一种跨模态行人重识别方法及系统

By constructing a cross-modal semantic hypergraph and generating dynamic semantic regions, extracting multi-granular local features and introducing environment-aware modulation, the problems of modal gap and illumination variation in cross-modal pedestrian re-identification are solved, and highly accurate cross-modal pedestrian matching is achieved.

CN121811455BActive Publication Date: 2026-07-17HUZHOU UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUZHOU UNIVERSITY
Filing Date
2026-03-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing cross-modal pedestrian re-identification methods struggle to achieve accurate matching when faced with challenges such as the modal gap between visible light and infrared images, illumination variations, complex background interference, and the variability of pedestrian postures. In particular, they lack cross-scene generalization capabilities in all-weather monitoring scenarios.

Method used

A cross-modal pedestrian re-identification method is adopted. By constructing a cross-modal semantic hypergraph, combining hypergraph convolution and dynamic semantic region generation, multi-granular local features are extracted, and dynamic weighted metric and environment-aware modulation are introduced to achieve adaptive cross-modal pedestrian matching.

Benefits of technology

It breaks through the limitations of traditional rigid alignment, achieves accurate multi-scale representation of non-rigid appearance, enhances the model's adaptability to different imaging conditions, and improves the accuracy and stability of cross-modal similarity measurement.

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Abstract

本发明公开了一种跨模态行人重识别方法及系统,涉及人工智能技术领域,所述方法包括:构建包含在不同摄像头视角下的可见光与红外图像对的数据集;建模跨模态像素语义关联并自适应生成多粒度判别性区域;通过提取多粒度区域特征并引入动态加权度量与环境感知调制,实现自适应跨模态行人匹配;进行多任务联合优化;训练跨模态行人重识别模型,并用于图库构建与查询检索。该方法能够实现跨模态像素级语义对齐、动态多粒度区域表征、环境自适应特征调制以及细粒度相似性度量,提升跨模态行人重识别的准确性与鲁棒性。
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Citation Information

Patent Citations

  • Cross-modal pedestrian re-identification method based on multi-granularity feature utilization

    CN114998928A

  • Video pedestrian re-identification method based on attention space-time diagram network

    CN116797966A