Multiresolution Target Detection in Wavelet Domain for SAR Imagery

Author

Yuan, Xiao-Hong ; Zhu, Zhao-Da ; Zhang, Gong

Author_Institution

Coll. of Aerosp. Eng., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

Volume

1

fYear

2009

Firstpage

609

Lastpage

613

Abstract

Multiresolution CFAR detection algorithm in wavelet domain using db4 wavelet is investigated in this paper, which can be incorporated into SAR image compression system. It is derived on a multiscale model of SAR imagery. Thanks to the structure of this model and detection in wavelet domain, calculation is much simpler than that of two parameter CFAR detection algorithm in image domain. Tests on simulated and collected image show that the proposed algorithm performs best. The algorithm is more suitable for the application in ROI-based image compression than two parameter CFAR detection algorithm in image domain.

Keywords

data compression; image coding; image resolution; radar imaging; radar target recognition; synthetic aperture radar; wavelet transforms; CFAR detection; SAR image compression; multiresolution target detection; synthetic aperture radar; wavelet domain; Algorithm design and analysis; Detection algorithms; Discrete wavelet transforms; Image analysis; Image coding; Image resolution; Object detection; Pixel; Wavelet coefficients; Wavelet domain; multiresolution; synthetic aperture radar; target detection; wavelet;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Assurance and Security, 2009. IAS '09. Fifth International Conference on

Conference_Location

Xian

Print_ISBN

978-0-7695-3744-3

Type

conf

DOI

10.1109/IAS.2009.178

Filename

5282993