Belief consensus for distributed action recognition

In this work, we consider a camera network where processing is distributed across the cameras. Our goal is to recognize actions of multiple targets consistently observed over the entire network. To obtain consistent and better results we need to properly fuse the action scores from multiple cameras. There have been multiple works on distributed tracking and distributed data association for multiple targets in a camera network. We can use the data association results and tracking confidence scores to improve the action recognition results. We propose a consensus based framework for solving this problem in an integrated manner and with a completely distributed camera network architecture. We propose a novel method for weighting the action scores based on tracking confidences and show how the cameras can reach a consensus about the action of a target using belief consensus. We show real life experiments and performance metrics with multiple cameras and targets.