Esmii-Net: An Edge-Synergy and Multidimensional Information Interaction Network for Remote Sensing Change Detection

Abstract

In recent advancements, deep learning-based methods for change detection have demonstrated rapid capabilities to identify alterations across extensive regions, underscoring significant research and application potential in remote sensing change detection. Nonetheless, these methods currently encounter limitations in feature extraction, often leading to blurred edges and challenges in identifying small-scale changes. To overcome these challenges, we introduce the Edge-Synergy and Multidimensional Information Interaction Network (ESMII-Net) specifically designed for remote sensing change detection. This comprehensive model integrates edge-awareness with change detection tasks, leveraging edge detection to augment change detection performance. Within ESMII-Net, we have developed a Directional Edge-Highlighting Module (DEHM) to refine edge features, a Multidimensional Information Interaction Fusion Module (MIIFM) for efficient extraction of pertinent change features, and an Edge-Synergy Module (ESM) to enhance task interactivity. Furthermore, during the loss function formulation, we have incorporated a Small Object Enhancement Factor (SOEF) to prioritize small object detection. An edge-awareness map is also utilized within the model to accurately delineate change edges and assess their influence on adjacent changed pixels. The efficacy of our model and its innovative components has been validated through experimental results on two public datasets, showcasing improved capabilities in detecting edges and small objects.

Keywords: change detection, remote sensing, Edge-Synergy, Multidimensional Information Interaction