Thronging determination device and thronging determination method
US9165195B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2014 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Apr 14, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/181
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thronging determination device for determining occurrence of a thronging state in which persons are gathered locally, includes an image receiving unit that receives a moving image, an image dividing unit that divides an input image received by the image receiving unit into local regions, and a degree-of-congestion estimating unit that judges the degree of congestion in plural ones of the local regions. If the degree-of-congestion estimating unit judges that the degree of congestion in the plural ones of the local regions is lower than a prescribed value, a thronging determination is performed using local regions that are smaller in number than the local regions that have been used in estimating the degree of congestion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.