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:
Nov. 09, 2010
Filed:
Mar. 05, 2007
Yunqiang Chen, Plainsboro, NJ (US);
Lin Cheng, Pittsburgh, PA (US);
Tong Fang, Morganville, NJ (US);
Jason Jenn-kwei Tyan, Princeton, NJ (US);
Yunqiang Chen, Plainsboro, NJ (US);
Lin Cheng, Pittsburgh, PA (US);
Tong Fang, Morganville, NJ (US);
Jason Jenn-Kwei Tyan, Princeton, NJ (US);
Siemens Medical Solutions USA, Inc., Malvern, PA (US);
Abstract
A system and method for image reconstruction is disclosed. The method divides iterative image reconstruction into two stages, in the image and Radon space, respectively. In the first stage, filtered back projection and adaptive filtering in the image space are combined to generate a refined reconstructed image of a sinogram residue. This reconstructed image represents an update direction in the image space. In the second stage, the update direction is transformed to the Radon space, and a step size is determined to minimize a difference between the sinogram residue and a Radon transform of the refined reconstructed image of the sinogram residue in the Radon space. These stages are repeated iteratively until the solution converges.