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:
Jun. 05, 2012
Filed:
Sep. 26, 2008
Edward Seppi, Portola Valley, CA (US);
Edward Shapiro, Menlo Park, CA (US);
Gary Virshup, Cupertino, CA (US);
Josh Star-lack, Palo Alto, CA (US);
Edward Seppi, Portola Valley, CA (US);
Edward Shapiro, Menlo Park, CA (US);
Gary Virshup, Cupertino, CA (US);
Josh Star-Lack, Palo Alto, CA (US);
Varian Medical Systems, Inc., Palo Alto, CA (US);
Abstract
Disclosed are systems, methods, and computer program products that generate estimates of errors caused by extraneous radiation in tomographic systems, such as cone-beam computerized tomography (CBCT) systems, fluoroscopic tomography systems, radiographic tomography systems, laminar tomography imaging systems, and the like. In one group of inventions, spatial errors are estimated from projection data collected where a known spatial perturbation has been introduced into radiation intensity of the source. In another group of inventions, temporal errors are estimated from a sequence of projections where a known perturbation in the radiation intensity of the source for different projections has been introduced.