Three-dimensional joint structure measuring method
US7664297B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2002 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Jul 23, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30008
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method enabling a destroyed part of a joint or joint cartilage to be extracted accurately and at a high speed with a good repeatability and enabling quantitative and simple 3D analysis of the joint and the destroyed part, that is, a method of 3D image processing comprising filling in a medullary cavity region, comprised of a hollow region inside a joint, of a digitalized image of a cross-section of the examined joint using the Expansion and Shrinkage method, performing 3D labeling by a 3D image obtained by stacking digitalized images of cross-sections of the examined joint generated at a step of extracting a contour of the cross-sectional image of the joint or digitalized images of cross-sections of the examined joint not pre-processed, and defining the joint image to be evaluated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.