Share Email Print
cover

Proceedings Paper

Edge-masked CT image reconstruction from limited data
Author(s): Victor Churchill; Anne Gelb
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

This paper presents a preliminary investigation of an iterative inversion algorithm for computed tomography image reconstruction that early results show performs well in terms of accuracy and speed using limited data. The computational method combines an image domain technique and statistical reconstruction by using an initial filtered back projection reconstruction to create a binary edge mask, which is then used in a weighted ℓ2-regularized reconstruction. Both theoretical and empirical results are offered to support the algorithm. While in this paper a simple forward model is used and physical edges are used as the sparse feature, the proposed method is flexible and can accommodate any forward model and sparsifying transform.

Paper Details

Date Published: 28 May 2019
PDF: 5 pages
Proc. SPIE 11072, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 110721V (28 May 2019);
Show Author Affiliations
Victor Churchill, Dartmouth College (United States)
Anne Gelb, Dartmouth College (United States)


Published in SPIE Proceedings Vol. 11072:
15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine
Samuel Matej; Scott D. Metzler, Editor(s)

© SPIE. Terms of Use
Back to Top
PREMIUM CONTENT
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?
close_icon_gray