Method and apparatus for calibration of stereo-optical three-dimensional surface-mapping system
US9456200B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2013 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Jun 1, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0074
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for, and method of, extracting a surface profile from a stereo pair of images obtained at an arbitrary setting S of an optical system, includes determining surface profile reconstruction parameters for images obtained with the optical system at a reference setting So of the optical system; determining warping parameters for a digital image processor for warping images obtained with the optical system at the arbitrary setting S into images corresponding to the reference setting So; obtaining the stereo pair of images from at least one camera of the optical system; warping the stereo pair of images into images corresponding to the reference setting So, and using the surface profile reconstruction parameters to determine the surface profile. In a particular embodiment, the surface profile is passed to a computer model of tissue deformation and used to determine an intra-surgery location of a tumor or other anatomic feature of tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.