Jiahao Li

I am a PhD student at TTI-Chicago advised by Greg Shakhnarovich in the PALS Lab. I primarily work on 3D computer vision, generative modeling, and vision language models.

Before coming to TTIC, I received my Master of Computer Science from Washington University in St. Louis, advised by Ayan Chakrabarti. I got my Bachelor of Mathematics from Sun Yat-sen University. I have interned at Meta Reality Labs and Megvii.

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Research
Score Jacobian Chaining: Lifting Pretrained 2D Diffusion Models for 3D Generation
Haochen Wang*, Xiaodan Du*, Jiahao Li*, Raymond A. Yeh, Greg Shakhnarovich,
project page / arXiv / code

Generating 3D objects from 2D diffusion models by chaining scores with NeRF gradients.

Adapting CLIP For Phrase Localization Without Further Training
Jiahao Li, Greg Shakhnarovich, Raymond A. Yeh
arXiv / code

We do phrase localization by exploiting the ViT architecture of CLIP without extra training.

Iterative Distance-Aware Similarity Matrix Convolution with Mutual-Supervised Point Elimination for Efficient Point Cloud Registration
Jiahao Li, Changhao Zhang, Ziyao Xu, Hangning Zhou, Chi Zhang
ECCV, 2020
arXiv / code

A deep learning based point cloud registration pipeline.


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