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IDS Seminar - by Dr. Qixing Huang from University of Texas at Austin

Title: Geometric Regularizations for 3D Shape Generation

Speaker: Dr. Qixing Huang, Associate Professor with tenure at the Computer Science Department, The University of Texas at Austin
Moderator: Dr. Yanchao Yang, Assistant Professor, HKU IDS / Department of Electrical and Electronic Engineering

Date: Dec 18, 2023
Time: 3pm – 4pm

Mode: Hybrid. Seats for on-site participants are limited. A confirmation email will be sent to participants who have successfully registered.


Generative models, which map a latent parameter space to instances in an ambient space, enjoy various applications in 3D Vision and related domains. A standard scheme of these models is probabilistic, which aligns the induced ambient distribution of a generative model from a prior distribution of the latent space with the empirical ambient distribution of training instances. While this paradigm has proven to be quite successful on images, its current applications in 3D generation encounter fundamental challenges in the limited training data and generalization behavior. The key difference between image generation and shape generation is that 3D shapes possess various priors in geometry, topology, and physical properties. Existing probabilistic 3D generative approaches do not preserve these desired properties, resulting in synthesized shapes with various types of distortions. In this talk, I will discuss recent work that seeks to establish a novel geometric framework for learning shape generators. The key idea is to model various geometric, physical, and topological priors of 3D shapes as suitable regularization losses by developing computational tools in differential geometry and computational topology. We will discuss the applications in deformable shape generation, latent space design, joint shape matching, and 3D man-made shape generation.


Dr. Qixing Huang
Associate Professor @ Computer Science Department, The University of Texas at Austin

Qixing Huang is an associate professor with tenure at the computer science department of the University of Texas at Austin. His research sits at the intersection of graphics, geometry, optimization, vision, and machine learning. He has published more than 100 papers at leading venues across these areas. His research has received several awards, including multiple Best Paper awards, the Best Dataset Award at Symposium on Geometry Processing 2018, the IJCAI 2019 Early Career Spotlight, and the 2021 NSF Career award. He has also served as area chair of CVPR, ECCV, ICCV, and technical papers committees of SIGGRAPH and SIGGRAPH Asia, and co-chaired Symposium on Geometry Processing 2020.  


Dr. Yanchao Yang
Assistant Professor @ HKU IDS & Department of Electrical and Electronic Engineering

Dr Yanchao Yang is an Assistant Professor in the Department of Electrical and Electronic Engineering (EEE) and the HKU Musketeers Foundation Institute of Data Science (HKU-IDS). Before joining HKU, he was a Postdoctoral Research Fellow at Stanford University with Prof. Leonidas J. Guibas at the Geometric Computation Group. He received his Ph.D. from the University of California, Los Angeles (UCLA), working with Prof. Stefano Soatto. Earlier, he obtained his Master’s and Bachelor’s degrees from KAUST and USTC, respectively. He researches at the intersection of computer vision, machine learning, and robotics, with a long-term goal in developmental embodied intelligence. 

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