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Edge-Guided Feature Dense Fusion Network for Remote Sensing Image Change Detection

Hejun Luo,Jia Liu,Fang Liu,Wenhua Zhang,Jingxiang Yang,Liang Xiao

Published 2023 in IEEE International Geoscience and Remote Sensing Symposium

ABSTRACT

Remote sensing change detection (CD) is of great importance to Earth observation. Recently, Deep Learning (DL) has been increasingly used to extract useful features and make accurate decisions in a large number of remote sensing images, due to its ability to automatically learn semantic features. However, insufficient fusion of bitemporal images and the lack of prior knowledge of edge structures in current DL methods will result in inaccurate CD results, especially for building boundaries. To alleviate these problems, an edge-guided feature-densely-fused network (EGFDFN) is proposed in this paper. In contrast to conventional Siamese networks, EGFDFN extracts bitemporal features from an extra dual decoder instead of a dual encoder to obtain more accurate change features. In addition, an attention and dense fusion module (ADFM) and an edge guidance module (EGM) are used to enhance features and make full use of edge information. Experimental results demonstrate that the proposed method outperforms on LEVIR-CD dataset among other representative methods.

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