Patent ID: 7738008

Claim:
A computer-implemented system for simultaneously discriminating 3D moving objects in a surveillance area comprising, in combination: at least two IR cameras positioned at pre-established heights and distance apart focused on said surveillance area at pre-determined polar angles that establish optical center lines of site for each of said at least two IR cameras so that measured data from said at least two IR cameras is used to produce target sizes in linear dimensions and physical locations; at least one microprocessor in electronic communication with said at least two IR cameras; at least one memory in electronic communication with said at least one microprocessor; at least one database associated with a user stored in said at least one memory containing data of said pre-determined polar angles, said pre-established heights and distance apart, input data simultaneously captured by said at least two IR cameras and electronically communicated to said microprocessor for storage into said at least one database, and data of pre-defined IR signatures classified as threats by said user; and a computer program comprising program modules executable by said at least one microprocessor, wherein said at least one microprocessor is directed by said program modules of said computer program to (a) compute IR signatures of said 3D moving objects using said data of said pre-determined polar angles, said pre-established heights and distance apart, and said input data producing computed IR signatures, (b) compare said computed IR signatures to said data of pre-defined IR signatures classified as threats by said user, and (c) electronically notify said user when said computed IR signatures match said data of pre-defined IR signatures classified as threats by said user.