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. 20, 2014
Filed:
Jul. 27, 2009
Multilevel thresholding for mutual information based registration and image registration using a gpu
Alban Lefebvre, Ricarville du Val, FR;
Guillaume Bousquet, Princeton, NJ (US);
Christophe Chefd'hotel, Jersey City, NJ (US);
Razik Yousfi, Drancy, FR;
Alban Lefebvre, Ricarville du Val, FR;
Guillaume Bousquet, Princeton, NJ (US);
Christophe Chefd'hotel, Jersey City, NJ (US);
Razik Yousfi, Drancy, FR;
Siemens Aktiengesellschaft, München, DE;
Abstract
An exemplary embodiment of the present invention includes a method of registering images. The method includes: for each image, determining an optimum intensity threshold set from a plurality of intensity threshold sets that maximizes a variance between classes of each set, segmenting each image using the corresponding determined optimum intensity threshold set, generating mutual information from a joint histogram of at least two of the segmented images, and registering the at least two images using the mutual information. The joint histogram may be generated using a geometry shader of a graphical processing unit.