Image monitoring apparatus and image monitoring method
US6339375B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2000 |
| Grant date | Jan 15, 2002 |
| Priority date | — |
| Expiry date | Jun 30, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V8/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An image monitoring apparatus for detecting a confined passenger in an elevator just from an image, without using a dedicated sensor. The image monitoring apparatus includes an image acquirer for acquiring an image; a door area definer for defining a door defining area for the image; a door extracter for extracting a door image from the door defining area of the image; a door open/closed state sensor for determining whether the door is open or closed; a passenger area definer for defining a passenger defining area; a passenger extracter for extracting a passenger image from the passenger defining area of the image; a passenger presence determination for determining whether a passenger is present; a decision unit for determining whether a passenger is confined in the closed space by whether the door is open or closed and the passenger presence determination; and an alarm for issuing an alarm if a passenger has been confined in the closed space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.