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:
Oct. 27, 2009
Filed:
Dec. 20, 2005
Detlev Stalling, Berlin, DE;
Malte Westerhoff, Berlin, DE;
Detlev Stalling, Berlin, DE;
Malte Westerhoff, Berlin, DE;
PME IP Australia Pty Ltd, Victoria, AU;
Abstract
The invention provides, in some aspects, methods and apparatus for registering 3D image volumes by utilizing a graphics processing unit (GPU) to facilitate maximizing the 'mutual information' of the two image volumes being registered. Particularly, the GPU is used to compute a histogram representing a probability that a pixel value in one of the images being registered coincides with a pixel value in a transform of the other image. In one aspect, this histogram is generated by a two-step approach including (i) 'drawing' a polygon covering a two-component render target having as many pixels as there are samples, where the value of each pixel in the target includes the intensities of the respective pixels of the first and second images, (ii) interpreting that render target as a buffer of vertex positions and, for each sample, rendering into a new render target, a single vertex using coordinates from that buffer.