| 摘要 |
Image capture devices attached to a computer processor are located in a retail store. Items of merchandise for sale are tracked from their display position to a shopping container using optical tracking software. The software is capable of identifying the items and containers optically. A list of items in each container is maintained in a database. A customer may request a listing of items in a cart at any time via a query. At checkout time, there is no need to scan the items.
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