Image depth determining method and living body identification method, circuit, device, and medium
US11232315B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2021 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Apr 23, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30244
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image depth determining method and a living body identification method, a circuit, a device, and a medium. The image depth determining method includes obtaining pixel coordinates of a feature point pair associated with an object point on a subject, determining a first straight line passing through the origin of a first camera coordinate system of a first camera based on first pixel coordinates and intrinsic parameters of the first camera, determining a second straight line passing through the origin of a second camera coordinate system of a second camera based on second pixel coordinates and intrinsic parameters of the second camera, and determining the depth of the object point based on the first straight line, the second straight line, and extrinsic parameters describing a relative position relationship between the first camera and the second camera.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.