Device for the acquisition of a stereoscopy image pair
US9621875B2 · kind B2 · utility
Inventors
Key dates
| Filing date | May 11, 2015 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Aug 20, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/254
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A stereophotogrammetry device intended to reduce the 3D surface reconstruction artifacts due to specular reflections when a unique camera body is used. Indeed, specular reflection of the camera flash on shiny objects are creating virtual objects in the scene inducing spikes in reconstruction. The device is constituted of a computing unit (C) enabling 3D reconstruction, a unique camera body (5) equipped with a non-polarized double-optics (OA) and (OB) and two light sources (2A) and (2B) separated by the same distance as the double-optics and aligned with these such that (2A) is aligned with (OA) and (2B) is aligned with (OB) relative to the subject (S). According to geometry considerations, the computing unit (C) is defining the best matching amongst four possible matches relative to the specular spot position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.