Patent ID: 9031948
Filing Date: 2015-05-12
Classification: G06F,G06K,G06N

Abstract:
1. A method comprising: receiving a license plate recognition (LPR) information query including an indication of a physical location and a target license plate number; determining a plurality of license plate recognition (LPR) instances within a search area of the physical location in response to receiving the LPR information query; determining a first license plate number within a first search zone and a first time window around a first LPR instance of the target license plate number, wherein the first LPR instance comprises an indication of a first physical location of the target license plate number and an indication of a first time when an image of the target license plate number was captured; determining a second license plate number within a second search zone and a second time window around a second LPR instance of the target license plate number, wherein the second LPR instance comprises an indication of a second physical location of the target license plate number and an indication of a second time when an image of the target license plate number was captured; and associating the first license plate number and the target license plate number if the first license plate number matches the second license plate number.