An image enhancement method for dim target in through-the-wall radar imaging

Author

Liang, Qireng ; Kong, Lingjiang ; Jia, Yong

Author_Institution

Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2010

fDate

28-30 July 2010

Firstpage

343

Lastpage

346

Abstract

This paper mainly deals with the degradation problem of dim target through multi-channel image fusion in image domain, and a method based on depth-first-searching (DFS) algorithm is proposed. To apply this method, firstly, the target image is formed by back-projection (BP) imaging. Secondly, DFS is used to find the target region automatically. Thirdly, the image of dim target is enhanced according to power proportion, after which a multi-channel image fusion can be applied. Finally, the real data is collected by the stepped-frequency through-the-wall radar, and the processed results demonstrate the method is feasible for dim target imaging.

Keywords

image enhancement; radar imaging; search problems; back-projection imaging; depth-first-searching algorithm; dim target imaging; image domain; image enhancement method; multichannel image fusion; power proportion; stepped-frequency through-the-wall radar; target image; target region; through-the-wall radar imaging; Imaging; Variable speed drives;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems (ICCCAS), 2010 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-8224-5

Type

conf

DOI

10.1109/ICCCAS.2010.5581978

Filename

5581978