Papers › LightCDNet: Lightweight Change Detection Network Based on VHR Images

LightCDNet: Lightweight Change Detection Network Based on VHR Images

11 Aug 2023IEEE Geoscience and Remote Sensing Letters 2023 8archive 2025-07-28

Yuanjun Xing, Jiawei Jiang, Jun Xiang, Enping Yan, Yabin Song, Dengkui Mo

Lightweight change detection models are essential for industrial applications and edge devices. Reducing the model size while maintaining high accuracy is a key challenge in developing lightweight change detection models. However, many existing methods oversimplify the model architecture, leading to a loss of information and reduced performance. Therefore, developing a lightweight model that can effectively preserve the input information is a challenging problem. To address this challenge, we propose LightCDNet, a novel lightweight change detection model that effectively preserves the input information. LightCDNet consists of an early fusion backbone network and a pyramid decoder for end-to-end change detection. The core component of LightCDNet is the Deep Supervised Fusion Module (DSFM), which guides the early fusion of primary features to improve performance. We evaluated LightCDNet on the LEVIR-CD dataset and found that it achieved comparable or better performance than state-of-the-art models while being 10–117 times smaller in size.

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Tasks

Building change detection for remote sensing imagesChange DetectionDecoder

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Building change detection for remote sensing images LEVIR-CD LightCDNet-large F1 91.43 #14 of 37 Archive leaderboard report
Building change detection for remote sensing images LEVIR-CD LightCDNet-large IoU 84.21 #14 of 37 Archive leaderboard report
Building change detection for remote sensing images LEVIR-CD LightCDNet-large Params(M) 2.82 #14 of 37 Archive leaderboard report
Building change detection for remote sensing images LEVIR-CD LightCDNet-base F1 91.27 #15 of 37 Archive leaderboard report
Building change detection for remote sensing images LEVIR-CD LightCDNet-base IoU 83.94 #15 of 37 Archive leaderboard report
Building change detection for remote sensing images LEVIR-CD LightCDNet-base Params(M) 1.32 #15 of 37 Archive leaderboard report
Building change detection for remote sensing images LEVIR-CD LightCDNet-small F1 90.57 #24 of 37 Archive leaderboard report
Building change detection for remote sensing images LEVIR-CD LightCDNet-small IoU 82.77 #24 of 37 Archive leaderboard report
Building change detection for remote sensing images LEVIR-CD LightCDNet-small Params(M) 0.35 #24 of 37 Archive leaderboard report

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