Patents by Inventor Simopekka Vänskä

Simopekka Vänskä has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and arrangement for multiresolutive reconstruction for medical X-ray imaging
    Patent number: 7215730
    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 F(f)=?Af?m?2/2+??f?B+?g(f) over the coefficients in the said reduced multiresolution representation to produce three-dimensional information of the object.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: May 8, 2007
    Assignee: GE Healthcare Finland Oy
    Inventors: Martti Kalke, Samuli Siltanen, Simopekka Vänskä, Matti Lassas, Maaria Rantala