Few-shot Fine-grained Image Classification via Multi-Frequency Neighborhood and Double-cross Modulation
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Abstract (arXiv)
Traditional fine-grained image classification typically relies on large-scale training samples with annotated ground-truth. However, some sub-categories have few available samples in real-world applications, and current few-shot models still have difficulty in distinguishing subtle differences among fine-grained categories. To solve this challenge, we propose a novel few-shot fine-grained image classification network (FicNet) using multi-frequency neighborhood (MFN) and double-cross modulation (DCM). MFN focuses on both spatial domain and frequency domain to capture multi-frequency structural representations, which reduces the influence of appearance and background changes to the intra-class distance. DCM consists of bi-crisscross component and double 3D cross-attention component. It modulates the representations by considering global context information and inter-class relationship respectively, which enables the support and query samples respond to the same parts and accurately identify the subtle inter-class differences. The comprehensive experiments on three fine-grained benchmark datasets for two few-shot tasks verify that FicNet has excellent performance compared to the state-of-the-art methods. Especially, the experiments on two datasets, "Caltech-UCSD Birds" and "Stanford Cars", can obtain classification accuracy 93.17% and 95.36%, respectively. They are even higher than that the general fine-grained image classification methods can achieve.
Key facts. Cited by 4 papers in the map (data through 14 Oct 2026). Builds on 44 of its 72 references that are in the map. First posted on arXiv 18 Jul 2022.
Builds on
44 of 72 references.
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Built on by
Citing papers per year: 2024: 1; 2025: 3.
4 papers.
- 2024Harnessing the Power of Local Representations for Few-Shot Classificationcited by 1
- 2025FiGKD: Fine-Grained Knowledge Distillation via High-Frequency Detail Transfercited by 0
- 2025FreqGRL: Suppressing Low-Frequency Bias and Mining High-Frequency Knowledge for Cross-Domain Few-Shot Learningcited by 0
- 2025CausalFSFG: Rethinking Few-Shot Fine-Grained Visual Categorization from Causal Perspectivecited by 0
- 2025CausalFSFG: Rethinking Few-Shot Fine-Grained Visual Categorization from Causal Perspective25 Dec 2025
- 2025FreqGRL: Suppressing Low-Frequency Bias and Mining High-Frequency Knowledge for Cross-Domain Few-Shot Learning10 Nov 2025
- 2025FiGKD: Fine-Grained Knowledge Distillation via High-Frequency Detail Transfer17 May 2025
- 2024Harnessing the Power of Local Representations for Few-Shot Classification2 Jul 2024