared image sequences and its analysis

Wei Zhang; Jinnan Gong; Qingyu Hou; Chunjiang Bian

doi:10.1117/12.2000626

21 November 2012 Point target detection based on nonlinear spatial-temporal filter in infrared image sequences and its analysis

Wei Zhang, Jinnan Gong, Qingyu Hou, Chunjiang Bian

Author Affiliations +

Proceedings Volume 8558, Optoelectronic Imaging and Multimedia Technology II; 85582E (2012) https://doi.org/10.1117/12.2000626
Event: Photonics Asia, 2012, Beijing, China

Abstract

A spatial-temporal detection target method is proposed to detect weak point target with slow velocity in infrared sequences evolving cloud clutter. Frist of all, a temporal filter for detecting point target called triple temporal filter (TTF) is introduced. Since theoretical analysis shows that TTF has a poor performance under temporal noise, a nonlinear spatial-temporal filter by neighbor pixels in prior and posterior frames ,which takes every possible target trace account to suppress noise before coming into recursion. Then TTF output by positive and inverse sequence order form nonlinear spatial-temporal filter fuse with liner principle for detecting weak target is put forward, which called bilateral TTF in this paper. Finally its performance is analysis. The results of experiment shows that compared to original TTF, the proposed method achieves a higher signal-to-clutter ratio gain, which is effectively detecting dim target when target signal-to clutter down to 3 or lower with a low moving velocity.

Citation Download Citation

Wei Zhang, Jinnan Gong, Qingyu Hou, and Chunjiang Bian "Point target detection based on nonlinear spatial-temporal filter in infrared image sequences and its analysis", Proc. SPIE 8558, Optoelectronic Imaging and Multimedia Technology II, 85582E (21 November 2012); https://doi.org/10.1117/12.2000626

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