Xifeng Gao


Principal Researcher @ Lightspeed Studios at Tencent | xifgao@global.tencent.com

I have wide research interests in fields related to Geometry Computing, such as Computer Graphics, Fabrication, and Robotics.

My current focus is on designing gaming oriented geometry processing and content generation algorithms, using techniques in differentiable/neural rendering, computational geometry, and numerical analysis.
We have multiple R&D intern openings for working on 3D static/dynamic content generation and processing problems. If interested, please let me know.

Publications


GaussianShader: 3D Gaussian Splatting with Shading Functions for Reflective Surfaces

YingWenQi Jiang, Jiadong Tu, Yuan Liu, Xifeng Gao, Xiaoxiao Long, Wenping Wang, Yuexin Ma

The IEEE / CVF Computer Vision and Pattern Recognition Conference(CVPR), 2024

[Paper]

Visual-Preserving Mesh Repair

Zhongtian Zheng, Xifeng Gao, Zherong Pan, Wei Li, Peng-Shuai Wang, Guoping Wang, Kui Wu

IEEE Transactions on Visualization and Computer Graphics (TVCG), 2024

[Paper]

Learning Reduced Fluid Dynamics

Zherong Pan, Xifeng Gao, Kui Wu

Thirty-Eighth AAAI Conference on Artificial Intelligence (AAAI), 2024

[Paper]

Learning Neural Traffic Rules

Xuan Zhang, Xifeng Gao, Kui Wu, Zherong Pan

IEEE Robotics and Automation Letters (RA-L), 2024

[Paper]

Joint UV Optimization and Texture Baking

Julian Knodt, Zherong Pan, Kui Wu, Xifeng Gao

ACM Transactions on Graphics (presented at SIGGRAPH AISA 2023), 2023

[Paper]

Texture Atlas Compression Based on Repeated Content Removal

Yuzhe Luo, Xiaogang Jin, Zherong Pan, Kui Wu, Qilong Kou, Xiajun Yang, Xifeng Gao

SIGGRAPH AISA 2023

[Project]

Learning based 2D Irregular Shape Packing

Zeshi Yang, Zherong Pan, Manyi Li, Kui Wu, Xifeng Gao

ACM Transactions on Graphics (Proceedings of SIGGRAPH AISA 2023), 2023

[Paper]

Real-time Height-field Simulation of Sand and Water Mixtures

Haozhe Su, Siyu Zhang, Zherong Pan, Mridul Aanjaneya, Xifeng Gao, Kui Wu

SIGGRAPH AISA 2023

[Project]

High-Order Moment-Encoded Kinetic Simulation of Turbulent Flows

Wei Li, Tongtong Wang, Zherong Pan, Xifeng Gao, Kui Wu, Mathieu Desbrun

ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia 2023), 2023

[Project]

Learning Reduced-Order Soft Robot Controller

Chen Liang, Xifeng Gao, Kui Wu, Zherong Pan

IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2023)

[Paper]

Robust Low-Poly Meshing for General 3D Models

Zhen Chen, Zherong Pan, Kui Wu, Etienne Vouga, Xifeng Gao

ACM Transactions on Graphics (Proceedings of SIGGRAPH 2023), 2023

[Project]

Sag-Free Initialization for Strand-Based Hybrid Hair Simulation

Jerry Hsu, Tongtong Wang, Zherong Pan, Xifeng Gao, Cem Yuksel, Kui Wu

ACM Transactions on Graphics (Proceedings of SIGGRAPH 2023), 2023

Best Siggraph Technical Paper Award, Honorable Mention

[Project]

Differentiable Learning of Scalable Multi-Agent Navigation Policies

Xiaohan Ye, Zherong Pan, Xifeng Gao, Kui Wu, Bo Ren

IEEE Robotics and Automation Letters (RA-L), 2023

[Paper]

First-order topology optimization via inexact Finite Element Analysis

Zherong Pan, Xifeng Gao, Kui Wu

Computer-Aided Design, 2023

[Paper]

Environment Warped Gait Trajectory Optimization for Complex Terrains

Zherong Pan, Tan Chen, Xianzhong Fang, Timothy Bretl, Xifeng Gao, Kui Wu

IEEE Robotics and Automation Letters (RA-L), 2022

[Paper]

