A Window-Based Classifier for Automatic Video-Based Reidentification

The vast quantity of visual data generated by the rapid expansion of large scale distributed multicamera networks, makes automated person detection and reidentification (RE-ID) essential components of modern surveillance systems. However, the integration of automated person detection and RE-ID algorithms is not without problems, and the errors arising in this integration must be measured (e.g., detection failures that may hamper the RE-ID performance). In this paper, we present a window-based classifier based on a recently proposed architecture for the integration of pedestrian detectors and RE-ID algorithms, that takes the output of any bounding-box RE-ID classifier and exploits the temporal continuity of persons in video streams. We evaluate our contributions on a recently proposed dataset featuring 13 high-definition cameras and over 80 people, acquired during 30 min at rush hour in an office space scenario. We expect our contributions to drive research in integrated pedestrian detection and RE-ID systems, bringing them closer to practical applications.