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StRDAN: Synthetic-to-Real Domain Adaptation Network for Vehicle Re-Identification

2020-04-25 01:00:30
Sangrok Lee, Eunsoo Park, Hongsuk Yi, Sang Hun Lee
arXiv_CV
       
Abstract

Vehicle re-identification aims to obtain the same vehicles from vehicle images. It is challenging but essential for analyzing and predicting traffic flow in the city. Although deep learning methods have achieved enormous progress in this task, requiring a large amount of data is a critical shortcoming. To tackle this problem, we propose a novel framework called Synthetic-to-Real Domain Adaptation Network (StRDAN), which is trained with inexpensive large-scale synthetic data as well as real data to improve performance. The training method for StRDAN is combined with domain adaptation and semi-supervised learning methods and their associated losses. StRDAN shows a significant improvement over the baseline model, which is trained using only real data, in two main datasets: VeRi and CityFlow-ReID. Evaluating with the mean average precision (mAP) metric, our model outperforms the reference model by 12.87% in CityFlow-ReID and 3.1% in VeRi.

Abstract (translated)

URL

https://arxiv.org/abs/2004.12032

PDF

https://arxiv.org/pdf/2004.12032.pdf

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