Multiple-shot human re-identification by Mean Riemannian Covariance Grid

Authors:
S. Bak;E. Corvee;F. Bremond;M. Thonnat
Affiliations:
PULSAR Group, INRIA Sophia Antipolis, Sophia Antipolis, France;PULSAR Group, INRIA Sophia Antipolis, Sophia Antipolis, France;PULSAR Group, INRIA Sophia Antipolis, Sophia Antipolis, France;PULSAR Group, INRIA Sophia Antipolis, Sophia Antipolis, France
Venue:
AVSS '11 Proceedings of the 2011 8th IEEE International Conference on Advanced Video and Signal Based Surveillance
Year:
2011

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Abstract

Human re-identification is defined as a requirement to determine whether a given individual has already appeared over a network of cameras. This problem is particularly hard by significant appearance changes across different camera views. In order to re-identify people a human signature should handle difference in illumination, pose and camera parameters. We propose a new appearance model combining information from multiple images to obtain highly discriminative human signature, called Mean Riemannian Covariance Grid (MRCG). The method is evaluated and compared with the state of the art using benchmark video sequences from the ETHZ and the i-LIDS datasets. We demonstrate that the proposed approach outperforms state of the art methods. Finally, the results of our approach are shown on two other more pertinent datasets.