Research

My research uses machine learning and computer vision for Earth observation. The work groups into four directions: interpreting multi-sensor EO data, designing EO-specialised architectures, training under limited annotation, and extending EO capabilities with foundation models. The interest started during a year as a trainee at the UN Satellite Centre (UNOSAT) and now spans disaster response, urban planning, land-cover mapping, and environmental monitoring.

SARU: A Shadow-Aware and Removal Unified Framework for remote sensing images with new benchmarks

Z.-Y. Bo, W. Lu, H. Chen, S.-B. Chen, B. Luo

ISPRS Journal of Photogrammetry and Remote Sensing, 2026

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MM-OVSeg: Multimodal optical-SAR fusion for open-vocabulary segmentation in remote sensing

Y. Wei, A. Xiao, H. Chen, J. Xia, N. Yokoya

IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2026

datafoundation
Paper

ChangeBridge: Spatiotemporal image generation with multimodal controls for remote sensing

Z. Zhao, C. Wu, X. Cao, D. Wang, H. Chen, D. Tang, L. Zhang, Z. Zheng

IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2026

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GeoMMBench and GeoMMAgent: Toward expert-level multimodal intelligence in geoscience and remote sensing

A. Xiao, S. Cheng, Y. Xu, Y. Ren, H. Chen, N. Yokoya

IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2026

Highlightfoundation
Paper Project

Multimodal remote sensing change detection: An image matching perspective

H. Chen, C. Lan, J. Song, D. Ibañez, J. Xia, K. Schindler, N. Yokoya

ISPRS Journal of Photogrammetry and Remote Sensing, 2026

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Enhancing monocular height estimation via sparse LiDAR-guided correction

J. Song, H. Chen, N. Yokoya

ISPRS Journal of Photogrammetry and Remote Sensing, 2026

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CrossEarth: Geospatial vision foundation model for domain-generalizable remote sensing semantic segmentation

Z. Gong, Z. Wei, D. Wang, X. Ma, H. Chen, Y. Jia, Y. Deng, Z. Ji, X. Zhu, N. Yokoya, J. Zhang, B. Du, L. Zhang

IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI), 2026

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CityVLM: Towards sustainable urban development via multi-view coordinated vision-language model

J. Wang, W. Xuan, H. Qi, Z. Chen, H. Chen, Z. Zheng, J. Xia, Y. Zhong, N. Yokoya

ISPRS Journal of Photogrammetry and Remote Sensing, 2026

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DreamCD: A change-label-free framework for change detection via a weakly conditional semantic diffusion model in optical VHR imagery

K. Tang, Z. Zheng, H. Chen, X. Chen, J. Chen

International Journal of Applied Earth Observation and Geoinformation (JAG), 2026

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SARLANG-1M: A benchmark for vision-language modeling in SAR image understanding

Y. Wei, A. Xiao, Y. Ren, Y. Zhu, H. Chen, J. Xia, N. Yokoya

IEEE Transactions on Geoscience and Remote Sensing (TGRS), 2026

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Paper Dataset

Multi-label classification for multi-temporal, multi-spatial coral reef condition monitoring using vision foundation model with adapter learning

X. Shao*, H. Chen*, F. Zhao, K. Magson, J. Chen, P. Li, J. Wang, J. Sasaki

Marine Pollution Bulletin, 2026

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BRIGHT: A globally distributed multimodal building damage assessment dataset with very-high-resolution for all-weather disaster response

H. Chen, J. Song, O. Dietrich, C. W. Xuan, J. Wang, X. Shao, Y. Wei, J. Xia, C. Lan, K. Schindler, N. Yokoya

Earth System Science Data (ESSD), 2025

ESI Hot PaperESI Highly CitedDFC 2025datalabels
Paper Code Dataset Challenge

OpenEarthMap-SAR: A benchmark synthetic aperture radar dataset for global high-resolution land cover mapping

