Situation determining apparatus, situation determining method, situation determining program, abnormality determining apparatus, abnormality determining method, abnormality determining program, and congestion estimating apparatus
US8472715B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2008 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Jul 11, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention provides a situation and abnormality determining apparatus, method, and program capable of easily determining the situation of a monitoring place and the degree of congestion. In addition, the invention provides a congestion estimating apparatus capable of easily and accurately estimating the degree of congestion of persons using an image. A situation determining apparatus for analyzing captured moving images or a plurality of captured still images to determine a movement situation and/or a degree of congestion of persons includes: a local image change ratio calculating unit that calculates a time change ratio of a brightness value in a local area of the captured images; and a situation determining unit that analyzes a histogram of the time change ratios of a plurality of local areas calculated by the local image change ratio calculating unit and determines the movement situation of the persons and/or the degree of congestion of the persons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.