Using Stereo Recordings to Extract Pedestrian Trajectories Automatically in Space

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For a proper understanding and modeling of pedestrian dynamics reliable empirical data are necessary for analysis and verification. Therefore we have performed a series of experiments with a large number of persons. For the time-efficient automatic extraction of accurate planar pedestrian trajectories we developed the program PeTrack. We now have extended the software to stereo recordings, which allows a direct height measurement without additional markers and to extract trajectories on stairs.