Multiresolution imaging with quadtree backprojection

Author

Oh, Seung-Mok ; McClellan, James H.

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

1

fYear

2001

fDate

4-7 Nov. 2001

Firstpage

105

Abstract

The quadtree backprojection is an efficient space-time synthetic aperture radar (SAR) imaging algorithm that is based on the spectral decomposition of SAR data. Normally the quadtree backprojection is represented as a multiple stage imaging process that performs the space-time domain imaging over a number of sub-patches separately at each stage. By representing the contents of each sub-patch with a predefined energy function, it is possible to form a sequence of multi-resolution images. In this paper, we discuss various applications where this quadtree imaging can be applied to provide the multiresolution imaging. These include SAR, tomographic medical imaging and beamforming.

Keywords

array signal processing; biomedical imaging; image resolution; quadtrees; radar imaging; radar resolution; synthetic aperture radar; SAR data; beamforming; multi-resolution image sequence; multiple stage sub-patch imaging process; multiresolution imaging; predefined energy function; quadtree backprojection space-time imaging algorithm; space-time domain imaging; spectral decomposition; synthetic aperture radar; tomographic medical imaging; Data acquisition; Energy resolution; Filtering; Government; Image resolution; Matched filters; Radar scattering; Reflectivity; Spatial resolution; Synthetic aperture radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2001. Conference Record of the Thirty-Fifth Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-7803-7147-X

Type

conf

DOI

10.1109/ACSSC.2001.986888

Filename

986888