System and method for non-rigid multi-modal registration on...

Details System and method for non-rigid multi-modal registration on... System and method for non-rigid multi-modal registration on...

2007-03-28

2010-10-12

Patel, Kanji (Department: 2624)

Image analysis

Image transformation or preprocessing

Changing the image coordinates

C382S168000, C382S260000, C345S651000

Reexamination Certificate

active

07813592

ABSTRACT:
A method for non-rigid multi-modal registration of digitized images includes providing a reference image and an alignment images acquired from different imaging modalities to a graphics processing unit (GPU), initializing a deformation field for registering said reference image and said alignment image, computing marginal and joint intensity histograms of the reference image and the alignment image as registered by said deformation field, computing gradients of the reference and registered alignment images and of their respective marginal and joint intensity histograms, smoothing said histograms and gradients using Gaussian filters, calculating a new deformation field using said smoothed gradients, and registering said alignment image to said reference image using said deformation field.

REFERENCES:
patent: 7280710 (2007-10-01), Castro-Pareja et al.
patent: 7639896 (2009-12-01), Sun et al.
patent: 7653264 (2010-01-01), Hero et al.
patent: 2006/0110071 (2006-05-01), Ong et al.

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