Systems, methods and, media for determining object motion in three dimensions using speckle images
US10152798B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2017 |
| Grant date | Dec 11, 2018 |
| Priority date | — |
| Expiry date | May 24, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/121
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In accordance with some embodiments, systems, methods and media for determining object motion in three dimensions using speckle images are provided. In some embodiments, a system for three dimensional motion estimation is provided, comprising: a light source; an image sensor; and a hardware processor programmed to: cause the light source to emit light toward the scene; cause the image sensor to capture a first defocused speckle image of the scene at a first time and capture a second defocused speckle image of the scene at a second time; generate a first scaled version of the first defocused image; generate a second scaled version of the first defocused image; compare each of the first defocused image, the first scaled version, and the second scaled version to the second defocused image; and determine axial and lateral motion of the object based on the comparisons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.