US Patent 10497014 Retail store digital shelf for recommending products utilizing facial recognition in a peer to peer network

A method that expedites processing of facial recognition from facial images captured by different cameras in a local area network (LAN). The method generates a first facial pattern for a first facial image of a person and a first facial identification that is unique to the first facial pattern. A second facial pattern is generated from a second facial image and compared, by a computer in the LAN, with the first facial pattern to determine whether the first facial image and the second facial image are both from the same person. A second facial identification of the second facial pattern is generated when the second facial image is determined to be different from the first person. If the second facial pattern is determined to be the same as the first facial pattern generated from the first facial image of the first person, the second facial pattern is assigned the first facial identification. The first and second facial patterns and their facial identifications are shared among the computers in the LAN to expedite processing of facial recognition.