Camera detection of human activity with co-occurrence
US11580833B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2021 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Apr 24, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/19695
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and apparatus for camera detection of human activity with co-occurrence are disclosed. A method includes detecting a person in an image captured by a camera; in response to detecting the person in the image, determining optical flow in portions of a first set of images; determining that particular portions of the first set of images satisfy optical flow criteria; in response to determining that the particular portions of the first set of images satisfy optical flow criteria, classifying the particular portions of the first set of images as indicative of human activity; receiving a second set of images captured by the camera after the first set of images; and determining that the second set of images likely shows human activity based on analyzing portions of the second set of images that correspond to the particular portions of the first set of images classified as indicative of human activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.