Video-based system and method for detecting exclusion zone infractions
US8666117B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2012 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Sep 21, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/25
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for determining a parking violation includes receiving video data as a sequence of frames provided by a camera. The method includes defining a location of an exclusion zone in the video data. The method includes detecting a vehicle located in the defined exclusion zone. The detecting includes determining a background in an initial frame of the video data and determining a background in a select frame by applying a predetermined updating process. The detecting includes subtracting the background of the select frame from the initial frame to obtain an image difference. The detecting includes classifying the pixels in the image difference as foreground or background pixels and classifying the pixels in the foreground image as vehicle or non-vehicle pixels. The method includes determining a duration that the detected vehicle is in the exclusion zone based on a number of the sequence of frames including the detected vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.