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VILSS: Joint Tracking and Event Analysis for Carried Object Detection
Tuesday 8, December, 2015 @ 12:00 - 13:00
Aryana Tavanai, University of Leeds
Tracking and Event Analysis are areas of video analysis which have great importance in robotics applications and automated surveillance. Although they have been greatly studied individually, there has been little work on performing them jointly where they mutually influence and improve each other. In this talk I will present our novel approach for jointly estimating the track of a moving object and recognising the events in which it participates. First, I will introduce our geometric carried object detector. Then I will present our tracklet building approach which enforces spatial consistency between the carried objects and other pre-tracked entities in the scene. Finally, I will present our joint tracking and event analysis framework posed as maximisation of a posterior probability defined over event sequences and temporally-disjoint subsets of tracklets. We evaluate our approach using tracklets from three state of the art trackers and demonstrate improved tracking performance in each case, as a result of jointly incorporating events, while also subsequently improving event recognition.