Sida Peng (彭思达)

Tenure-track Assistant Professor

3D Vision Group
School of Software Technology
Zhejiang University

Email: pengsida at zju dot edu dot cn

[Google Scholar][GitHub]

Short Bio

I am an assistant professor (ZJU-100 Young Professor) at Zhejiang University. I received my Ph.D. degree from College of Computer Science and Technology at Zhejiang University in 2023, supervised by Prof. Xiaowei Zhou and Prof. Hujun Bao, and obtained my bachelor degree in Information Engineering from Zhejiang University in 2018. I received the 2024 CCF Outstanding Doctoral Dissertation Award and was selected as the 2022 Apple Scholar in AI/ML. I have been maintaining a handbook on learning research, which have received more than 9,700 stars on GitHub.

I work closely with Prof. Xiaowei Zhou. We are looking for students, postdocs and research assistants. Please apply to our lab here if you are interested in working with us.

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Research Summary

I like advancing spatial agents and solving fundamental research problems that arise from important challenges. I also like exploring the capability boundaries of new techniques in addressing these challenges.

After the CVPR 2025 submission, I decided to pursue research projects that address crucial problems in the industry with significant impact. Such problems typically lack well-established solutions, necessitating us to explore new techniques and provide new insights. I would avoid participating in projects that lack both practical value and unresolved problems, as I believe they only produces useless papers, consuming my passion for research.

The following are my target systems:

Closed-Loop Simulator
Spatial Agent Foundation
Volumetric Video

Selected Preprint

InfiniDepth: Arbitrary-Resolution and Fine-Grained Depth Estimation with Neural Implicit Fields
Hao Yu, Haotong Lin, Jiawei Wang, Jiaxin Li, Yida Wang, Xueyang Zhang, Yue Wang, Xiaowei Zhou, Ruizhen Hu, Sida Peng
[Paper][Project Page][Code]
MatchAnything: Universal Cross-Modality Image Matching with Large-Scale Pre-Training
Xingyi He, Hao Yu, Sida Peng, Dongli Tan, Zehong Shen, Hujun Bao, Xiaowei Zhou
[Paper][Project Page][Code]

Selected Publications (* denotes equal contribution, and † denotes the corresponding author)

2026

IntrinsicAnything: Learning Diffusion Priors for Inverse Rendering Under Unknown Illumination
Sida Peng, Jiarui Guo, Xi Chen, Yuan Liu, Dongchen Yang, Hujun Bao, Xiaowei Zhou
TPAMI 2026.
[Paper][Project Page][Code]

2025

Street Gaussians: Modeling Dynamic Urban Scenes with Gaussian Primitives
Sida Peng, Yushi Long, Yunzhi Yan, Haotong Lin, Chenxu Zhou, Haiyang Sun, Kun Zhan, Xianpeng Lang, Hujun Bao, Xiaowei Zhou
TPAMI 2025.
[Paper][Project Page][Code]
Towards Depth Foundation Model: Recent Trends in Vision-Based Depth Estimation
Zhen Xu*, Hongyu Zhou*, Sida Peng, Haotong Lin, Haoyu Guo, Jiahao Shao, Peishan Yang, Qinglin Yang, Sheng Miao, Xingyi He, Yifan Wang, Yue Wang, Ruizhen Hu, Yiyi Liao, Xiaowei Zhou, Hujun Bao
CVMJ 2025.
[Paper]
Split4D: Decomposed 4D Scene Reconstruction Without Video Segmentation
Yongzhen Hu, Yihui Yang, Haotong Lin, Yifan Wang, Junting Dong, Yifu Deng, Xinyu Zhu, Fan Jia, Hujun Bao, Xiaowei Zhou, Sida Peng†
SIGGRAPH Asia 2025 Journal Track. TOG 2025.
Hierarchy UGP: Hierarchy Unified Gaussian Primitive for Large-Scale Dynamic Scene Reconstruction
Hongyang Sun*, Qinglin Yang*, Jiawei Wang*, Zhen Xu, Chen Liu, Yida Wang, Kun Zhan, Hujun Bao, Xiaowei Zhou, Sida Peng†
ICCV 2025.
[Paper]
ReTracker: Exploring Image Matching for Robust Online Any Point Tracking
Dongli Tan, Xingyi He, Sida Peng, Yiqing Gong, Xing Zhu, Jiaming Sun, Ruizhen Hu, Yujun Shen, Hujun Bao, Xiaowei Zhou
ICCV 2025 Highlight.
[Paper]
StreetCrafter: Street View Synthesis with Controllable Video Diffusion Models
Yunzhi Yan*, Zhen Xu*, Haotong Lin, Haian Jin, Haoyu Guo, Yida Wang, Kun Zhan, Xianpeng Lang, Hujun Bao, Xiaowei Zhou, Sida Peng†
CVPR 2025.
[Paper][Project Page][Code]
Prompting Depth Anything for 4K Resolution Accurate Metric Depth Estimation
Haotong Lin, Sida Peng†, Jingxiao Chen, Songyou Peng, Jiaming Sun, Minghuan Liu, Hujun Bao, Jiashi Feng, Xiaowei Zhou, Bingyi Kang
CVPR 2025.
[Paper][Project Page][Code]
LiDAR-RT: Gaussian-based Ray Tracing for Dynamic LiDAR Re-simulation
Chenxu Zhou*, Lvchang Fu*, Sida Peng†, Yunzhi Yan, Zhanhua Zhang, Yong Chen, Jiazhi Xia, Xiaowei Zhou
CVPR 2025.
[Paper][Project Page][Code]
Multi-view Reconstruction via SfM-guided Monocular Depth Estimation
Haoyu Guo*, He Zhu*, Sida Peng, Haotong Lin, Yunzhi Yan, Tao Xie, Wenguan Wang, Xiaowei Zhou, Hujun Bao
CVPR 2025 Oral presentation.
[Paper][Project Page][Code]
FreeTimeGS: Free Gaussian Primitives at Anytime Anywhere for Dynamic Scene Reconstruction
Yifan Wang*, Peishan Yang*, Zhen Xu*, Jiaming Sun, Zhanhua Zhang, Yong Chen, Hujun Bao, Sida Peng, Xiaowei Zhou
CVPR 2025.
[Paper][Project Page][Interactive Demo][Media Coverage]

