Person Re-Identification by Dual-Regularized KISS Metric Learning
Person Re-Identification by Dual-Regularized KISS Metric Learning
复制标题
通过双正则 KISS 度量学习进行人员重新识别
DOI:
10.1109/tip.2016.2553446
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发表时间:
2016-06
影响因子:
10.6
通讯作者:
Yuan Yan Tang
中科院分区:
文献类型:
--
作者:
Dapeng Tao;Yanan Guo;Mingli Song;Yaotang Li;Zhengtao Yu;Yuan Yan Tang
Person re-identification aims to match the images of pedestrians across different camera views from different locations. This is a challenging intelligent video surveillance problem that remains an active area of research due to the need for performance improvement. Person re-identification involves two main steps: feature representation and metric learning. Although the keep it simple and straightforward (KISS) metric learning method for discriminative distance metric learning has been shown to be effective for the person re-identification, the estimation of the inverse of a covariance matrix is unstable and indeed may not exist when the training set is small, resulting in poor performance. Here, we present dual-regularized KISS (DR-KISS) metric learning. By regularizing the two covariance matrices, DR-KISS improves on KISS by reducing overestimation of large eigenvalues of the two estimated covariance matrices and, in doing so, guarantees that the covariance matrix is irreversible. Furthermore, we provide theoretical analyses for supporting the motivations. Specifically, we first prove why the regularization is necessary. Then, we prove that the proposed method is robust for generalization. We conduct extensive experiments on three challenging person re-identification datasets, VIPeR, GRID, and CUHK 01, and show that DR-KISS achieves new state-of-the-art performance.
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DOI:
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发表时间:
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DOI:
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发表时间:
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影响因子:
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