arXiv:2505.15322cs.CV2025-05被引 1

提出新模型提升遥感图像变化检测精度,兼顾显著与微弱变化。

CEBSNet: Change-Excited and Background-Suppressed Network with Temporal Dependency Modeling for Bitemporal Change Detection

  • 通过时序依赖建模减少特征差异和噪声
  • 同时捕捉显著与细微变化,提升检测完整性
  • 适合遥感、街景等长时距图像变化分析

变化检测是遥感与计算机视觉中的关键任务,旨在识别同一地理区域不同时间拍摄的图像对之间的像素级差异。该任务面临光照变化、季节影响、背景干扰及拍摄角度差异等挑战,尤其在长时间跨度下更为严峻。现有方法常忽略时序依赖性,过度关注显著变化而忽视细微但重要的变化。为此,本文提出CEBSNet:一种面向双时相变化检测的变更激发与背景抑制网络,结合时序依赖建模。特征提取阶段引入轻量级通道交换模块(CSM)以建模时序依赖,降低差异与噪声;设计特征激发与抑制模块(FESM),有效捕捉显著与细微变化,保持变化区域完整性;同时提出金字塔感知空间-通道注意力模块(PASCA),增强多尺度变化区域检测能力并聚焦关键区域。在三个常见街景数据集和两个遥感数据集上进行大量实验,结果表明本方法达到当前最优性能。

原文摘要 · Abstract (English)

Change detection, a critical task in remote sensing and computer vision, aims to identify pixel-level differences between image pairs captured at the same geographic area but different times. It faces numerous challenges such as illumination variation, seasonal changes, background interference, and shooting angles, especially with a large time gap between images. While current methods have advanced, they often overlook temporal dependencies and overemphasize prominent changes while ignoring subtle but equally important changes. To address these limitations, we introduce \textbf{CEBSNet}, a novel change-excited and background-suppressed network with temporal dependency modeling for change detection. During the feature extraction, we utilize a simple Channel Swap Module (CSM) to model temporal dependency, reducing differences and noise. The Feature Excitation and Suppression Module (FESM) is developed to capture both obvious and subtle changes, maintaining the integrity of change regions. Additionally, we design a Pyramid-Aware Spatial-Channel Attention module (PASCA) to enhance the ability to detect change regions at different sizes and focus on critical regions. We conduct extensive experiments on three common street view datasets and two remote sensing datasets, and our method achieves the state-of-the-art performance.

变化检测遥感图像时序建模多尺度注意力

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