2024

Street Gaussians for Modeling Dynamic Urban Scenes
Yunzhi Yan, Haotong Lin, Chenxu Zhou, Weijie Wang, Haiyang Sun, Kun Zhan, Xianpeng Lang, Xiaowei Zhou, Sida Peng†
ECCV 2024.
[Paper][Project Page][Code]
GRM: Large Gaussian Reconstruction Model for Efficient 3D Reconstruction and Generation
Yinghao Xu, Zifan Shi, Yifan Wang, Hansheng Chen, Ceyuan Yang, Sida Peng, Yujun Shen, Gordon Wetzstein
ECCV 2024.
[Paper][Project Page]
Neural 3D Scene Reconstruction with Indoor Planar Priors
Xiaowei Zhou, Haoyu Guo, Sida Peng, Yuxi Xiao, Haotong Lin, Qianqian Wang, Guofeng Zhang, Hujun Bao
TPAMI 2024.
[Paper][Supplementary Material][Project Page][Code]
4K4D: Real-Time 4D View Synthesis at 4K Resolution
Zhen Xu, Sida Peng, Haotong Lin, Guangzhao He, Jiaming Sun, Yujun Shen, Hujun Bao, Xiaowei Zhou
CVPR 2024.
[Paper][Project Page][Code]
Detector-Free Structure from Motion
Xingyi He, Jiaming Sun, Yifan Wang, Sida Peng, Qixing Huang, Hujun Bao, Xiaowei Zhou
CVPR 2024. First Place in Image Matching Challenge 2023.
[Paper][Project Page][Code]
SpatialTracker: Tracking Any 2D Pixels in 3D Space
Yuxi Xiao, Qianqian Wang, Shangzhan Zhang, Nan Xue, Sida Peng, Yujun Shen, Xiaowei Zhou
CVPR 2024 Highlight.
[Paper][Project Page][Code]
Efficient LoFTR: Semi-Dense Local Feature Matching with Sparse-Like Speed
Yifan Wang*, Xingyi He*, Sida Peng†, Dongli Tan, Xiaowei Zhou
CVPR 2024 Highlight.
[Paper][Project Page][Code]
Animatable Implicit Neural Representations for Creating Realistic Avatars from Videos
Xiaowei Zhou, Sida Peng†, Zhen Xu, Junting Dong, Qianqian Wang, Shangzhan Zhang, Qing Shuai, Hujun Bao
TPAMI 2024.
[Paper][Supplementary Material][Project Page][Code]
A Guide to Conducting a Research Project
Sida Peng
CCCF 2024.
[Article][Project Page][Talk]

2023

EasyVolcap: Accelerating Neural Volumetric Video Research
Zhen Xu, Tao Xie, Sida Peng, Haotong Lin, Qing Shuai, Zhiyuan Yu, Guangzhao He, Jiaming Sun, Hujun Bao, Xiaowei Zhou
SIGGRAPH Asia 2023 Technical Communications.
[Paper][Code]
Im4D: High-Fidelity and Real-Time Novel View Synthesis for Dynamic Scenes
Haotong Lin, Sida Peng†, Zhen Xu, Tao Xie, Xingyi He, Hujun Bao, Xiaowei Zhou
SIGGRAPH Asia 2023.
[Paper][Project Page][Code]
Representing Volumetric Videos as Dynamic MLP Maps
Sida Peng*, Yunzhi Yan*, Qing Shuai, Hujun Bao, Xiaowei Zhou
CVPR 2023.
[Paper][Project Page][Code]
Learning Neural Volumetric Representations of Dynamic Humans in Minutes
Chen Geng*, Sida Peng*, Zhen Xu*, Hujun Bao, Xiaowei Zhou
CVPR 2023.
[Paper][Project Page][Code]
Grid-guided Neural Radiance Fields for Large Urban Scenes
Linning Xu*, Yuanbo Xiangli*, Sida Peng, Xingang Pan, Nanxuan Zhao, Christian Theobalt, Bo Dai, Dahua Lin
CVPR 2023.
[Paper][Project Page]
Implicit Neural Representations with Structured Latent Codes for Human Body Modeling
Sida Peng, Chen Geng, Yuanqing Zhang, Yinghao Xu, Qianqian Wang, Qing Shuai, Xiaowei Zhou, Hujun Bao
TPAMI 2023.
[Paper][Code]

