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An efficient fine-grained vehicle recognition method based on part-level feature optimization
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DOI：10.1016/j.neucom.2023.03.035.png)
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This paper presents an effective method for strengthening the discriminative ability of high-level deep features by enhancing and aggregating discriminative part-level features for the fine-grained vehicle recognition task. In general, the task of visual recognition concentrates more on the visual differences at the object level. However, for fine-grained object recognition, the visual differences between target objects typically exist in local discriminative areas, so it is more concerned about extracting fine-grained features from these part regions. In this context, we propose solving this issue with a novel fea-ture extraction method from two perspectives: the generation of more feature descriptors of part regions through the learning process of deep networks and the aggregation of part-level discriminative features. This approach is designed to improve the backbone networks to generate finer-level part features through a part-level feature enhancement module and to investigate the intrinsic part-level features of the backbone networks with the help of a feature aggregation module. The enhancement module effi-ciently finds the finer features highly correlated to the part regions. Then the feature aggregation module builds correlations of similar part features through feature grouping and fusion. Moreover, our proposed method does not require additional parts annotations and achieves comparable performance on two widely-used benchmarks for recognizing fine-grained vehicle types. Experimental results and explain-able visualizations demonstrate the effectiveness of the proposed method.& COPY; 2023 Elsevier B.V. All rights reserved.
Keyword:
Fine-grained feature
Vehicle model recognition
期刊
IF:
6.5
论文数:
2.5W
被引数:
6.5W
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