Title
Compact Triplet Loss for person re-identification in camera sensor networks.
Abstract
The triplet loss in deep learning has achieved promising results for person re-identification (re-ID) in camera sensor networks. However, it neglects the relationship among pedestrian images captured from different sensors, which results in a relatively large intra-class variation. In this paper, we propose a novel loss function named Compact Triplet Loss (CTL) for training Convolutional Neural Networks (CNNs), which not only decreases the intra-class variation but also increases the inter-class variation to improve the generalization ability of person re-ID model. Specifically, CTL simultaneously considers three aspects for pedestrian representations. It pushes the pedestrian images to be closer to their corresponding centers and meanwhile forces different centers are away from each other. In addition, CTL forces the distance between the positive sample pair is smaller than that of the negative sample pair. Finally, we integrate the proposed CTL and the cross-entropy loss to perform multi-task learning. We evaluate the proposed method on Market1501, DukeMTMCreID and CUHK03, and the experimental results reveal our method exceeds other state-of-the-art methods by a large margin.
Year
DOI
Venue
2019
10.1016/j.adhoc.2019.101984
Ad Hoc Networks
Keywords
Field
DocType
Camera sensor networks,Convolutional neural network,Person re-identification,Compact Triplet Loss
Computer vision,Convolutional neural network,Computer science,Camera sensor networks,Artificial intelligence,Deep learning,CTL*,Distributed computing
Journal
Volume
ISSN
Citations 
95
1570-8705
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Tongzhen Si100.34
Zhong Zhang214132.42
Shuang Liu33622.95