多尺度特征对比学习的红外目标跨频段图像分割方法

By employing an end-to-end training framework based on multi-scale feature contrastive learning, combined with target-aware contrastive learning and multi-level feature fusion, the problems of inconsistent feature representation and weak model generalization ability in cross-band segmentation of infrared images are solved, thereby improving the robustness of infrared target segmentation and the accuracy of small target segmentation, especially with excellent performance under conditions of few samples.

CN121811042BActive Publication Date: 2026-07-17NORTHWESTERN POLYTECHNICAL UNIV
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHWESTERN POLYTECHNICAL UNIV
Filing Date
2025-12-31
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing deep learning methods suffer from inconsistent feature representations, weak model generalization ability, and low accuracy in segmenting small targets and edges in infrared image cross-band transfer and segmentation tasks. They perform poorly, especially under conditions with few samples, and the contrastive learning framework fails to effectively utilize the physical correlation and repulsion of infrared cross-band samples.

Method used

An end-to-end training framework for multi-scale feature contrastive learning is constructed. Through target-aware contrastive learning and multi-level feature fusion, the discriminative feature extraction of infrared targets is enhanced in a self-supervised manner. Semantic information is integrated by utilizing a multi-scale fusion mechanism. Combined with few-shot training and data augmentation techniques, the segmentation performance of the model in cross-band scenarios is improved.

Benefits of technology

It significantly improves the robustness and generalization ability of infrared target segmentation, improves the segmentation accuracy of small targets and complex boundaries, and maintains superior segmentation performance, especially in extremely low-sample scenarios.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121811042B_ABST
    Figure CN121811042B_ABST
Patent Text Reader

Abstract

本发明提出一种多尺度特征对比学习的红外目标跨频段图像分割方法,首先构建少样本训练场景并进行数据增强;设计一种端到端分割模型,该模型集成多尺度主干网络、目标感知采样模块、目标感知对比学习模块及多尺度特征融合机制;通过目标感知采样策略为对比学习提供均衡的目标与背景图像块;利用改进的对比损失函数引导模型聚焦于学习目标区域的判别性特征;通过局部与全局融合策略充分整合主干网络特征与对比学习特征;最终采用联合损失函数同步优化分割任务与自监督特征学习任务。实验表明,本发明方法在多个红外波段及少样本条件下,分割精度显著优于主流方法,有效提升了模型的特征提取能力、少样本适应性与跨频段泛化性能。
Need to check novelty before this filing date? Find Prior Art