Smoke detection method and apparatus
US11210916B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2019 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Mar 1, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10021
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of this disclosure provide a smoke detection method and apparatus. The apparatus includes a processor configured to detect foreground blobs in images of a plurality of frames in a video; determine motion areas of detected foreground blobs; determine a first degree of overlapping of the foreground blobs in images of at least two frames, and/or determine a second degree of overlapping of the foreground blobs and motion areas to which the foreground blobs correspond; determine interfering foreground blobs according to the first degree of overlapping and/or the second degree of overlapping; and extract features from motion areas of remaining foreground blobs with the interfering foreground blobs being removed, and detect smoke according to the features. With the embodiments of this disclosure, accuracy of smoke detection may be increased, and false detection resulted from such interfering objects as water blobs, or light spots, etc., may be avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.