Chang Xu
ECEO lab, EPFL
Contact: chang.xu@epfl.ch
Github: Chasel-Tsui
Google Scholar: Chang Xu
I'm currently a Phd student (2024-) of the ECEO lab at EPFL, supervised by Prof. Devis Tuia. Currently, my research focuses on super-resolving and understanding extreme climate events (e.g., heatwaves, drought, and wildfires) with deep learning. Prior to that, I obtained my Bacholar's and Master's degrees both in Electronic Information School, Wuhan University. I was honored to be supervised by Prof. Wen Yang, who guided me onto the journey of scientific research and helped me harvest a bunch of research experience and outcomes on object detection and localization, especially the tiny object detection series.
Recent News
2025
- 2025-06 Our work on Multi-Sensor Remote Sensing Foundation Model is accepted by ICCV 2025, check the project page SMARTIES for codes and models!
- 2025-05 Our work on Open World Event-based Object Detection is accepted by IEEE TPAMI.
- 2025-04 Our paper on Minimizing Sample Redundancy for Label-efficient Aerial Object Detection is accepted by IEEE TGRS.
- 2025-02 Our paper on Semi-supervised Small Object Detection is accepted by ISPRS JPRS.
2024
- 2024-07 One collaborative paper on Cross-view Geo-localization is accepted by IEEE TGRS.
- 2024-07 The work on Robust Cross-view Geo-localization is accepted by ECCV 2024.
- 2024-03 Two works on Aerial Object Tracking are accepted by IGARSS 2024.
- 2024-03 Our work on Object Tracking with Distraction is accepted by ISPRS JPRS.
2023
- 2023-11 Our work on Aerial Object Tracking is accepted by IEEE TGRS.
- 2023-08 Our work on Drone-based RGBT Person Detection is accepted by by ISPRS JPRS.
- 2023-05 I got the best presentation award from ICDIP 2023.
- 2023-05 I got the travel award from CVPR2023, but my visa was rejected.
- 2023-04 I will go to EPFL for a summer internship!
- 2023-04 One collaborative work on Fast-moving Event-based Object Detection is accepted by IEEE TIM.
- 2023-03 The work on Oriented Tiny Object Detection is accepted by CVPR 2023.
2022
- 2022-07 The work on Generic Tiny Object Detection is accepted by ECCV 2022.
- 2022-06 The work on Tiny Object Detection Dataset, Benchmark and Method is accepted by ISPRS JPRS.
2021
- 2021-04 The work on Tiny Object Detection in Aerial Imagery is accepted by EarthVision 2021 (CVPR).
Educations
- Phd Student, 2024-
EPFL, Switzerland - Exchange Master Student, 2023
EPFL, Switzerland - M.Sc in Information and Communication Engineering, 2021-2024
Wuhan University, China - Winter School, 2020
University of Oxford, the UK - B.Sc in Electronic Information Engineering, 2017-2021
Wuhan University, China
Selected Publications
(* Equal Contribution, # Corresponding Author)
Tiny Object Detection |
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Oriented Tiny Object Detection: A Dataset, Benchmark, and Dynamic Unbiased Learning. [Paper] [Code] Chang Xu, Ruixiang Zhang, Wen Yang#, Haoran Zhu, Fang Xu, Jian Ding, Gui-song Xia. arxiv, 2024
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Dynamic Coarse-to-Fine Learning for Oriented Tiny Object Detection. [Paper] [Code] Chang Xu, Jian Ding, Jinwang Wang, Wen Yang#, Huai Yu, Lei Yu#, Gui-song Xia. CVPR, 2023
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RFLA: Gaussian Repective Field based Label Assignment for Tiny Object Detection. [Paper] [Code] Chang Xu, Jinwang Wang, Wen Yang#, Huai Yu, Lei Yu, Gui-song Xia. ECCV, 2022
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Detecting Tiny Objects in Aerial Images: A Normalized Wasserstein Distance and A New benchmark. [Paper] [Code] Chang Xu*, Jinwang Wang*, Wen Yang#, Huai Yu, Lei Yu, Gui-song Xia. ISPRS Journal of Photogrammetry and Remote Sensing, 2022 (Top-6 cited paper since 2022)
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Dot Distance for Tiny Object Detection in Aerial Images. [Paper] [Code] Chang Xu*, Jinwang Wang*, Wen Yang, Lei Yu. EarthVision (CVPRW), 2021
