Journal
2020 25TH INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION (ICPR)
Volume -, Issue -, Pages 2732-2739Publisher
IEEE COMPUTER SOC
DOI: 10.1109/ICPR48806.2021.9413282
Keywords
person re-identification; metric learning; top-rank counter; deep learning
Categories
Funding
- National Science Foundation of China [NSFC 61906194]
- Liaoning Collaboration Innovation Center
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In this paper, a new method based on deep metric counter metric is proposed to improve top rank accuracy by optimizing the occurrence count of correct top-rank matches, and a progressive hard sample mining strategy is introduced for training and performance boosting. Extensive experiments demonstrate that the proposed top-rank counter metric outperforms other loss function based deep metrics and achieves state-of-the-art accuracies.
In the research field of person re-identification, deep metric learning that guides the efficient and effective embedding learning serves as one of the most fundamental tasks. Recent efforts of the loss function based deep metric learning methods mainly focus on the top rank accuracy optimization by minimizing the distance difference between the correctly matching sample pair and wrongly matched sample pair. However, it is more straightforward to count the occurrences of correct top-rank candidates and maximize the counting results for better top rank accuracy. In this paper, we propose a generalized logistic function based metric with effective practicalness in deep learning, namely thedeep top-rank counter metric, to approximately optimize the counted occurrences of the correct top-rank matches. The properties that qualify the proposed metric as a well-suited deep re-identification metric have been discussed and a progressive hard sample mining strategy is also introduced for effective training and performance boosting. The extensive experiments show that the proposed top-rank counter metric outperforms other loss function based deep metrics and achieves the state-of-the-art accuracies.
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