System and method for automatic extraction of spinal cord from 3D volumetric images
US7657072B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2006 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Aug 1, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30012
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of extracting a spinal cord from a digitized medical image includes providing a digitized medical image, selecting a set of points from said image as candidates for belonging to the spine, initializing a probability for each candidate point to belong to said spine, minimizing a weighted sum of square differences of image intensities of said candidate points and intensities determined by a mathematical model of said spine to estimate parameter values for said model, calculating a residual error for each point from the differences at each point between an estimated image intensity calculated from said estimated model parameters and an actual image intensity, updating the candidate point probabilities from said residual errors, and eliminating candidate points whose probability falls below a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.