High quality superpixel generation through regional decomposition

Yunyang Xu, Xifeng Gao, Caiming Zhang, Jianchao Tan, Xuemei Li

IEEE Transactions on Circuits and Systems for Video Technology 2022

[Paper]

3D Mesh Cutting for High Quality Atlas Packing

Shiyi Wang, Jiong Chen, Xifeng Gao, Hujun Bao, Jin Huang

Computer Aided Geometric Design 2022

[Paper]

Occluder Generation for Buildings in Digital Games

Kui Wu, Zherong Pan, Xifeng Gao

Computer Graphics Forum (Proceedings of Pacific Graphics 2022), 2022

[Paper] [Video]

Low-poly Mesh Generation for Building Models

Xifeng Gao, Kui Wu, Zherong Pan

Proceedings of SIGGRAPH, 2022

[Paper] [Project]

Graph Embedding for Multi-Robot Path Planning in Complex Environments

Xifeng Gao, Zherong Pan, Ruiqi Ni

IEEE Robotics and Automation Letters (RA-L), 2022

[Paper]

Hex-Mesh Generation and Processing: A Survey

Nico Pietroni, Marcel Campen, Alla Sheffer, Gianmarco Cherchi, David Bommes, Xifeng Gao, Franck Ledoux, Riccardo Scateni, Jean-Francois Remacle, Marco Livesu

ACM Transactions on Graphics (TOG, 2022)

[Paper] [Course (SIGGRAPH Asia 2022, Daegu, South Korea)]

3D-TSV: The 3D Trajectory-based Stress Visualizer

Junpeng Wang, Christoph Neuhauser, Jun Wu, Xifeng Gao, Rüdiger Westermann

Advances in Engineering Software, 2022

[Paper] [Code]

Restricted Delaunay Triangulation for Explicit Surface Reconstruction

Pengfei Wang, Zixiong Wang, Shiqing Xin, Xifeng Gao, Wenping Wang, Changhe Tu

ACM Transactions on Graphics, 2022

[Paper]

Robust Multi-Robot Trajectory Optimization Using Alternating Direction Method of Multiplier

Ruiqi Ni, Zherong Pan, Xifeng Gao

IEEE Robotics and Automation Letters (RA-L), 2022

[Paper] [UAV Code] [Arm Code]

A Large Scale Comparison of Tetrahedral and Hexahedral Elements for Finite Element Analysis

Teseo Schneider, Yixin Hu, Xifeng Gao, Jeremie Dumas, Denis Zorin, Daniele Panozzo

ACM Transactions on Graphics, 2022

[Paper] [Code]

Joint Search of Optimal Topology and Trajectory for Planar Linkages

Zherong Pan, Min Liu, Xifeng Gao, Dinesh Manocha

The International Journal of Robotics Research, 2021

[Paper]

Planning of Power Grasps Using Infinite Program Under Complementary Constraints

Zherong Pan, Duo Zhang, Changhe Tu, Xifeng Gao

IEEE Robotics and Automation Letters (RA-L), 2021

[Paper]

Computational Object-Wrapping Rope Nets

Jian Liu, Shiqing Xin, Xifeng Gao, Kaihang Gao, Kai Xu, Baoquan Chen, Changhe Tu

ACM Transactions on Graphics (TOG), 2021

[Paper]

Decentralized, Unlabeled Multi-Agent Navigation in Obstacle-Rich Environments using Graph Neural Networks

Xuebo Ji, He Li, Zherong Pan, Xifeng Gao, Changhe Tu

The IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2021)

[Paper]

Robust & Asymptotically Locally Optimal UAV-Trajectory Generation Based on Spline Subdivision

Ruiqi Ni, Teseo Schneider, Daniele Panozzo, Zherong Pan, Xifeng Gao

International Conference on Robotics and Automation (ICRA 2021)

[Paper]  [Data] [Code]

Wearable 3D Machine Knitting: Automatic Generation of Shaped Knit Sheets to Cover Real-World Objects

Kui Wu, Marco Tarini, Cem Yuksel, James McCann, Xifeng Gao

IEEE Transactions on Visualization and Computer Graphics (TVCG 2021)

[Paper]

Inner-Approximation of Manipulable and Reachable Regions using Bilinear Matrix Inequalities

Zherong Pan, Liang He, Xifeng Gao

The IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2020)