J. Xia, H. Chen, C. Broni-Bediako, Y. Wei, J. Song, N. Yokoya

IEEE Geoscience and Remote Sensing Magazine (GRSM), 2025

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Paper Code Dataset

Report on the 2025 IEEE GRSS Data Fusion Contest: All-weather land cover and building damage mapping

C. Persello, S. Prasad, U. Verma, G. Vivone, H. Chen, J. Xia, J. Song, C. Broni-Bediako, O. Dietrich, K. Schindler, N. Yokoya

IEEE Geoscience and Remote Sensing Magazine (GRSM), 2025

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Advancing weakly-supervised change detection in satellite images via adversarial class prompting

Z. Zhao, C. Wu, D. Wang, H. Chen, C. Chen, Z. Zheng, B. Du, L. Zhang

IEEE Transactions on Image Processing (TIP), 2025

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CGSL: Commonality graph structure learning for unsupervised multimodal change detection

J. Xu, T. Liu, T. Lei, H. Chen, N. Yokoya, Z. Lv, M. Gong

ISPRS Journal of Photogrammetry and Remote Sensing, 2025

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2025 IEEE GRSS Data Fusion Contest: All-weather land cover and building damage mapping

C. Persello, S. Prasad, U. Verma, G. Vivone, H. Chen, J. Xia, J. Song, C. Broni-Bediako, O. Dietrich, K. Schindler, N. Yokoya

IEEE Geoscience and Remote Sensing Magazine (GRSM), 2025

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A survey of sample-efficient deep learning for change detection in remote sensing: Tasks, strategies, and challenges

L. Ding, D. Hong, M. Zhao, H. Chen, C. Li, J. Deng, N. Yokoya, L. Bruzzone, J. Chanussot

IEEE Geoscience and Remote Sensing Magazine (GRSM), 2025

ESI Highly Citedlabels
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Plug-and-play DiSep: Separating dense instances for scene-to-pixel weakly-supervised change detection in high-resolution remote sensing images

Z. Zhao, C. Wu, L. Ru, D. Wang, H. Chen, C. Chen

ISPRS Journal of Photogrammetry and Remote Sensing, 2025

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HyperSIGMA: Hyperspectral intelligence comprehension foundation model

D. Wang, M. Hu, Y. Jin, Y. Miao, J. Yang, Y. Xu, X. Qin, J. Ma, L. Sun, C. Li, C. Fu, H. Chen, C. Han, N. Yokoya, J. Zhang, M. Xu, L. Liu, L. Zhang, C. Wu, B. Du, D. Tao, L. Zhang

IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI), 2025

ESI Hot PaperESI Highly Citedarchitecturefoundation
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DisasterM3: A remote sensing vision-language dataset for disaster damage assessment and response

J. Wang, W. Xuan, H. Qi, Z. Liu, K. Liu, Y. Wu, H. Chen, J. Song, J. Xia, Z. Zheng, N. Yokoya

Annual Conference on Neural Information Processing Systems (NeurIPS), 2025

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Paper Code Dataset

ChangeMamba: Remote sensing change detection with spatiotemporal state space model

H. Chen*, J. Song*, C. Han, J. Xia, N. Yokoya

IEEE Transactions on Geoscience and Remote Sensing (TGRS), 2024

ESI Hot PaperESI Highly Citedarchitecture
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ObjFormer: Learning land-cover changes from paired OSM data and optical high-resolution imagery via object-guided transformer

H. Chen, C. Lan, J. Song, C. Broni-Bediako, J. Xia, N. Yokoya

IEEE Transactions on Geoscience and Remote Sensing (TGRS), 2024

ESI Highly Citeddataarchitecture
Paper Code Dataset

UNet-like remote sensing change detection: A review of current models and research directions

C. Wu, L. Zhang, B. Du, H. Chen, J. Wang, H. Zhong

IEEE Geoscience and Remote Sensing Magazine (GRSM), 2024

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C2F-SemiCD: A coarse-to-fine semi-supervised change detection method based on consistency regularization in high-resolution remote sensing images

C. Han, C. Wu, M. Hu, J. Li, H. Chen

IEEE Transactions on Geoscience and Remote Sensing (TGRS), 2024

ESI Highly Citedlabels
Paper

Generalized few-shot semantic segmentation in remote sensing: Challenge and benchmark

