Adaptive Classification for Person Re-identification Driven by Change Detection

C. Pagano, E. Granger, R. Sabourin, G. L. Marcialis, F. Roli

Abstract

Person re-identification from facial captures remains a challenging problem in video surveillance, in large part due to variations in capture conditions over time. The facial model of a target individual is typically designed during an enrolment phase, using a limited number of reference samples, and may be adapted as new reference videos become available. However incremental learning of classifiers in changing capture conditions may lead to knowledge corruption. This paper presents an active framework for an adaptive multi-classifier system for video-to-video face recognition in changing surveillance environments. To estimate a facial model during the enrolment of an individual, facial captures extracted from a reference video are employed to train an individual-specific incremental classifier. To sustain a high level of performance over time, a facial model is adapted in response to new reference videos according the type of concept change. If the system detects that the facial captures of an individual incorporate a gradual pattern of change, the corresponding classifier(s) are adapted through incremental learning. In contrast, to avoid knowledge corruption, if an abrupt pattern of change is detected, a new classifier is trained on the new video data, and combined with the individual’s previously-trained classifiers. For validation, a specific implementation is proposed, with ARTMAP classifiers updated using an incremental learning strategy based on Particle Swarm Optimization, and the Hellinger Drift Detection Method is used for change detection. Simulation results produced with Faces in Action video data indicate that the proposed system allows for scalable architectures that maintains a significantly higher level of accuracy over time than a reference passive system and an adaptive Transduction Confidence Machine-kNN classifier, while controlling computational complexity.

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Paper Citation


in Harvard Style

Pagano C., Granger E., Sabourin R., Marcialis G. and Roli F. (2015). Adaptive Classification for Person Re-identification Driven by Change Detection . In Proceedings of the International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM, ISBN 978-989-758-076-5, pages 45-55. DOI: 10.5220/0005184700450055


in Bibtex Style

@conference{icpram15,
author={C. Pagano and E. Granger and R. Sabourin and G. L. Marcialis and F. Roli},
title={Adaptive Classification for Person Re-identification Driven by Change Detection},
booktitle={Proceedings of the International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM,},
year={2015},
pages={45-55},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005184700450055},
isbn={978-989-758-076-5},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM,
TI - Adaptive Classification for Person Re-identification Driven by Change Detection
SN - 978-989-758-076-5
AU - Pagano C.
AU - Granger E.
AU - Sabourin R.
AU - Marcialis G.
AU - Roli F.
PY - 2015
SP - 45
EP - 55
DO - 10.5220/0005184700450055