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Jiahui Lei 雷嘉晖

I'm a CS Ph.D Student (2020-present) at University of Pennsylvania. My advisor is Prof. Kostas Daniilidis. I'm currently studying the representations and algorithms for 4D (3D+Time) and 3D geometric data.

I received my bachelor's degree (2016-2020) in Automation with ranking 1st/141 and with honors from Chu Kochen Honors College, Zhejiang University. Before that, I graduated from Dalian No.24 High School doing Physics Olympiad. Before that, I was born in 1998.

Email: leijh [AT] cis [dot] upenn [dot] edu  /  Google Scholar  /  Github

Research
GART: Gaussian Articulated Template Models

Jiahui Lei, Yufu Wang, Georgios Pavlakos, Lingjie Liu, Kostas Daniilidis
CVPR, 2024
project page / arXiv / video (YouTube) / video (Bilibili) / code
DynMF: Neural Motion Factorization for Real-time Dynamic View Synthesis with 3D Gaussian Splatting

Agelos Kratimenos, Jiahui Lei, Kostas Daniilidis
Arxiv, 2023
project page
NAP: Neural 3D Articulation Prior

Jiahui Lei, Congyue Deng, Bokui Shen, Leonidas Guibas, Kostas Daniilidis
NeurIPS, 2023
project page / arXiv / video (YouTube) / code
Banana: Banach Fixed-Point Network for Pointcloud Segmentation with Inter-Part Equivariance

Congyue Deng*, Jiahui Lei*, Bokui Shen, Kostas Daniilidis, Leonidas Guibas (* equal contribution)
NeurIPS, 2023
project page / arXiv / video (YouTube)
EFEM: Equivariant Neural Field Expectation Maximization for 3D Object Segmentation Without Scene Supervision

Jiahui Lei, Congyue Deng, Karl Schmeckpeper, Leonidas Guibas, Kostas Daniilidis
CVPR, 2023
project page / dataset / arXiv / video (YouTube) / video (Bilibili) / code
CaDeX: Learning Canonical Deformation Coordinate Space for Dynamic Surface Representation via Neural Homeomorphism

Jiahui Lei, Kostas Daniilidis
CVPR, 2022
project page / arXiv / video (YouTube) / video (Bilibili) / code
SE(3) Equivariant Convolution and Transformer in Ray Space

Yinshuang Xu, Jiahui Lei, Kostas Daniilidis
NeurIPS, 2023
paper / code
Unified Fourier-based Kernel and Nonlinearity Design for Equivariant Networks on Homogeneous Spaces

Yinshuang Xu*, Jiahui Lei*, Edgar Dobriban, Kostas Daniilidis (* equal contribution)
ICML, 2022
paper
Pix2Surf: Learning Parametric 3D Surface Models of Objects from Images

Jiahui Lei, Srinath Sridhar, Paul Guerrero, Minhyuk Sung, Niloy Mitra, Leonidas Guibas
ECCV, 2020
project page / arXiv / video / code / poster / bibtex
Service

Reviewer: CVPR, ICCV, ECCV, NeurIPS, ICLR, 3DV, BMVC, Siggraph Asia, Pacific Graphics .etc

Organizer: EquiVision Workshop at CVPR2024

Teaching

TA for CIS580 Fall22, CIS580 Spr22

Misc
I've been playing guitar since 2009, my main genre is Fingerstyle. (youtube link of my playing)

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