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Multi-modal Object Detection |
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Detecting Every Object from Events. [Paper] [Code] Haitian Zhang, Chang Xu, Xinya Wang, Bingde Liu, Guang Hua, Lei Yu, Wen Yang#. IEEE Transactions on Pattern Analysis and Machine Intelligence, 2025
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Drone-based RGBT Tiny Person Detection. [Paper] [Code] Yan Zhang*, Chang Xu*, Wen Yang#, Guangjun He, Huai Yu, Lei Yu, Gui-song Xia. ISPRS Journal of Photogrammetry and Remote Sensing, 2023
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Motion Robust High-Speed Light-Weighted Object Detection with Event Camera. [Paper] [Code] Bingde Liu, Chang Xu, Wen Yang#, Huai Yu, Lei Yu. IEEE Transactions on Instrumentation & Measurement, 2023
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Frequency-Adaptive Low-Latency Object Detection Using Events and Frames. [Paper] [Code] Haitian Zhang, Xiangyuan Wang, Chang Xu, Xinya Wang, Fang Xu, Huai Yu, Lei Yu, Wen Yang#. arxiv, 2024
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Label-efficient Object Detection |
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Minimizing Sample Redundancy for Label-efficient Object Detection in Aerial Images. [Paper] [Code] Ruixiang Zhang*, Chang Xu*, Haoran Zhu, Fang Xu, Wen Yang#, Haijian Zhang, Gui-Song Xia. IEEE Transactions on Geoscience and Remote Sensing, 2025
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S3OD: Size-unbiased semi-supervised object detection in aerial images. [Paper] [Code] Ruixiang Zhang, Chang Xu, Fang Xu, Wen Yang#, Guangjun He, Huai Yu, Gui-Song Xia. ISPRS Journal of Photogrammetry and Remote Sensing, 2025
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Robust Tiny Object Detection in Aerial Images amidst Label Noise. [Paper] [Code] Haoran Zhu*, Chang Xu*, Wen Yang#, Ruixiang Zhang, Yan Zhang, Gui-Song Xia. arxiv, 2024
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Tiny Object Detection with Single Point Supervision. [Paper] [Code] Haoran Zhu, Chang Xu, Ruixiang Zhang, Fang Xu, Wen Yang#, Haijian Zhang, Gui-Song Xia. arxiv, 2024
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Cross-view Geo-localization |
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ConGeo: Robust Cross-view Geo-localization across Ground View Variations. [Paper] [Code] Li Mi*, Chang Xu*,#, Javiera Castillo-Navarro, Syrielle Montariol, Wen Yang, Antoine Bosselut, Devis Tuia. ECCV, 2024
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Learning Cross-view Visual Geo-localization without Ground Truth. [Paper] [Code] Haoyuan Li, Chang Xu, Wen Yang#, Huai Yu, Gui-Song Xia. IEEE Transactions on Geoscience and Remote Sensing, 2024.
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Unsupervised Multi-view UAV Image Geo-localization via Iterative Rendering. [Paper] [Code] Haoyuan Li, Chang Xu, Wen Yang#, Li Mi, Huai Yu, Gui-Song Xia. arxiv, 2024.
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Aerial Tracking |
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A3Track: Achieving Precise Aerial Tracking with Receptive Field Alignment. [Paper] [Code] Xu Lei, Chang Xu, Wensheng Chen, Wen Yang#, Gui-song Xia. IEEE Transactions on Geoscience and Remote Sensing, 2023
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Joint target and background temporal propagation for aerial tracking. [Paper] [Code] Xu Lei, Chang Xu, Wensheng Chen, Wen Yang#. ISPRS Journal of Photogrammetry and Remote Sensing, 2024
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Awards
- Outstanding Graduate Thesis, 2021
Top 5%
Wuhan University - Hubei Translation Final Contest, 2020
Second Prize
Hubei, China - National Undergraduate Electronic Design Contest (Hubei), 2019
First Prize
Hubei, China
