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Camera-aware representation learning for person re-identification
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AI
DOI：10.1016/j.neucom.2022.11.009.png)
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摘要
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Person re-identification (ReID) aims to associate the same person across non-overlapping cameras. However, most of existing works neglect the issue of camera-imbalanced data distribution. Consequently, pedestrian representation learning gives preference to the head cameras, which have com-paratively more training data, and disregards the tail cameras, which have relatively less training data. In this paper, we propose a novel framework for camera-aware representation learning to overcome this issue, named CARL. On the proxy level representation learning, CARL presents a multiple-center soft -max loss to correct the head camera bias and presents a hard sub-center mining strategy to improve the discrimination of tail camera samples. On the pair-wise level representation learning, CARL builds a camera-balanced memory bank (CBM) to re-balance the sample pair distribution and proposes a camera-paired loss for pair-wise metric learning. Extensive experiments and ablation studies on MSMT17, the current largest ReID dataset with massive camera-imbalanced data distribution, demon-strate that our CARL is superior to previous metric learning based ReID methods and achieves state-of-the-art performance. (c) 2022 Elsevier B.V. All rights reserved.
Keyword:
Camera-imbalanced data distribution
Sub -center hard mining
Camera -balanced memory bank
Multiple -center Softmax
期刊
IF:
6.5
论文数:
2.5W
被引数:
6.5W
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