activity
20182023
most citedLION: Latent Point Diffusion Models for 3D Shape Generation

190 citations · 244 across the 9 of their papers we have counts for

collaborators

13 papers

cs.CV2023

Neural Kernel Surface Reconstruction

Jiahui Huang, Zan Gojcic, Matan Atzmon +3

We present a novel method for reconstructing a 3D implicit surface from a large-scale, sparse, and noisy point cloud. Our approach builds upon the recently introduced Neural Kernel…

cs.CV2023★ 3 cited

Neural LiDAR Fields for Novel View Synthesis

Shengyu Huang, Zan Gojcic, Zian Wang +5

We present Neural Fields for LiDAR (NFL), a method to optimise a neural field scene representation from LiDAR measurements, with the goal of synthesizing realistic LiDAR scans from…

cs.CV2022★ 190 cited

LION: Latent Point Diffusion Models for 3D Shape Generation

Xiaohui Zeng, Arash Vahdat, Francis Williams +4

Denoising diffusion models (DDMs) have shown promising results in 3D point cloud synthesis. To advance 3D DDMs and make them useful for digital artists, we require (i) high generat…

cs.CV2022★ 7 cited

Learning Smooth Neural Functions via Lipschitz Regularization

Hsueh-Ti Derek Liu, Francis Williams, Alec Jacobson +2

Neural implicit fields have recently emerged as a useful representation for 3D shapes. These fields are commonly represented as neural networks which map latent descriptors and 3D…

cs.CV2021

Neural Fields as Learnable Kernels for 3D Reconstruction

Francis Williams, Zan Gojcic, Sameh Khamis +4

We present Neural Kernel Fields: a novel method for reconstructing implicit 3D shapes based on a learned kernel ridge regression. Our technique achieves state-of-the-art results wh…

math.OC2021★ 4 cited

Symmetry Breaking in Symmetric Tensor Decomposition

Yossi Arjevani, Joan Bruna, Michael Field +3

In this note, we consider the highly nonconvex optimization problem associated with computing the rank decomposition of symmetric tensors. We formulate the invariance properties of…

cs.CV2020

Human 3D keypoints via spatial uncertainty modeling

Francis Williams, Or Litany, Avneesh Sud +2

We introduce a technique for 3D human keypoint estimation that directly models the notion of spatial uncertainty of a keypoint. Our technique employs a principled approach to model…

cs.CV2020

Neural Splines: Fitting 3D Surfaces with Infinitely-Wide Neural Networks

Francis Williams, Matthew Trager, Joan Bruna +1

We present Neural Splines, a technique for 3D surface reconstruction that is based on random feature kernels arising from infinitely-wide shallow ReLU networks. Our method achieves…

cs.CV2019

VoronoiNet: General Functional Approximators with Local Support

Francis Williams, Daniele Panozzo, Kwang Moo Yi +1

Voronoi diagrams are highly compact representations that are used in various Graphics applications. In this work, we show how to embed a differentiable version of it -- via a novel…

cs.LG2019★ 36 cited

Gradient Dynamics of Shallow Univariate ReLU Networks

Francis Williams, Matthew Trager, Claudio Silva +3

We present a theoretical and empirical study of the gradient dynamics of overparameterized shallow ReLU networks with one-dimensional input, solving least-squares interpolation. We…

cs.GR2019★ 4 cited

Unwind: Interactive Fish Straightening

Francis Williams, Alexander Bock, Harish Doraiswamy +5

The ScanAllFish project is a large-scale effort to scan all the world's 33,100 known species of fishes. It has already generated thousands of volumetric CT scans of fish species wh…

cs.GR2018

ABC: A Big CAD Model Dataset For Geometric Deep Learning

Sebastian Koch, Albert Matveev, Zhongshi Jiang +6

We introduce ABC-Dataset, a collection of one million Computer-Aided Design (CAD) models for research of geometric deep learning methods and applications. Each model is a collectio…

cs.CV2018

Deep Geometric Prior for Surface Reconstruction

Francis Williams, Teseo Schneider, Claudio Silva +3

The reconstruction of a discrete surface from a point cloud is a fundamental geometry processing problem that has been studied for decades, with many methods developed. We propose…