The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 2001
Filed:
Feb. 06, 1998
Ralph N. Crabtree, Atlanta, GA (US);
Jianzhong Huang, Snellville, GA (US);
Junhoy Kim, Tucker, GA (US);
NCR Corporation, Dayton, OH (US);
Abstract
A system and method for detecting hand and item movement patterns comprising a video camera positioned to view a scene which includes therein a scanner for scanning items, wherein the video camera generates a sequence of video frames representing activity in the scene, processing means coupled to the video camera, the processing means performing steps of identifying regions of a video frame representing a hand; and tracking hand movement with respect to the scanner over a plurality of video frames. Event information descriptive of user activity at the self-service checkout terminal is generated based on the tracking information.