Patent ID: 8610771

Claim:
A method to track one or more objects of interest in an Augmented Reality (AR) system, the method comprising: receiving signals at each one of a plurality of tracking sensors, wherein each of the plurality of tracking sensors form part of a passive broadband sensing network, the passive broadband sensing network includes a plurality of passive receivers arranged at different positions in a scene and adapted to perform collaborative tracking of the scene by sensing signals from a plurality of transmission sources, the received signals correspond to one or more of a direct signal and/or an echo signal, each echo signal is associated with a corresponding one of the direct signals that is scattered by an object of interest, and the direct signals are transmitted from transmission sources that include one or more of: TV broadcast towers, Global System for Mobile communications (GSM) towers, Code Division Multiple Access (CDMA) cellular communication towers, Amplitude Modulation (AM) or Frequency Modulation (FM) broadcast towers, Digital Audio Broadcasting (DAB) sources, Digital Video Broadcasting-Terrestrial (DVB-T) sources, Wireless Local Area Network (WLAN) access points, Wide Area Network (WAN) access points, Metropolitan Area Network (MAN) access points, and/or Personal Area Network (PAN) access points; processing the received signals to generate data associated with the object of interest through one or more of determining a location of one or more feature points in an image, computation of affine projections, tracking of edges, and filtering, and wherein the data corresponds to one or more of a position parameter and/or a motion parameter associated with the object of interest; developing a point-to-point communication layer to enable communication and sharing of information between any two sensors in the passive broadband sensing network; and augmenting the scene that includes the object of interest, by employing one or more of the position parameter and/or the motion parameter to augment the object of interest in the scene with at least one virtual object.