Recognition of 3D objects
US12400348B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2019 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | May 13, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
3D objects in the form of human faces are recognised at or adjacent an entrance to a building. Cameras are spaced horizontally from one another in an array to provide multiple viewpoints of a common scene with overlapping fields of view. For each of the cameras, a sequence of images of a face is generated and each of those images is normalised to a canonical view. One or more best normalised image for each camera is selected and feature data is extracted from the selected image. A recognition processor compares the extracted feature data of each selected image with stored, corresponding feature data of known 3D objects. A recognition result is output when the extracted feature data of at least one of the selected images corresponds to stored, corresponding feature data of at least one of the known 3D objects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.