Patent Document ID: 8842881
Application ID: 13456399

Base Claim:
1. A method for detecting and tracking a target, comprising: detecting the target using a plurality of feature cues; fusing the plurality of feature cues to form a set of target hypotheses; tracking the target based on the set of target hypotheses and a scene context analysis; and updating the tracking of the target based on a target motion model; wherein the plurality of feature cues is generated by at least a first detector of a first type and a second detector of a second type, wherein the first and second types are different; wherein the first detector is a appearance-based detector and the second detector is a silhouette-based detector; and wherein the tracking is used to compensate for a motion of a radiation source tracked by a radiation imaging device.

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Claim 10:
10. The method of claim 1 , wherein updating the tracking of the target based on the target motion model comprises defining a nonlinear Bayesian tracking problem and solving the nonlinear Bayesian tracking problem with a particle-filter-based tracking algorithm.