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Nathan Carr

5 accepted papers

2023

Normal-Guided Garment UV Prediction for Human Re-Texturing

CVPR 2023highlight

Clothes undergo complex geometric deformations, which lead to appearance changes. To edit human videos in a physically plausible way, a texture map must take into account not only the garment transformation induced by the body movements and clothes fitting, but also its 3D fine-grained surface geome…

Cited by 15Source ↗PDF ↗Scholar ↗
2020

DiffTaichi: Differentiable Programming for Physical Simulation

ICLR 2020poster

We present DiffTaichi, a new differentiable programming language tailored for building high-performance differentiable physical simulators. Based on an imperative programming language, DiffTaichi generates gradients of simulation steps using source code transformations that preserve arithmetic inten…

Cited by 486Source ↗Scholar ↗
2020

Learning Generative Models of Shape Handles

CVPR 2020poster

We present a generative model to synthesize 3D shapes as sets of handles -- lightweight proxies that approximate the original 3D shape -- for applications in interactive editing, shape parsing, and building compact 3D representations. Our model can generate handle sets with varying cardinality and d…

Cited by 34PDF ↗Scholar ↗
2019

Fast Spatially-Varying Indoor Lighting Estimation

CVPR 2019oral

We propose a real-time method to estimate spatially-varying indoor lighting from a single RGB image. Given an image and a 2D location in that image, our CNN estimates a 5th order spherical harmonic representation of the lighting at the given location in less than 20ms on a laptop mobile graphics car…

Cited by 167PDF ↗Scholar ↗
2015

PatchMatch-Based Automatic Lattice Detection for Near-Regular Textures

ICCV 2015poster

In this work, we investigate the problem of automatically inferring the lattice structure of near-regular textures (NRT) in real-world images. Our technique leverages the PatchMatch algorithm for finding k-nearest-neighbor (kNN) correspondences in an image. We use these kNNs to recover an initial es…

Cited by 28PDF ↗Scholar ↗