A fast target detection and imaging method for compressive sensing Earth observation

Chuanrong Li; Qi Wang; Changyong Cao; Xi Shao; Lingling Ma; Yongsheng Zhou; Shi Qiu; Jianjian Li

doi:10.1117/12.2050253

23 May 2014 A fast target detection and imaging method for compressive sensing Earth observation

Chuanrong Li, Qi Wang, Changyong Cao, Xi Shao, Lingling Ma, Yongsheng Zhou, Shi Qiu, Jianjian Li

Proceedings Volume 9109, Compressive Sensing III; 91090T (2014) https://doi.org/10.1117/12.2050253
Event: SPIE Sensing Technology + Applications, 2014, Baltimore, MD, United States

Abstract

The compressive sensing imaging technique, based on the realization of random measurement via active or passive devices (e.g., DMD), has attracted more and more attention. For imaging target of interest within large uniform scene (e.g., ships in the sea), high-resolution image was usually reconstructed and then used to detect targets, however the process is time-consuming, and moreover only part of the image consists of the targets of interest. In this paper, the stepwise multi-resolution fast target detection and imaging method through the combination of different numbers of DMD mirrors was explored. Low resolution image for larger area target searching and successively higher resolution image for smaller area containing the targets were reconstructed. Also, non-imaging fast target detection was realized based on the detector energy intensity, which includes the steps of rough target positioning by successively opening DMD blocks and accurate target positioning by adjusting the rough areas via intelligent search algorithm. Simulation experiments were carried out to compare the proposed method with traditional method. The result shows the area of the ships are accurately positioned without reconstructing the image by the proposed method and the multi-level scale imaging for suspect areas is realized. Compared with traditional target detection method from the reconstructed image, the proposed method not only highly enhances the measuring and reconstruction efficiency but also improves the positioning accuracy, which would be more significant for large area scene.

Citation Download Citation

Chuanrong Li, Qi Wang, Changyong Cao, Xi Shao, Lingling Ma, Yongsheng Zhou, Shi Qiu, and Jianjian Li "A fast target detection and imaging method for compressive sensing Earth observation", Proc. SPIE 9109, Compressive Sensing III, 91090T (23 May 2014); https://doi.org/10.1117/12.2050253

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Digital micromirror devices

Image resolution

Target detection

Mirrors

Compressed sensing

Detection and tracking algorithms

Sensors

Show All Keywords

Keywords/Phrases

Search In:

Publication Years