I'm currently a master candidate at the School of Geodesy and Geomatics (SGG), Wuhan University (WHU). My area of research currently focuses on integrated navigation systems and multi-sensor fusion. I'm working on the continue-time-based (B-spline-based) state estimation currently 😃.
- Student at Wuhan University, E-Mail: [email protected].
- A brief introduction about me can be found here.
- I love photography, I also love writing cpp (cplusplus) and creating funny toy libraries.
- Ask me about anything here.
- RIs-Calib: a targetless continuous-time-based multi-radar multi-IMU spatiotemporal calibrator.
- River: a continuous-time-based radar-inertial velocity estimator.
- MI-Calib: a continuous-time-based imu-only multi-IMU spatiotemporal calibrator.
- iKalibr: unified targetless spatiotemporal calibration for resilient integrated inertial systems.
- eKalibr: an event-based visual calibrator.
 |
 |
 |
|---|
 |
 |
|---|
-
eKalibr: an event-based visual calibrator. Related paper(s) 👇:
- S. Chen, X. Li*, L. Yuan, and Z. Liu. eKalibr: Dynamic Intrinsic Calibration for Event Cameras From First Principles of Events[J]. arXiv preprint arXiv:2501.05688, 2025. [paper-arXiv] [video] [code] [Under Review]
-
iKalibr: a continuous-time, targetless, unified spatiotemporal calibrator. Related paper(s) 👇:
- S. Chen, X. Li*, S. Li*, Y. Zhou, and X. Yang, "iKalibr: Unified Targetless Spatiotemporal Calibration for Resilient Integrated Inertial Systems," in IEEE Transactions on Robotics (T-RO), 2025. [paper-tro] [paper-arXiv] [video 1] [video 2] [code]
- S. Chen, X. Li*, S. Li and Y. Zhou, "iKalibr-RGBD: Partially-Specialized Target-Free Visual-Inertial Spatiotemporal Calibration For RGBDs via Continuous-Time Velocity Estimation," in IEEE Robotics and Automation Letters (RA-L), 2024. [paper-ral] [paper-arXiv] [code]
-
MI-Calib: a continuous-time-based multi-IMU spatiotemporal calibrator. Related paper(s) 👇:
-
River: a continuous-time-based radar-inertial velocity estimator. Related paper(s) 👇:
-
RIs-Calib: a targetless multi-radar multi-IMU spatiotemporal calibrator. Related paper(s) 👇:
- S. Chen, X. Li*, S. Li, Y. Zhou and S. Wang, "RIs-Calib: An Open-Source Spatiotemporal Calibrator for Multiple 3D Radars and IMUs Based on Continuous-Time Estimation," in IEEE Transactions on Instrumentation and Measurement (TIM), 2024. [paper-tim] [paper-arXiv] [code] [video]
-
ELIC-Calib: the extend version of
LIC-Calib, a targetless continuous-time-based multi-LiDAR multi-IMU multi-camera spatiotemporal calibrator. Related paper(s) 👇:- S. Chen, X. Li*, S. Li, Y. Zhou and S. Wang, "Targetless Spatiotemporal Calibration for Multiple Heterogeneous Cameras And IMUs Based on Continuous-Time Trajectory Estimation," in IEEE Transactions on Instrumentation and Measurement (TIM), 2023. [paper-tim]
- S. Li, X. Li*, S. Chen, Y. Zhou and S. Wang, "Targetless Spatiotemporal Calibration of Multi-LiDAR Multi-IMU System Based on Continuous-Time Optimization," in IEEE Transactions on Industrial Informatics (TII), 2024. [paper-tii]
-
LIC-Calib: a targetless continuous-time-based LiDAR/IMU/Camera spatiotemporal calibrator, supporting both GS and RS cameras. Related paper(s) 👇:
- S. Li, X. Li*, S. Chen, Y. Zhou and S. Wang, "Two-Step LiDAR/Camera/IMU Spatial And Temporal Calibration Based on Continuous-Time Trajectory Estimation," in IEEE Transactions on Industrial Electronics (TIE), 2023. [paper-tie]
- X. Li, S. Chen, S. Li*, Y. Zhou and S. Wang, "Accurate And Consistent Spatiotemporal Calibration for Heterogenous-Camera/IMU/LiDAR System Based on Continuous-Time Batch Estimation," in IEEE/ASME Transactions on Mechatronics (T-Mech), 2023. [paper-tmech]
So why is my nickname ULong2 😃? ULong is a data type in C++ that stands for unsigned long integer, which can store a large number, but no negative numbers are allowed. This represents my desire to explore a wide range of knowledge and a positive (non-negative) mindset. Interestingly, Long is also the pinyin for one of the Chinese characters in my name. And the number 2, yes, is my lucky number.
 |
 |
 |
|---|
