An image feature matching method based on high-order graph global consistency

By constructing a high-order graph structure and using an information entropy adaptive filtering method, the feature matching problem of remote sensing images in scenarios with high outliers and complex geometric distortions was solved, achieving image registration with high robustness and high adaptability.

CN122416074APending Publication Date: 2026-07-17XIAMEN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAMEN UNIV OF TECH
Filing Date
2026-05-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing image feature matching methods perform poorly in scenarios with high outlier rates and complex geometric distortions, making it difficult to accurately match remote sensing images, especially limiting the cross-scene generalization ability of remote sensing images.

Method used

The image feature matching method based on high-order graph global consistency constructs an initial graph structure, generates graph structures of different orders and fuses them, uses information entropy to adaptively filter out noisy connections, guides geometric transformation model estimation, generates a high-confidence global representation graph, and selects the correct matching set.

Benefits of technology

Achieving robust feature matching in scenarios with high outlier counts and complex geometric transformations improves the accuracy and adaptability of remote sensing image registration, reduces reliance on large-scale labeled data, and adapts to different sensors and imaging conditions.

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Abstract

本发明提供一种基于高阶图全局一致性的图像特征匹配方法,属于计算机视觉与图像处理技术领域,获取待匹配图像对的初始特征匹配集合,构建以匹配对为节点、以兼容性连接为边的初始图结构;基于初始图结构,生成至少两个不同阶次的图结构,并将不同阶次的图结构进行融合,得到融合图结构;对融合图结构执行基于信息熵的自适应过滤:将融合图结构中各连接的亲和力值转化为先验概率分布,基于先验概率分布计算全局信息熵,将各连接的自身信息量与全局信息熵进行比较,保留自身信息量大于全局信息熵的连接,得到高置信度全局表示图;基于表征的匹配对之间的结构关系,引导对初始特征匹配集合的采样与几何变换模型估计,以筛选出正确匹配集合。
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