Method for stop sign law enforcement using motion vectors in video streams
US10018703B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2012 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | May 31, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/513
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for enforcing traffic signal compliance includes acquiring a series of temporal related image frames including a target area. Each image frame includes pixel data representative of the target area. The method includes generating one or more motion vectors between two or more of the image frames. The motion vectors are the type produced by compressing the pixel data associated with the two or more image frames. The method includes associating a cluster of motion vectors with a vehicle. The method further includes tracking a position of the vehicle across the two or more image frames. Using the tracking results, the method includes determining whether the vehicle stops in the target area. For the vehicle being determined as not stopping, the method includes signaling an occurrence of noncompliance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.