2022

TotalSelfScan: Learning Full-body Avatars from Self-Portrait Videos of Faces, Hands, and Bodies
Junting Dong, Qi Fang, Yudong Guo, Sida Peng, Qing Shuai, Hujun Bao, Xiaowei Zhou
NeurIPS 2022.
[Paper][Project Page][Code]
Efficient Neural Radiance Fields for Interactive Free-viewpoint Video
Haotong Lin*, Sida Peng*, Zhen Xu, Yunzhi Yan, Qing Shuai, Hujun Bao, Xiaowei Zhou
SIGGRAPH Asia 2022.
[Paper][Project Page][Code]
MPS-NeRF: Generalizable 3D Human Rendering from Multiview Images
Xiangjun Gao, Jiaolong Yang, Jongyoo Kim, Sida Peng, Zicheng Liu, Xin Tong
TPAMI 2022.
[Paper][Project Page][Code]
NerfCap: Human Performance Capture with Dynamic Neural Radiance Fields
Kangkan Wang, Sida Peng, Xiaowei Zhou, Jian Yang, and Guofeng Zhang
TVCG 2022.
[Paper]
Learning to Estimate Object Poses without Real Image Annotations
Haotong Lin*, Sida Peng*, Zhize Zhou, Xiaowei Zhou
IJCAI 2022.
[Paper][Code]
Neural 3D Scene Reconstruction with the Manhattan-world Assumption
Haoyu Guo*, Sida Peng*, Haotong Lin, Qianqian Wang, Guofeng Zhang, Hujun Bao, Xiaowei Zhou
CVPR 2022 Oral presentation.
[Paper][Supplementary Material][Project Page][Code]
3D-aware Image Synthesis via Learning Structural and Textural Representations
Yinghao Xu, Sida Peng, Ceyuan Yang, Yujun Shen, Bolei Zhou
CVPR 2022.
[Paper][Project Page][Code]
Neural Rays for Occlusion-aware Image-based Rendering
Yuan Liu, Sida Peng, Lingjie Liu, Qianqian Wang, Peng Wang, Christian Theobalt, Xiaowei Zhou, Wenping Wang
CVPR 2022.
[Paper][Project Page][Code]
Towards Efficient and Photorealistic 3D Human Reconstruction: A Brief Survey
Lu Chen, Sida Peng, Xiaowei Zhou
Visual Informatics 2022.
[Paper]

2021

Animatable Neural Radiance Fields for Modeling Dynamic Human Bodies
Sida Peng*, Junting Dong*, Qianqian Wang, Shangzhan Zhang, Qing Shuai, Xiaowei Zhou, Hujun Bao
ICCV 2021.
[Paper][Supplementary Material][Project Page][Code][Extension]
Neural Body: Implicit Neural Representations with Structured Latent Codes for Novel View Synthesis of Dynamic Humans
Sida Peng, Yuanqing Zhang, Yinghao Xu, Qianqian Wang, Qing Shuai, Hujun Bao, Xiaowei Zhou
CVPR 2021 Best paper candidate.
[Paper][Supplementary Material][Project Page][Code]

2020

PVNet: Pixel-wise Voting Network for 6DoF Object Pose Estimation
Sida Peng*, Xiaowei Zhou*, Yuan Liu, Haotong Lin, Qixing Huang, Hujun Bao
TPAMI 2020.
[Paper][Code]
Deep Snake for Real-Time Instance Segmentation
Sida Peng, Wen Jiang, Huaijin Pi, Xiuli Li, Hujun Bao, Xiaowei Zhou
CVPR 2020 Oral presentation.
[Paper][Code]

2019

GIFT: Learning Transformation-Invariant Dense Visual Descriptors via Group CNNs
Yuan Liu, Zehong Shen, Zhixuan Lin, Sida Peng, Hujun Bao, Xiaowei Zhou
NeurIPS 2019.
[Paper][Supplementary Material][Project Page][Code]
PVNet: Pixel-wise Voting Network for 6DoF Estimation
Sida Peng*, Yuan Liu*, Qixing Huang, Xiaowei Zhou, Hujun Bao
CVPR 2019 Oral presentation.
[Paper][Supplementary Material][Project Page][Code]

Honors

Services

Teaching

Teaching Assistant