Image registration method and apparatus for medical imaging based on multiple masks
US7912259B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2005 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Jul 17, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30048
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image registration method for use in medical imaging includes the steps of: providing a sequence of images each one including a digital representation of a body-part under analysis, selecting a reference image within the sequence, the remaining images of the sequence defining moving images, and re-aligning at least one portion of a moving image with respect to the reference image. The step of re-aligning may include: defining a delimitation mask identifying a region on the reference image with which the at least one portion of the moving image has to be re-aligned, and a feature mask identifying a further region on the reference image within which the re-alignment is calculated, determining an optimized transformation for compensating a displacement of the moving image with respect to the reference image by optimizing a similarity measure, and transforming the at least one portion of the moving image according to the optimized transformation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.