[Paper] 

Grasping Fragile Objects Using A Stress-Minimization Metric

Zherong Pan, Xifeng Gao, Dinesh Manocha

International Conference on Robotics and Automation (ICRA 2020)

[Paper]  [Video] 

Globally Optimal Joint Search of Topology and Trajectory for Planar Linkages

Zherong Pan, Min Liu, Xifeng Gao, Dinesh Manocha

The International Symposium on Robotics Research (ISRR 2019)

[Paper] 

Design and Optimization of Conforming Lattice Structures

Jun Wu, Weiming Wang, Xifeng Gao

IEEE Transactions on Visualization and Computer Graphics (TVCG), 2019

ESI Highly Cited Paper

[Paper]  [Project]  [Code of the Graph Generation]

Field-aligned Quadrangulation for Image Vectorization

Guangshun Wei, Yuanfeng Zhou, Xifeng Gao, Qian Ma, Shiqing Xin, Ying He

Computer Graphics Forum (Pacific Graphics, PG 2019)

[Paper] 

Feature Preserving Octree-Based Hexahedral Meshing

Xifeng Gao, Hanxiao Shen, Daniele Panozzo

Computer Graphics Forum (Eurographics Symposium on Geometry Processing, SGP 2019)

[Paper]  [Data]  [Code] 

TriWild: Robust Triangulation with Curve Constraints

Yixin Hu, Teseo Schneider, Xifeng Gao, Qingnan Zhou, Alec Jacobson, Denis Zorin, Daniele Panozzo

ACM Transactions on Graphics (SIGGRAPH 2019)

[Paper]  [Data]  [Code] 

Poly-Spline Finite Element Method

Teseo Schneider, Jeremie Dumas, Xifeng Gao, Mario Botsch, Daniele Panozzo, Denis Zorin

ACM Transactions on Graphics (Present in SIGGRAPH 2019); arXiv:1804.03245

[Paper]  [Code] 

Sketch Simplification Guided by Complex Agglomeration

Yue Liu, Xuemei Li, Pengbo Bo, Xifeng Gao

SCIENCE CHINA Information Sciences, 2019

[Paper]

Decoupling Simulation Accuracy from Mesh Quality

Teseo Schneider, Yixin Hu, Jeremie Dumas, Xifeng Gao, Daniele Panozzo, Denis Zorin

ACM Transactions on Graphics (SIGGRAPH Asia 2018)

[Paper]  [Code] 

Stitch Meshing

Kui Wu, Xifeng Gao, Zachary Ferguson, Daniele Panozzo, Cem Yuksel

ACM Transactions on Graphics (SIGGRAPH 2018)

[Paper]  [Project]  [Video]  [Code] 

Tetrahedral Meshing in the Wild

Yixin Hu, Qingnan Zhou, Xifeng Gao, Alec Jacobson, Denis Zorin, Daniele Panozzo

ACM Transactions on Graphics (SIGGRAPH 2018)

Frontiers of Science Awards by the International Congress of Basic Science Conference link

[Paper]  [Code]  [Figure Data]  [10K Input]  [10K Triangle Mesh Output]  [10K Tetrahedra Mesh Output] 

Robust Structure Simplification for Hex Re-meshing

Xifeng Gao, Daniele Panozzo, Wenping Wang, Zhigang Deng, Guoning Chen

ACM Transactions on Graphics (SIGGRAPH ASIA, 2017)

[Paper]   [Datasets (1.5Gb)]  [Code] 

Hexahedral Mesh Quality Improvement via Edge-Angle Optimization

Kaoji Xu, Xifeng Gao, Guoning Chen

Computer & Graphics (CAD/Graphics 2017)

[Paper]   [Video]  [Document/Data/Code] 

Evaluating Hex-mesh Quality Metrics via Correlation Analysis

Xifeng Gao, Jin Huang, Kaoji Xu, Zherong Pan, Zhigang Deng, Guoning Chen

Computer Graphics Forum (Eurographics Symposium on Geometry Processing, 2017)

[Paper]  [Documents 1 and 2] [Documents 3]  [Data (3Gb)]  [Code] [Bibtex] 

