Image processing apparatus, image processing method, and computer-readable recording device
US9743825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2014 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Nov 23, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10068
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An image processing apparatus performs positioning between a plurality of spectral band images obtained by capturing images inside a lumen using a plurality of rays of light having wavelength bands different from one another. The image processing apparatus includes: a spectral band image acquisition unit configured to acquire the spectral band images; a spatial frequency component extraction unit configured to extract feature data for each spatial frequency band from each pixel in at least one spectral band image of the spectral band images; a weight calculation unit configured to calculate weights for each spatial frequency band given to the at least one spectral band image, based on the feature data for each spatial frequency band extracted from each pixel in the at least one spectral band image; and a positioning unit configured to perform positioning between the spectral band images based on the weights for each spatial frequency band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.