An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Practical Intrinsic-Error Bounds for X-Ray Computed Tomography
Published
Author(s)
R D. Spal
Abstract
Images produced by x-ray computed tomography contain intrinsic error due to the limited spatial resolution of the technique. Two bounds on the mean intrinsic error over a specified region are determined, given only minimal information about the object, namely its phase composition. One bound is an upper bound applicable to a class of image reconstruction algorithms; the other is a lower bound on worst-case error applicable to any algorithm. A commonly used data collection mode is found to be subject to large intrinsic error, and a much better substitute isidentified.
Citation
Science
Pub Type
Journals
Keywords
image artifact, image reconstruction, intrinsic error bound, linear inverse problem, linear program, quantitative image analysis, spatial resolution, x-ray computed tomography