Title
Vehicle Re-Identification Using Distance-Based Global and Partial Multi-Regional Feature Learning
Abstract
Vehicle re-identification supports cross-camera tracking and the location of specific vehicles in a smart city. The gallery images of vehicles are ranked based on the similarities in the appearance of objects to a vehicle query image. Previous work on vehicle re-identification has mainly focused on global or local analyses of predefined regions of vehicles to classify the vehicle images with a softmax loss function. On the one hand, separate global or predefined local regions of vehicles are often sensitive to perspective and occlusions. On the other hand, the embedding space supervised by the softmax loss function is not sufficiently compact for the object class. To solve these problems, we propose an end-to-end distance-based global and partial multi-regional deep network (DGPM) that combines multi-regional features to identify global and local differences. We exploit a three-branch architecture to learn the global and partial features from coarsely partitioned regions. A global similarity module is introduced to reduce the background information interference in the local branches. Unlike general classification, we design a distance-based classification layer that maintains consistency among criteria for similarity evaluation. Furthermore, we use spatiotemporal vehicle information to improve the vehicle re-identification results when the camera and shooting time are available. Systematic comparative evaluations performed on the large-scale VeRi and VehicleID datasets showed that our approach robustly achieved state-of-the-art performance. For instance, for the VeRi dataset, we achieve (79.39 + 2.78)% mAP and (96.19 + 2.26)% Rank-1 accuracy.
Year
DOI
Venue
2021
10.1109/TITS.2020.2968517
IEEE Transactions on Intelligent Transportation Systems
Keywords
DocType
Volume
Distance-based global and partial multi-regional network,global similarity,distance-based classification,vehicle re-identification
Journal
22
Issue
ISSN
Citations 
2
1524-9050
1
PageRank 
References 
Authors
0.35
0
5
Name
Order
Citations
PageRank
Xu Chen184.21
Haigang Sui24013.76
Jian Fang311.03
Wenqing Feng452.12
Mingting Zhou511.37