Patent ID: 9679327
Date: 2017-06-13
CPC Classifications: G01B,G01G,G01S,G06F,G06K,G06Q,G06T,G07G,H04N

Claim:
1. A computer-implemented method for verifying a plurality of items for purchase, comprising: receiving a digital image, from at least one digital camera, of a plurality of items supported by a platen of a scale; receiving partial weight measurements from a plurality of load cells supporting the platen, wherein the partial weight measurements correspond to the plurality of items supported by the platen; performing image recognition on the received digital image to identify the plurality of items; determining estimated weights for the identified plurality of items in the received digital image; calculating estimated locations of centers of mass for the identified plurality of item relative to the platen using the received digital image; calculating, using a computer processor, an estimated location of a cumulative center of mass for the plurality of items in the digital image, based on the respective determined estimated weights and calculated estimated locations of centers of mass for the plurality of items, wherein the estimated location of the cumulative center of mass is relative to the platen of the scale; calculating, using the computer processor, a location of a measured cumulative center of mass for the items, based on the partial weight measurements received from the plurality of load cells supporting the platen; and generating an alert upon the estimated location of the cumulative center of mass for the items differing from the location of the measured cumulative center of mass by at least a first threshold amount.