Processing of CT sinograms acquired using a VRX detector

Lawrence M. Jordan; Frank A. DiBianca; Ping Zou; Joseph S. Laughter; Herbert D. Zeman

doi:10.1117/12.384534

25 April 2000 Processing of CT sinograms acquired using a VRX detector

Lawrence M. Jordan, Frank A. DiBianca, Ping Zou, Joseph S. Laughter, Herbert D. Zeman

Proceedings Volume 3977, Medical Imaging 2000: Physics of Medical Imaging; (2000) https://doi.org/10.1117/12.384534
Event: Medical Imaging 2000, 2000, San Diego, CA, United States

Abstract

A 'variable resolution x-ray detector' (VRX) capable of resolving beyond 100 cycles/main a single dimension has been proposed by DiBianca, et al. The use of detectors of this design for computed-tomography (CT) imaging requires novel preprocessing of data to correct for the detector's non- uniform imaging characteristics over its range of view. This paper describes algorithms developed specifically to adjust VRX data for varying magnification, source-to-detector range and beam obliquity and to sharpen reconstructions by deconvolving the ray impulse function. The preprocessing also incorporates nonlinear interpolation of VRX raw data into canonical CT sinogram formats.

Citation Download Citation

Lawrence M. Jordan, Frank A. DiBianca, Ping Zou, Joseph S. Laughter, and Herbert D. Zeman "Processing of CT sinograms acquired using a VRX detector", Proc. SPIE 3977, Medical Imaging 2000: Physics of Medical Imaging, (25 April 2000); https://doi.org/10.1117/12.384534

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available