L-UNet: An LSTM Network for Remote Sensing Image Change Detection

Fuente: arXiv
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Main Authors: Sun, Shuting, Mu, Lin, Wang, Lizhe, Liu, Peng
Format: Preprint
Published: 2026
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author Sun, Shuting
Mu, Lin
Wang, Lizhe
Liu, Peng
author_facet Sun, Shuting
Mu, Lin
Wang, Lizhe
Liu, Peng
contents Change detection of high-resolution remote sensing images is an important task in earth observation and was extensively investigated. Recently, deep learning has shown to be very successful in plenty of remote sensing tasks. The current deep learning-based change detection method is mainly based on conventional long short-term memory (Conv-LSTM), which does not have spatial characteristics. Since change detection is a process with both spatiality and temporality, it is necessary to propose an end-to-end spatiotemporal network. To achieve this, Conv-LSTM, an extension of the Conv-LSTM structure, is introduced. Since it shares similar spatial characteristics with the convolutional layer, L-UNet, which substitutes partial convolution layers of UNet-to-Conv-LSTM and Atrous L-UNet (AL-UNet), which further using Atrous structure to multiscale spatial information is proposed. Experiments on two data sets are conducted and the proposed methods show the advantages both in quantity and quality when compared with some other methods.
format Preprint
id arxiv_https___arxiv_org_abs_2603_22842
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle L-UNet: An LSTM Network for Remote Sensing Image Change Detection
Sun, Shuting
Mu, Lin
Wang, Lizhe
Liu, Peng
Image and Video Processing
Computer Vision and Pattern Recognition
Change detection of high-resolution remote sensing images is an important task in earth observation and was extensively investigated. Recently, deep learning has shown to be very successful in plenty of remote sensing tasks. The current deep learning-based change detection method is mainly based on conventional long short-term memory (Conv-LSTM), which does not have spatial characteristics. Since change detection is a process with both spatiality and temporality, it is necessary to propose an end-to-end spatiotemporal network. To achieve this, Conv-LSTM, an extension of the Conv-LSTM structure, is introduced. Since it shares similar spatial characteristics with the convolutional layer, L-UNet, which substitutes partial convolution layers of UNet-to-Conv-LSTM and Atrous L-UNet (AL-UNet), which further using Atrous structure to multiscale spatial information is proposed. Experiments on two data sets are conducted and the proposed methods show the advantages both in quantity and quality when compared with some other methods.
title L-UNet: An LSTM Network for Remote Sensing Image Change Detection
topic Image and Video Processing
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2603.22842