Patent ID: 9542620
Date: 2017-01-10
CPC Classifications: G06F,G06K,G06T,G08G

Claim:
1. A method comprising: receiving an indication of a license plate number of a vehicle associated with a person of interest onto a computing system including a non-transitory computer readable medium storing an amount of program code that when executed by the computing system is for: determining a plurality of License Plate Recognition (LPR) instances recognized within a search zone around any of a plurality of possible locations of the person of interest, wherein a possible location of the person of interest includes any of a location of an LPR instance that matches the license plate number and an address location associated with the person of interest; determining a plurality of clusters of recognized LPR instances based on a visiting time period that an LPR unit collected LPR instances within the search zone, wherein the determining of the plurality of clusters involves determining a time difference between successive LPR instances and assigning the successive LPR instances to the same cluster if the time difference is less than a predetermined threshold value; determining at least one attribute of each of the clusters; ranking the plurality of possible locations of the person of interest based at least in part on the at least one attribute of each of the clusters of LPR instances; and communicating a list of address locations and time periods where the person of interest may be reached based on the ranking of the plurality of possible locations of the person of interest.