C. Broni-Bediako, J. Xia, J. Song, H. Chen, N. Yokoya

IEEE Geoscience and Remote Sensing Letters (GRSL), 2024

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Deep learning for multilabel classification of coral reef conditions in the Indo-Pacific using underwater photo transect method

X. Shao, H. Chen, K. Magson, J. Wang, J. Song, J. Chen, J. Sasaki

Aquatic Conservation: Marine and Freshwater Ecosystems, 2024

Front Coverarchitecture
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SynRS3D: A synthetic dataset for global 3D semantic understanding from monocular remote sensing imagery

J. Song, H. Chen, W. Xuan, J. Xia, N. Yokoya

Annual Conference on Neural Information Processing Systems (NeurIPS), 2024

Spotlightarchitecturelabels
Paper Code Dataset

Change detection between optical remote sensing imagery and map data via Segment Anything Model (SAM)

H. Chen, J. Song, N. Yokoya

IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2024

Oraldatalabels
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OpenEarthMap benchmark suite and its applications

N. Yokoya, J. Xia, J. Song, C. Broni-Bediako, H. Chen

IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2024

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SyntheWorld: A large-scale synthetic dataset for land cover mapping and building change detection

J. Song, H. Chen, N. Yokoya

IEEE/CVF Winter Conference on Applications of Computer Vision (WACV), 2024

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Paper Dataset

Exchange means change: An unsupervised single-temporal change detection framework based on intra- and inter-image patch exchange

H. Chen, J. Song, C. Wu, B. Du, N. Yokoya

ISPRS Journal of Photogrammetry and Remote Sensing, 2023

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Fourier domain structural relationship analysis for unsupervised multimodal change detection

H. Chen, M. Chini, N. Yokoya

ISPRS Journal of Photogrammetry and Remote Sensing, 2023

ESI Highly Citeddatalabels
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Change Guiding Network: Incorporating change prior to guide change detection in remote sensing imagery

C. Han, C. Wu, H. Guo, M. Hu, J. Li, H. Chen

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing (JSTARS), 2023

ESI Highly Citedarchitecture
Paper

HANet: A hierarchical attention network for change detection with bitemporal very-high-resolution remote sensing images

C. Han, C. Wu, H. Guo, M. Hu, H. Chen

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing (JSTARS), 2023

ESI Highly Citedarchitecture
Paper

Unsupervised multimodal change detection based on structural relationship graph representational learning

H. Chen, N. Yokoya, C. Wu, B. Du

IEEE Transactions on Geoscience and Remote Sensing (TGRS), 2022

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Unsupervised change detection in multitemporal VHR images based on deep kernel PCA convolutional mapping network

C. Wu, H. Chen, B. Du, L. Zhang

IEEE Transactions on Cybernetics (TCYB), 2022

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Dual-tasks Siamese transformer framework for building damage assessment

H. Chen, E. Nemni, S. Vallecorsa, X. Li, C. Wu, L. Bromley

IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2022

Oralarchitecture
Paper

An investigation of traffic density changes inside Wuhan during the COVID-19 epidemic with GF-2 time-series images

C. Wu, Y. Guo, H. Guo, J. Yuan, L. Ru, H. Chen, B. Du, L. Zhang

International Journal of Applied Earth Observation and Geoinformation (JAG), 2021

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Change detection in multisource VHR images via deep Siamese convolutional multiple-layers recurrent neural network

H. Chen, C. Wu, B. Du, L. Zhang, L. Wang

IEEE Transactions on Geoscience and Remote Sensing (TGRS), 2020

ESI Highly Citeddataarchitecture
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Deep Siamese multi-scale convolutional network for change detection in multi-temporal VHR images

H. Chen, C. Wu, B. Du, L. Zhang

International Workshop on the Analysis of Multitemporal Remote Sensing Images (MultiTemp), 2019

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For the most current list with citation counts, see my Google Scholar profile.