Shiyong Liu

I'm a research scientist at Huawei Noah's Ark Lab in ShenZhen, China, where I work on a small team that mostly works on 3DGS.

At Huawei I've worked on Large Scene Reconstruction, Camera Poses Estimation, Motion Capture, VR, Multi-model Recommendation & Search, Defect Detection and Machine Vision. I did my Master degree at National University of Defense Technology (NUDT).

Email / CV / Scholar / Github

Research

I'm interested in 3D computer vision, including camera pose estimation, motion capture and 3D reconstrucrion. Some papers are highlighted.

	OccluGaussian: Occlusion-Aware Gaussian Splatting for Large Scene Reconstruction and Rendering Shiyong Liu, Xiao Tang, Zhihao Li, Yingfan He ChongJie Ye, Jianzhuang Liu, Binxiao Huang Shunbo Zhou Xiaofei Wu arXiv, 2025 project page / arXiv A method for accelerating and enhancing large-scale 3D scene reconstruction via occlusion-aware camera clustering and region-based Gaussian culling.
	Direction-Aware Hybrid Representation Learning for 3D Hand Pose and Shape Estimation Shiyong Liu, Zhihao Li, Xiao Tang, Jianzhuang Liu, CVPRW, 2025, First Place in HO3Dv2/v3 leaderboards for the metric of PA-MPJPE arXiv A method for 3D hand pose/shape estimation, fusing implicit image/explicit 2D joint features with pixel direction info, reducing motion jitter via confidence-based prediction.
	SpecTRe-GS: Modeling Highly Specular Surfaces with Reflected Nearby Objects by Tracing Rays in 3D Gaussian Splatting Jiajun Tang, Fan Fei, Zhihao Li, Xiao Tang, Shiyong Liu, Youyu Chen, Binxiao Huang, Dave Zhenyu Chen, Xiaofei Wu, Boxin Shi CVPR, 2025, Highlight project page / arXiv A method for enhancing 3DGS with ray tracing for specular inter-reflections, separating specular/rough surface types and optimizing geometry to improve rendering accuracy and enable scene editing.
	Decoupling Appearance Variations with 3D Consistent Features in Gaussian Splatting Jiaqi Ling, Zhihao Li, Bingxiao Huang, Xiao Tang Jianzhuang Liu, Shiyong Liu, Xiaofei Wu Fenglong Song Wenming Yang AAAI, 2025 project page / arXiv A method for decoupling appearance variations in a plug-and-play and efficient manner.
	Vastgaussian: Vast 3d gaussians for large scene reconstruction Jiaqi Ling, Zhihao Li, Jianzhuang Liu, Shiyong Liu, Yangdi Lu, Xiaofei Wu Songcen Xu Youliang Yan Wenming Yang CVPR, 2024 project page / arXiv An approach for large scene reconstruction that enabling fast optimization and high-fidelity real-time rendering.
	Mirrorgaussian: Reflecting 3d gaussians for reconstructing mirror reflections Jiayue Liu, Xiao Tang, Freeman Cheng, Roy Yang, Zhihao Li, Jianzhuang Liu, Yi Huang, Jiaqi Lin, Shiyong Liu, Xiaofei Wu Songcen Xu Chun Yuan ECCV, 2024 project page / arXiv MirrorGaussian achieves high-quality and real-time rendering in scenes with mirrors, empowering scene editing like adding new mirrors and objects.

Miscellanea

Industry Projects

3DGS reconstruction on mobile phones
Large scene reconstruction and real-time rendering
Large scene camera pose estimation
3D motion capture for digital human
Multimodal video-based content search technology
Leading Huawei’s iVision platform and its operators
Responsible for industrial defect detection.

Thanks for Jon Barron's website open source source code.