Image registration using locally-weighted fitting
US7855723B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2006 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | Dec 20, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0073
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A computer-implemented method for image registration includes accepting a three-dimensional (3-D) image of an organ. The image includes a first plurality of image points with respective image coordinates. A map defining a distribution of values of a physiological parameter over the organ is accepted. The map includes a second plurality of map points with respective map coordinates. Confidence levels are associated with one or more of the map coordinates and image coordinates. Weights are assigned to at least some of the map points and image points responsively to the confidence levels of the respective map coordinates and image coordinates. The 3-D image is fitted with the map by calculating a geometrical transformation between the map coordinates and the image coordinates based on the weights.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.