System and method for detecting generic items in image sequence
US9064161B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2007 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Apr 6, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/68
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for detecting the presence of known or unknown objects based on visual features is disclosed. In the preferred embodiment, the system is a checkout system for detecting items of merchandise on a shopping cart. The merchandise checkout system preferably includes a feature extractor for extracting visual features from a plurality of images; a motion detector configured to detect one or more groups of the visual features present in at least two of the plurality of images; a classifier to classify each of said groups of the visual features based on one or more classification criteria, wherein each of the one or more parameters is associated with one of said groups of visual features; and an alarm configured to generate an alert if the one or more parameters for any of said groups of the visual features satisfy one or more classification criteria.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.