Methods and systems for improving spatial and temporal resolution of computed images of moving objects

US8233682B2 · kind B2 · utility

Assignees

• General Electric Company · US
• University of Notre Dame du Lac · US
• THE REGENTS OF THE UNIVERSITY OF MICHIGAN · US
• Purdue Research Foundation · US

Inventors

• Jeffrey A. Fessler · Ann Arbor, US
• Charles A. Bouman · West Lafayette, US
• Jiang Hsieh · Brookfield, US
• Jean-Baptiste Thibault · Milwaukee, US
• Ken David Sauer · South Bend, US
• Samit Kumar Basu · Niskayuna, US
• Bruno Kristiaan Bernard De Man · Clifton Park, US

Key dates

• Filing date: Jun 5, 2007
• Grant date: Jul 31, 2012
• Expiry date: Feb 15, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2211/424
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method of improving a resolution of an image using image reconstruction is provided. The method includes acquiring scan data of an object and forward projecting a current image estimate of the scan data to generate calculated projection data. The method also includes applying a data-fit term and a regularization term to the scan data and the calculated projection data and modifying at least one of the data fit term and the regularization term to accommodate spatio-temporal information to form a reconstructed image from the scan data and the calculated projection data.