一种基于非线性风格插值的双时相语义变化检测方法

The dual-temporal semantic change detection method using nonlinear style interpolation solves the problems of temporal information sparsity, style-structure coupling, and pseudo-change noise interference in existing technologies, and achieves high-precision detection and robustness improvement of the continuous evolution process of the Earth's surface.

CN122200658BActive Publication Date: 2026-07-17CHINA UNIV OF PETROLEUM (EAST CHINA)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (EAST CHINA)
Filing Date
2026-05-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing semantic change detection methods have shortcomings in terms of temporal information sparsity, style and structure coupling, and spurious change noise interference. They cannot effectively model the continuous evolution process of the land surface, resulting in insufficient detection accuracy and robustness.

Method used

A bi-temporal semantic change detection method based on nonlinear style interpolation is adopted. Through latent style statistical modeling and decoupling, nonlinear time mapping, bidirectional pseudo-temporal sequence synthesis, temporal offset module and temporal gating fusion unit, the bi-temporal phase is reconstructed to be a relatively continuous pseudo-temporal evolution model, explicitly decoupling radiation inconsistency, and enhancing the perception of temporal context information and noise suppression capabilities.

Benefits of technology

It significantly improves the accuracy and robustness of change detection, effectively distinguishes between real and false changes, reduces false alarm and false negative rates, and adapts to complex environmental changes.

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Abstract

本发明属于遥感图像处理技术领域,公开了一种基于非线性风格插值的双时相语义变化检测方法。本发明将离散的双时相变化检测任务重构为连续的伪时间演化建模任务,通过构建高维潜空间的非线性连续化映射,恢复了缺失的时间上下文信息。引入可学习的非线性时间映射函数,自适应模拟真实世界中地物演变的非恒定速率,使伪时间序列的采样分布更符合物理规律。通过统计特征建模实现风格代码与内容特征的显式分离,并采用前向与后向双向合成机制构建连续演化路径,解决了辐射不一致性带来的风格‑结构耦合问题。最后将伪时序特征张量作为时序建模输入进行时序建模与噪声滤波,增强真实变化响应并抑制伪变化干扰,提升语义变化检测的精度与鲁棒性。
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