Non-scan detect system for a retail checkout station

US7503490B1 · kind B1 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Russell P. Bobbitt · New York, US
• Myron D. Flickner · San Jose, US
• Arun Hampapur · Norwalk, US
• Charles A. Otto · Lansing, US
• Sharathchandra U. Pankanti · Darien, US
• Unsang Park · Suwon-si, KR
• Akira Yanagawa · New York, US
• Yun Zhai · Pound Ridge, US

Key dates

• Filing date: Aug 8, 2008
• Grant date: Mar 17, 2009
• Expiry date: Aug 8, 2028

Classification

• Technology area (CPC G): Physics
• CPC primary: G07G1/0054
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A non-scan detect system for a retail checkout station includes a non-scan detect module. The non-scan detect module, when operated, causes the non-scan detect system to detect the passing of an item across a scanner device of a retail checkout station, determine that the item passing across the scanner device was not registered as a scan, establish a potential non-scanned item based on the item not being registered as a scan, obtain an image of the potential non-scanned item, establish a scanned item based on an item passing across the scanner device being registered as a scan, extract features associated with the scanned item, compare the features associated with the scanned item with the image of the potential non-scanned item, and trigger an actual non-scan if the features of the scanned item do not substantially match the image of the potential non-scanned item.