초록 ▼

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 th

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.

대표청구항 ▼

[ What is claimed is:] [1.]1. A system for detecting movement patterns with respect to at least one hand of an individual and an item in the individual's hand to be purchased at a checkout terminal, comprising:(a) a video camera positioned to view a scene which includes therein a scanner for scannin

[ What is claimed is:] [1.]1. A system for detecting movement patterns with respect to at least one hand of an individual and an item in the individual's hand to be purchased at a checkout terminal, comprising:(a) a video camera positioned to view a scene which includes therein a scanner for scanning items;(b) frame grabber means coupled to the video camera for generating a stream of video frames representing activity in the scene;(c) processor means coupled to the frame grabber means, the processor means performing steps of:(1) detecting whether the hand in a video frame;(2) tracking hand movement with respect to the scanner over a plurality of video frames and generating tracking information representative thereof including associated X and Y Cartesian coordinates for the location of the hand and the height and width of the hand;(3) eliminating tracking information corresponding to the detected hand;(4) determining the presence of the item to be purchased in the detected hand; and(5) generating event information descriptive of user activity at the checkout terminal based on the tracking information.