Spatial resolution of coded-aperture imaging systems in multiplexed tomography with linear and quadratic super-resolving filters

Author

Mondal, P.K. ; Chakravarti, Bhudeb ; Sagar, B. Gnana ; Rao, T. Prabhakar

Author_Institution

Dept. of Phys., Osmania Univ., Hyderabad, India

fYear

1995

fDate

15-18 Feb 1995

Firstpage

24869

Lastpage

25235

Abstract

The intensity point spread function (PSF) of a single annulus coded-aperture imaging system used in multiplexed tomography has been evaluated. The effects of the width of the annulus as well as its location on the trans-axial resolution have been investigated on the basis of the full-width at the half-maximum (FWHM) point

Keywords

computerised tomography; emission tomography; image resolution; X-ray tomography; coded-aperture imaging systems; full-width at half-maximum point; gamma-ray tomography; image spatial resolution; intensity point spread function; linear super-resolving filters; medical diagnostic imaging; multiplexed tomography; quadratic super-resolving filters; single annulus coded-aperture imaging system; trans-axial resolution; Apertures; Biomedical optical imaging; Energy resolution; Focusing; Image resolution; Nonlinear filters; Optical filters; Optical imaging; Spatial resolution; Tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1995 and 14th Conference of the Biomedical Engineering Society of India. An International Meeting, Proceedings of the First Regional Conference., IEEE

Conference_Location

New Delhi

Print_ISBN

0-7803-2711-X

Type

conf

DOI

10.1109/RCEMBS.1995.532161

Filename

532161