Relightable and animatable neural avatar from sparse-view video

Z Xu, S Peng, C Geng, L Mou, Z Yan… - Proceedings of the …, 2024 - openaccess.thecvf.com
This paper tackles the problem of creating relightable and animatable neural avatars from
sparse-view (or monocular) videos of dynamic humans under unknown illumination …

Implicit neural spatial representations for time-dependent pdes

H Chen, R Wu, E Grinspun, C Zheng… - … on Machine Learning, 2023 - proceedings.mlr.press
Abstract Implicit Neural Spatial Representation (INSR) has emerged as an effective
representation of spatially-dependent vector fields. This work explores solving time …

Walk on stars: A grid-free monte carlo method for pdes with neumann boundary conditions

R Sawhney, B Miller, I Gkioulekas, K Crane - arXiv preprint arXiv …, 2023 - arxiv.org
Grid-free Monte Carlo methods based on the walk on spheres (WoS) algorithm solve
fundamental partial differential equations (PDEs) like the Poisson equation without …

Reach For the Spheres: Tangency-aware surface reconstruction of SDFs

S Sellán, C Batty, O Stein - SIGGRAPH Asia 2023 Conference Papers, 2023 - dl.acm.org
Signed distance fields (SDFs) are a widely used implicit surface representation, with broad
applications in computer graphics, computer vision, and applied mathematics. To …

Differential Walk on Spheres

B Miller, R Sawhney, K Crane… - ACM Transactions on …, 2024 - dl.acm.org
We introduce a Monte Carlo method for computing derivatives of the solution to a partial
differential equation (PDE) with respect to problem parameters (such as domain geometry or …

Stochastic Computation of Barycentric Coordinates

F de Goes, M Desbrun - ACM Transactions on Graphics, 2024 - hal.science
This paper presents a practical and general approach for computing barycentric coordinates
through stochastic sampling. Our key insight is a reformulation of the kernel integral defining …

[PDF][PDF] Ray Tracing Harmonic Functions

M Gillespie, D Yang, M Botsch… - ACM Trans …, 2024 - ls7-gv.cs.tu-dortmund.de
𝑌− 1 1 (𝑥, 𝑦, 𝑧)≥ 0.488603 𝑌0 1 (𝑥, 𝑦, 𝑧)≥ 0.690988 𝑌1 1 (𝑥, 𝑦, 𝑧)≥ 0.488603 𝑌− 2 2
(𝑥, 𝑦, 𝑧)≥ 0.546274 𝑌− 1 2 (𝑥, 𝑦, 𝑧)≥ 0.546274 𝑌0 2 (𝑥, 𝑦, 𝑧)≥ 0.446031 𝑌1 2 (𝑥, 𝑦 …

Neural physical simulation with multi-resolution hash grid encoding

H Wang, T Yu, T Yang, H Qiao, Q Dai - Proceedings of the AAAI …, 2024 - ojs.aaai.org
We explore the generalization of the implicit representation in the physical simulation task.
Traditional time-dependent partial differential equations (PDEs) solvers for physical …

Neural skeleton: Implicit neural representation away from the surface

M Clémot, J Digne - Computers & Graphics, 2023 - Elsevier
Abstract Implicit Neural Representations are powerful tools for representing 3D shapes.
They encode an implicit field in the parameters of a Neural Network, leveraging the power of …

Neural Representation of Open Surfaces

TV Christiansen, JA Bærentzen… - Computer Graphics …, 2023 - Wiley Online Library
Neural implicit surfaces have emerged as an effective, learnable representation for shapes
of arbitrary topology. However, representing open surfaces remains a challenge. Different …