Three-dimensional reconstructions of a breast from two X-ray mammographics
US7519212B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2001 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | Dec 28, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30068
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods are described for the production of a three-dimensional reconstruction of a undeformed object from two different views of the object under deformation using a volume constraint and also by matching corresponding features in the two images. The volume constraint involves assuming that the deformed volume is the same as the undeformed volume, and calculating the deformed volume from one of the images. Further, the deformation of the object can be parameterised by finding corresponding image entities in the each of the images. The method is particularly applicable to breast mammograms in which case the two images are the cranio-caudal (CC) image and medio-lateral oblique (MLO) image whose angular separation varies from 35 to 60 degrees. The image entities which are detected in the two images are microcalcifications, and these are matched by detecting a value representing their volume a looking for matches in this value between the two images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.