Compressive sampling in active and passive millimeter-wave imaging

Author

Gopalsami, N. ; Liao, S. ; Elmer, T. ; Heifetz, A. ; Raptis, A.C.

Author_Institution

Argonne Nat. Lab., Argonne, IL, USA

fYear

2011

fDate

2-7 Oct. 2011

Firstpage

1

Lastpage

2

Abstract

We have developed a compressive sampling method based on Hadamard transform for active and passive millimeter wave (mmW) imaging. Hadamard masks of subwavelength sized pixels were used for collecting spatial mmW modulated data with a single-pixel detector system. The image reconstruction from subsampled data was based on a real time, iterative interpolation relaxation technique in the Hadamard space. Compressive sampled active and passive imaging results show that high-fidelity images of objects may be obtained with as small as 1/9 of the data needed for a full set of acquisitions.

Keywords

Hadamard transforms; image reconstruction; interpolation; iterative methods; millimetre wave detectors; millimetre wave imaging; sampling methods; Hadamard masks; Hadamard space; Hadamard transform; active millimeter-wave imaging; compressive sampling method; high-fidelity images; image reconstruction; iterative interpolation relaxation technique; passive millimeter-wave imaging; single-pixel detector system; spatial MMW modulated data; subwavelength sized pixels; Apertures; Extraterrestrial measurements; Image coding; Image reconstruction; Imaging; Metals; Transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on

Conference_Location

Houston, TX

ISSN

2162-2027

Print_ISBN

978-1-4577-0510-6

Electronic_ISBN

2162-2027

Type

conf

DOI

10.1109/irmmw-THz.2011.6105205

Filename

6105205