Mamba-wavelet-based multi-scale modeling method for few-shot fine-grained image classification

Tong Ao; Ren Jie; Meng Zongyang; Lu Lei

doi:10.11959/j.issn.2096-6652.202606

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Mamba-wavelet-based multi-scale modeling method for few-shot fine-grained image classification

Papers and Reports | 更新时间：2026-04-27

- Mamba-wavelet-based multi-scale modeling method for few-shot fine-grained image classification
- Chinese Journal of Intelligent Science and Technology Vol. 8, Issue 1, Pages: 72-82(2026)
- 作者机构：
  
  1.西安工程大学电子信息学院，陕西西安 710600
  2.西安交通大学信息与通信工程学院，陕西西安 710049
- 作者简介：
- 基金信息：
  
  The Shaanxi Province Basic Research Program in Natural Sciences(2025JC-YBMS-765);The Key Project of Shaanxi Provincial Department of Education(23JY029)
- DOI：10.11959/j.issn.2096-6652.202606
  CLC： TP391
- Received：05 December 2025，
  
  Revised：2026-03-16，
  
  Accepted：25 March 2026，
  
  Published：15 March 2026
- 稿件说明：
移动端阅览
仝傲,任劼,孟宗阳等.小样本细粒度图像分类的Mamba-小波多尺度建模方法[J].智能科学与技术学报,2026,08(01):72-82.

Tong Ao,Ren Jie,Meng Zongyang,et al.Mamba-wavelet-based multi-scale modeling method for few-shot fine-grained image classification[J].Chinese Journal of Intelligent Science and Technology,2026,08(01):72-82.
仝傲,任劼,孟宗阳等.小样本细粒度图像分类的Mamba-小波多尺度建模方法[J].智能科学与技术学报,2026,08(01):72-82. DOI： 10.11959/j.issn.2096-6652.202606.

Tong Ao,Ren Jie,Meng Zongyang,et al.Mamba-wavelet-based multi-scale modeling method for few-shot fine-grained image classification[J].Chinese Journal of Intelligent Science and Technology,2026,08(01):72-82. DOI： 10.11959/j.issn.2096-6652.202606.

摘要

小样本细粒度图像分类旨在在有限标注样本条件下识别类别间细微差异，广泛应用于智能识别、生态监测及自动驾驶等领域。现有卷积结构受限于固定感受野和局部建模方式，对多尺度特征的关联描述不足，注意力或频域方法虽提升了细粒度特征的判别性，但在跨尺度依赖建模与特征融合方面仍存在局限。为提升多尺度细粒特征的表达能力，提出了一种小样本细粒度图像分类的Mamba-小波多尺度建模方法，该方法构建了Mamba状态空间建模的多尺度特征关系网络（MSFRNet）。该网络包含两大核心创新模块：小波引导动态Mamba多尺度特征提取（WDMFE）模块与交叉尺度注意力融合（CAF）模块。其中，WDMFE模块通过小波引导的动态自适应Mamba结构强化不同尺度下的频率感知与上下文建模，CAF模块采用通道与空间注意力机制整合多尺度特征以实现跨尺度补充。实验结果在CUB-200-2011、Stanford-Dogs和Stanford-Cars等基准数据集上获得了较高分类准确率，并呈现出稳定的性能提升。结果表明，该网络能够有效增强细粒度特征表达与跨任务泛化能力，并为小样本细粒度识别模型的多尺度建模提供可拓展框架。

Abstract

Fine-grained few-shot image classification aims to recognize subtle inter-class differences under limited annotated samples and has been widely applied in intelligent recognition

ecological monitoring

and autonomous driving. However

existing convolutional architectures are constrained by fixed receptive fields and local modeling schemes

resulting in insufficient characterization of multi-scale feature relationships. Although attention-based or frequency-domain methods have improved the discriminability of fine-grained features

limitations still exist in modeling cross-scale dependencies and feature fusion. To address these issues

a Mamba-wavelet-based multi-scale modeling method for few-shot fine-grained image classification was proposed. Specifically

a multi-scale feature relation network (MSFRNet) based on Mamba state space modeling was constructed. The proposed network consisted of two core modules

namely a wavelet-guided dynamic Mamba multi-scale feature extraction (WDMFE) module and a cross-scale attention fusion (CAF) module. In the WDMFE module

a wavelet-guided dynamic adaptive Mamba structure was introduced to enhance frequency perception and contextual modeling across different scales. In the CAF module

multi-scale features were integrated through channel and spatial attention mechanisms to achieve cross-scale feature complementation. Experimental results on benchmark datasets

including CUB-200-2011

Stanford Dogs

and Stanford Cars

demonstrated that higher classification accuracy was achieved and stable performance improvements were obtained. It is concluded that the proposed network effectively enhances fine-grained feature representation and cross-task generalization ability

and provides a scalable framework for multi-scale modeling in few-shot fine-grained classification.

关键词

Keywords

references

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