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:
May. 08, 2007
Filed:
Dec. 30, 2004
Martti Kalke, Tuusula, FI;
Samuli Siltanen, Helsinki, FI;
Simopekka Vänskä, Vantaa, FI;
Matti Lassas, Helsinki, FI;
Maaria Rantala, Espoo, FI;
Martti Kalke, Tuusula, FI;
Samuli Siltanen, Helsinki, FI;
Simopekka Vänskä, Vantaa, FI;
Matti Lassas, Helsinki, FI;
Maaria Rantala, Espoo, FI;
GE Healthcare Finland Oy, Helsinki, FI;
Abstract
A medical X-ray device arrangement for producing three-dimensional information of an object in a medical X-ray imaging, the medical X-ray device arrangement comprising an X-ray source for X-radiating the object from at least two different directions and a detector for detecting the X-radiation to form projection data of the object. The medical X-ray device arrangement comprises means for modelling X-ray attenuation coefficient of said object using a multiresolution representation, eliminating part of the coefficients in said multiresolution representation to form reduced multiresolution representation, and utilizing said projection data in a regularized reconstruction method based on minimizing the penalty()=∥∥2/2+α∥()over the coefficients in the said reduced multiresolution representation to produce three-dimensional information of the object.