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Enhancing person re-identification by integrating gait biometric
Zheng Liu; Zhaoxiang Zhang; Qiang Wu; Yunhong Wang
Source PublicationNeurocomputing
AbstractPerson re-identification is an important problem for associating behavior of people monitored in surveillance camera networks. The fundamental challenges of person re-identification are the large appearance distortions caused by view angles, illumination and occlusions. To address these challenges, a method is proposed in this paper to enhance person re-identification by integrating gait biometric. The proposed framework consists of the hierarchical feature extraction and descriptor matching with learned metric matrices. Considering the appearance feature is not discriminative in some cases, the feature in this work composes of the appearance features and the gait feature for shape and temporal information. In order to solve the view-angle change problem and measuring similarity, data are mapped into a metric space so that distances between people can be measured more accurately. Then two fusion strategies are adopted. The score-level fusion computes distances on the appearance feature and the gait feature, respectively, and combine them as the final distance between samples. The feature-level fusion firstly installs two types of features in series and then computes distances by the fused feature. Finally, our method is tested on the CASIA gait dataset. Experiments show that integrating gait biometric is an effective way to enhance person re-identification.
KeywordPerson Re-identification Visual Surveillance Gait Fusion Strategy Metric Learning
Document Type期刊论文
Corresponding AuthorZhaoxiang Zhang
Recommended Citation
GB/T 7714
Zheng Liu,Zhaoxiang Zhang,Qiang Wu,et al. Enhancing person re-identification by integrating gait biometric[J]. Neurocomputing,2014,168(1):1144-1156.
APA Zheng Liu,Zhaoxiang Zhang,Qiang Wu,&Yunhong Wang.(2014).Enhancing person re-identification by integrating gait biometric.Neurocomputing,168(1),1144-1156.
MLA Zheng Liu,et al."Enhancing person re-identification by integrating gait biometric".Neurocomputing 168.1(2014):1144-1156.
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