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Detecting item interaction and movement

  • US 10,268,983 B2
  • Filed: 06/26/2013
  • Issued: 04/23/2019
  • Est. Priority Date: 06/26/2013
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • a plurality of cameras positioned within a materials handling facility, each camera of the plurality of cameras configured to generate images of objects located within the materials handling facility;

    one or more processors; and

    a memory coupled to the one or more processors and storing program instructions that when executed by the one or more processors cause the one or more processors to at least;

    determine a location of a user within the materials handling facility, wherein the location is near an inventory location;

    retrieve, from a data store, a user item list associated with the user, the user item list indicating at least one of an item to be picked by the user, an item picked by the user, an item to be stowed by the user, or an item stowed by the user,receive, from at least one of the plurality of cameras, a first image of at least a portion of a hand of the user;

    determine that the first image was captured prior to the hand of the user moving into the inventory location;

    receive, from at least one of the plurality of cameras, a second image of at least a portion of the hand of the user;

    determine that the second image was captured after the hand of the user is removed from the inventory location;

    compare the first image and the second image to determine that the second image includes a representation of an object held in the hand of the user;

    in response to a determination that the second image includes a representation of an object held in the hand of the user, identify an item of inventory associated with the inventory location;

    determine that the object corresponds with the item of inventory; and

    add to the user item list, an item identifier representative of the item.

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