Method and system for elastic composition of medical imaging volumes
AssigneeSiemens Corporate Research, Inc.
InventorsJames G. Reisman, Christophe Chefd'hotel
Life of this patent
Estimating the term…
Abstract
A method and system for improving the quality of composing image volumes using deformable registration, and a gradual elastic morphing to create a seamless whole body volume image from several component volumes from a 3D medical imager.
Claims33
A method for composing image volumes obtained using a medical scanning device, comprising the steps of:
- a. using a medical scanning device to obtain data of at least two image volumes of a patient, said image volumes having an overlap region;
- b. processing the data from the two image volumes to determine the overlap region and to register the two image volumes with each other using rigid registration;
- c. determining a non-rigid deformation between the two image volumes using an elastic registration algorithm;
- d. performing an alpha-morphing on each overlapping region of each image volume using the non-rigid deformation;
- and
- e. obtaining a blend region of the overlap region by performing an alpha-blending which blends the two image volumes by varying the relative contribution of the two image volumes using the results of alpha-morphing.
An article of manufacture comprising a computer-usable medium having computer-readable program code embodied therein for composing a composite image from at least two smaller images, the computer-readable program code having instructions for performing the following steps:
- a. obtaining data of at least two image volumes of a patient, said image volumes having an overlap region;
- b. processing the data from the two image volumes to determine the overlap region and to register the two image volumes with each other using rigid registration;
- c. determining a non-rigid deformation between the two image volumes using an elastic registration algorithm;
- d. performing an alpha-morphing on each overlapping region of each image volume using the non-rigid deformation;
- and
- e. obtaining a blend region of the overlap region by performing an alpha-blending which blends the two image volumes by varying the relative contribution of the two image volumes using the results of alpha-morphing.
A system for composing an image from two smaller image volumes of data obtained using a medical scanning device, comprising:
- a scanner for obtaining image data for at least two image volumes of a patient, wherein the image volumes have an overlap region;
- a processor for:
- a. processing the data from the two image volumes to determine the overlap region and to register the two image volumes with each other using rigid registration;
- b. determining a non-rigid deformation between the two image volumes using an elastic registration algorithm;
- c. performing an alpha-morphing on each overlapping region of each image volume using the non-rigid deformation;
- and
- d. obtaining a blend region of the overlap region by performing an alpha-blending which blends the two image volumes by varying the relative contribution of the two image volumes using the results of alpha-morphing.
Dependencies are inferred from the claim text.