TaCo: Capturing Spatio-Temporal Semantic Consistency in Remote Sensing Change Detection

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Main Authors: Guo, Han, Liu, Chenyang, Zhang, Haotian, Chen, Bowen, Zou, Zhengxia, Shi, Zhenwei
Format: Preprint
Published: 2025
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author Guo, Han
Liu, Chenyang
Zhang, Haotian
Chen, Bowen
Zou, Zhengxia
Shi, Zhenwei
author_facet Guo, Han
Liu, Chenyang
Zhang, Haotian
Chen, Bowen
Zou, Zhengxia
Shi, Zhenwei
contents Remote sensing change detection (RSCD) aims to identify surface changes across bi-temporal satellite images. Most previous methods rely solely on mask supervision, which effectively guides spatial localization but provides limited constraints on the temporal semantic transitions. Consequently, they often produce spatially coherent predictions while still suffering from unresolved semantic inconsistencies. To address this limitation, we propose TaCo, a spatio-temporal semantic consistent network, which enriches the existing mask-supervised framework with a spatio-temporal semantic joint constraint. TaCo conceptualizes change as a semantic transition between bi-temporal states, in which one temporal feature representation can be derived from the other via dedicated transition features. To realize this, we introduce a Text-guided Transition Generator that integrates textual semantics with bi-temporal visual features to construct the cross-temporal transition features. In addition, we propose a spatio-temporal semantic joint constraint consisting of bi-temporal reconstruct constraints and a transition constraint: the former enforces alignment between reconstructed and original features, while the latter enhances discrimination for changes. This design can yield substantial performance gains without introducing any additional computational overhead during inference. Extensive experiments on six public datasets, spanning both binary and semantic change detection tasks, demonstrate that TaCo consistently achieves SOTA performance.
format Preprint
id arxiv_https___arxiv_org_abs_2511_20306
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publishDate 2025
record_format arxiv
spellingShingle TaCo: Capturing Spatio-Temporal Semantic Consistency in Remote Sensing Change Detection
Guo, Han
Liu, Chenyang
Zhang, Haotian
Chen, Bowen
Zou, Zhengxia
Shi, Zhenwei
Computer Vision and Pattern Recognition
Remote sensing change detection (RSCD) aims to identify surface changes across bi-temporal satellite images. Most previous methods rely solely on mask supervision, which effectively guides spatial localization but provides limited constraints on the temporal semantic transitions. Consequently, they often produce spatially coherent predictions while still suffering from unresolved semantic inconsistencies. To address this limitation, we propose TaCo, a spatio-temporal semantic consistent network, which enriches the existing mask-supervised framework with a spatio-temporal semantic joint constraint. TaCo conceptualizes change as a semantic transition between bi-temporal states, in which one temporal feature representation can be derived from the other via dedicated transition features. To realize this, we introduce a Text-guided Transition Generator that integrates textual semantics with bi-temporal visual features to construct the cross-temporal transition features. In addition, we propose a spatio-temporal semantic joint constraint consisting of bi-temporal reconstruct constraints and a transition constraint: the former enforces alignment between reconstructed and original features, while the latter enhances discrimination for changes. This design can yield substantial performance gains without introducing any additional computational overhead during inference. Extensive experiments on six public datasets, spanning both binary and semantic change detection tasks, demonstrate that TaCo consistently achieves SOTA performance.
title TaCo: Capturing Spatio-Temporal Semantic Consistency in Remote Sensing Change Detection
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2511.20306