Robust Hex-Dominant Mesh Generation using Field-Guided Polyhedral Agglomeration

Xifeng Gao, Wenzel Jakob, Marco Tarini, Daniele Panozzo

ACM Transactions on Graphics (SIGGRAPH, 2017)

[Paper]  [Video/Dataset of Hex-dominant Meshes/Documents] [Code] [Bibtex] 

[Dataset of 106 Tetrahedral_Meshes, Link to the Surface Meshes] 

Hexahedral Meshing with Varying Element Sizes

Kaoji Xu, Xifeng Gao, Zhigang Deng, Guoning Chen

Computer Graphics Forum, 2017

[Paper]  [Supplementary] [Bibtex] 

A Local Frame based Hexahedral Mesh Optimization

Xifeng Gao, Guoning Chen

25th International Meshing Roundtable, Research Note, September, 2016

[Paper]   [Bibtex] 

A Modified Fuzzy C-means Algorithm for Brain MR Image Segmentation and Bias Field Correction

Wenqian Deng, Xuemei Li, Xifeng Gao, Caiming Zhang

Journal of Computer Science and Technology (Computational Visual Media 2016)

[Paper] [Bibtex]  

A Simple Algorithm of Superpixel Segmentation with Boundary Constraint

Yongxia Zhang, Xuemei Li, Xifeng Gao, Caiming Zhang

IEEE Transactions on Circuits and Systems for Video Technology, 2016

[Paper] [Bibtex]  

Structured Volume Decomposition via Generalized Sweeping

Xifeng Gao, Tobias Martin, Sai Deng, Elaine Cohen, Zhigang Deng, Guoning Chen

IEEE Transactions on Visualization and Computer Graphics, 2016

[Paper]  [Supplementary 1]  [Supplementary 2]  [Data]  [Video]  [Bibtex] 

Hexahedral Mesh Re-parameterization from Aligned Base-Complex

Xifeng Gao, Zhigang Deng, Guoning Chen

ACM Transactions on Graphics (SIGGRAPH 2015)

[Paper]  [Supplementary]  [Video]  [Bibtex] 

An Evaluation of The Quality of Hexahedral Meshes Via Modal Analysis

Xifeng Gao, Jin Huang, Siwang Li, Zhigang Deng, Guoning Chen

The First International Workshop on Hex-Meshing: Theory, Applications, and Evaluation, 2014.

[Paper] [Bibtex] 

A Robust High Capacity Affine-Transformation-Invariant Scheme for Watermarking 3D Geometric Models

Xifeng Gao, Caiming Zhang, Yan Huang, Zhigang Deng

ACM Transactions on Multimedia Computing, Communications and Applications (TOMM), 2012

[Paper] [Bibtex] 

Intraoperative Registration of Preoperative 4D Cardiac Anatomy with Real-time MR Images

Xifeng Gao, Nikhil V. Navkar, Nikolaos V. Tsekos, Zhigang Deng

IEEE 12th International Conference on BioInformatics and BioEngineering (BIBE 2012)

[Paper] [Bibtex]  

Disparity Adjustment for Local Stereo Matching

Xia Hu, Caiming Zhang, Wei Wang, Xifeng Gao

International Symp osium on Frontier of Computer Science, Engineering and Applications (CSEA 2010)

[Paper] [Bibtex]

Similarity-Transformation In-variant Reversible Watermarking Method for 3D Models

Xifeng Gao, Caiming Zhang, Yan Huang, Xia Hu, Anping Zhu

The Springer Lecture Notes on Electrical Engineering (ISCIS 2010)

[Paper] [Bibtex]

A Highly Adaptable Capacity and Invisibility 3D Watermarking Based on Four-Points Sets

Xifeng Gao, Caiming Zhang, Yu Wei, Weitao Li

The 12th ACM Multimedia and Security Workshop (MM & Sec 2010)

[Paper] [Bibtex]

Reversible Watermarking of 3D Mesh Models Using Prediction-error Expansion

Anping Zhu, Caiming Zhang, Xingqiang Yang, Xifeng Gao

The 3rd International Conference on Image and Signal Processing (CISP 2010)

[Paper] [Bibtex]

A new reversible watermarking of 3D models based on ratio expansion

Huamin Ji, Caiming Zhang, Xingqiang Yang, Xifeng Gao

The 3rd International Conference on Image and Signal Processing (CISP 2010)

[Paper] [Bibtex] 

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