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- W3160339934 abstract "This paper introduces our solution for the Track2 in AI City Challenge 2021 (AICITY21). The Track2 is a vehicle re-identification (ReID) task with both the real-world data and synthetic data. We mainly focus on four points, i.e. training data, unsupervised domain-adaptive (UDA) training, post-processing, model ensembling in this challenge. (1) Both cropping training data and using synthetic data can help the model learn more discriminative features. (2) Since there is a new scenario in the test set that dose not appear in the training set, UDA methods perform well in the challenge. (3) Post-processing techniques including re-ranking, image-to-track retrieval, inter-camera fusion, etc, significantly improve final performance. (4) We ensemble CNN-based models and transformer-based models which provide different representation diversity. With aforementioned techniques, our method finally achieves 0.7445 mAP score, yielding the first place in the competition. Codes are available at https://github.com/michuanhaohao/AICITY2021_Track2_DMT." @default.
- W3160339934 created "2021-05-24" @default.
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- W3160339934 date "2021-05-20" @default.
- W3160339934 modified "2023-10-18" @default.
- W3160339934 title "An Empirical Study of Vehicle Re-Identification on the AI City Challenge" @default.
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- W3160339934 doi "https://doi.org/10.48550/arxiv.2105.09701" @default.
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