Image region mapping device, 3D model generating apparatus, image region mapping method, and image region mapping program
US9750474B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2015 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Apr 15, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/547
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An X-ray image acquiring unit, by irradiating a blood vessel through which contrast medium is passing with X-rays of equal intensity at first and second photographing angles, acquires first and second X-ray images. An absorption property acquiring unit acquires, from brightness of the contrast medium, an X-ray absorption property in a first image region corresponding to a portion of the blood vessel in the first X-ray image. An absorption property acquiring unit acquires, from brightness of the contrast medium, an X-ray absorption property of each of plural second image regions corresponding to a portion of the blood vessel in the second X-ray image as candidate corresponding image regions of the first image region. A similarity degree calculator calculates a similarity degree between the acquired absorption properties. A corresponding region determiner determines the second image region having the maximum similarity degree as a corresponding region of the first image region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.