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:
Mar. 06, 2012
Filed:
Aug. 11, 2008
Kinda Anna Saddi, Oxford, GB;
Mikael Rousson, Malmo, SE;
Kinda Anna Saddi, Oxford, GB;
Mikael Rousson, Malmo, SE;
Siemens Aktiengesellschaft, München, DE;
Abstract
A method for automatically segmenting a liver in digital medical images includes providing a 3-dimensional (3D) digital image I and a set of N training shapes {φ}for a liver trained from a set of manually segmented images, selecting a seed point to initialize the segmentation, representing a level set function φ(θx+h) of a liver boundary Γ in the image as is a mean shape, {V(x)}are eigenmodes where n<N, αare shape parameters, and h ε Rand θ ε [0,2π]are translation and rotation parameters that align the training shapes, minimizing a first energy functional to determine the shape, translation, and rotation parameters to determine a shape template for the liver segmentation, defining a second energy functional of the shape template and a registration mapping weighted by image intensity histogram functions inside and outside the boundary, and minimizing the second energy functional to determine the registration mapping, where the registration mapping recovers local deformations of the liver.