Online Multi-Person Tracking-by-Detection from a Single, Uncalibrated Camera

Michael Breitenstein, Fabian Reichlin, Bastian Leibe, Esther Koller-Meier, Luc Van Gool
IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol.33, No. 9, pp. 1820-1833.

In this paper, we address the problem of automatically detecting and tracking a variable number of persons in complex scenes using a monocular, potentially moving, uncalibrated camera. We propose a novel approach for multi-person tracking-bydetection in a particle filtering framework. In addition to final high-confidence detections, our algorithm uses the continuous confidence of pedestrian detectors and online trained, instance-specific classifiers as a graded observation model. Thus, generic object category knowledge is complemented by instance-specific information. The main contribution of this paper is to explore how these unreliable information sources can be used for robust multi-person tracking. The algorithm detects and tracks a large number of dynamically moving persons in complex scenes with occlusions, does not rely on background modeling, requires no camera or ground plane calibration, and only makes use of information from the past. Hence, it imposes very few restrictions and is suitable for online applications. Our experiments show that the method yields good tracking performance in a large variety of highly dynamic scenarios, such as typical surveillance videos, webcam footage, or sports sequences. We demonstrate that our algorithm outperforms other methods that rely on additional information. Furthermore, we analyze the influence of different algorithm components on the robustness.

» Show BibTeX

author = {Breitenstein, Michael D. and Reichlin, Fabian and Leibe, Bastian and Koller-Meier, Esther and Van Gool, Luc},
title = {Online Multiperson Tracking-by-Detection from a Single, Uncalibrated Camera},
journal = {IEEE Trans. Pattern Anal. Mach. Intell.},
issue_date = {September 2011},
volume = {33},
number = {9},
month = sep,
year = {2011},
issn = {0162-8828},
pages = {1820--1833},
numpages = {14},
url = {http://dx.doi.org/10.1109/TPAMI.2010.232},
doi = {10.1109/TPAMI.2010.232},
acmid = {2007007},
publisher = {IEEE Computer Society},
address = {Washington, DC, USA},
keywords = {Multi-object tracking, tracking-by-detection, detector confidence particle filter, pedestrian detection, particle filtering, sequential Monte Carlo estimation, online learning, detector confidence, surveillance, sports analysis, traffic safety.},

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