Monitoring device, monitoring method and program for monitoring
US7266220B2 · kind B2 · utility
21Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2003 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Aug 5, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30261
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In a monitoring device for vehicles, an optical flow detection section determines an optical flow from an image taken with a camera. A background flow estimation section determines a background flow, which is a flow for the camera image under the assumption that the image is a background, based on the motion of the vehicle. An approaching object detection section detects motion of an object in the surroundings of the vehicle by comparing the optical flow with the background flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.