一种基于局部特征融合的图像多模态相似度识别方法

By constructing a multimodal similarity network, dynamically adjusting attention weights, and training model parameters step by step, the problems of feature fusion and modal differences in image similarity learning are solved, achieving more accurate and flexible image similarity recognition.

CN118941901BActive Publication Date: 2026-07-17HEFEI UNIV OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI UNIV OF TECH
Filing Date
2024-07-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies struggle to effectively integrate different feature information in image similarity learning, and the differences and scarcity of data across different modalities limit the accuracy and scope of similarity calculation.

Method used

A multimodal image similarity recognition method based on local feature fusion is adopted. By constructing a multimodal similarity network, the attention weight is dynamically adjusted using global feature modules, regional feature modules, fusion feature modules, clustering modules, attention modules, and similarity modules. The model parameters are trained step by step, and the block information and overall vision of the image are fused to improve the accuracy of similarity recognition.

Benefits of technology

It improves the accuracy and flexibility of image similarity recognition, can adapt to different scenario requirements, dynamically adjusts attention weights, adapts to complex image similarity calculations, and enhances the model's expressive power and interpretability.

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Abstract

本发明公开了一种基于局部特征融合的图像多模态相似度识别方法,包括:1利用卷积神经网络提取输入图像的整体特征;2将输入的图片划分为大小相同的区块,使用自动编码器提取每个区块的特征,获得局部特征;3将图像整体特征和局部特征进行融合,形成综合特征;4依据综合特征形成多个关系向量,构建基于局部特征融合的多模态相似度网络;5构建损失函数,并进行训练以获得最优模态相似度模型;6利用训练好的模型识别输入图像对之间的相似度。本发明能从整体和局部的角度衡量输入图像对的相似性,在图像相似度识别任务中展现优异,并且具有一定的可解释性。
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