The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 24, 2013
Filed:
May. 31, 2011
Byong Yong Yi, Ellicott City, MD (US);
Xinsheng Cedric Yu, Clarksville, MD (US);
Jin Zhang, Catonsville, MD (US);
Giovanni Lasio, Towson, MD (US);
Byong Yong Yi, Ellicott City, MD (US);
Xinsheng Cedric Yu, Clarksville, MD (US);
Jin Zhang, Catonsville, MD (US);
Giovanni Lasio, Towson, MD (US);
The University of Maryland, Baltimore, Baltimore, MD (US);
Abstract
Techniques for background subtraction in computed tomography include determining voxels in a slice of interest in a three dimensional computed tomography scan of the interior of a body based on a first set of measurements of radiation transmitted through the body. Based on the first set of measurements, a first background image for radiation transmitted through the body in a first direction is determined without the effects of the voxels in the slice of interest. A current image is determined based on a different current measurement of radiation transmitted through the body in the first direction. A first difference is determined between the current image and the first background image. The result is a high contrast image in the slice of interest even from a single current projection image.