Search Results for author: Wenzheng Chen

Found 12 papers, 5 papers with code

Extracting Triangular 3D Models, Materials, and Lighting From Images

2 code implementations CVPR 2022 Jacob Munkberg, Jon Hasselgren, Tianchang Shen, Jun Gao, Wenzheng Chen, Alex Evans, Thomas Müller, Sanja Fidler

We present an efficient method for joint optimization of topology, materials and lighting from multi-view image observations.

Learning Deformable Tetrahedral Meshes for 3D Reconstruction

1 code implementation NeurIPS 2020 Jun Gao, Wenzheng Chen, Tommy Xiang, Clement Fuji Tsang, Alec Jacobson, Morgan McGuire, Sanja Fidler

We introduce Deformable Tetrahedral Meshes (DefTet) as a particular parameterization that utilizes volumetric tetrahedral meshes for the reconstruction problem.

3D Reconstruction

Image GANs meet Differentiable Rendering for Inverse Graphics and Interpretable 3D Neural Rendering

no code implementations ICLR 2021 Yuxuan Zhang, Wenzheng Chen, Huan Ling, Jun Gao, Yinan Zhang, Antonio Torralba, Sanja Fidler

Key to our approach is to exploit GANs as a multi-view data generator to train an inverse graphics network using an off-the-shelf differentiable renderer, and the trained inverse graphics network as a teacher to disentangle the GAN's latent code into interpretable 3D properties.

Neural Rendering

Auto-Tuning Structured Light by Optical Stochastic Gradient Descent

no code implementations CVPR 2020 Wenzheng Chen, Parsa Mirdehghan, Sanja Fidler, Kiriakos N. Kutulakos

We consider the problem of optimizing the performance of an active imaging system by automatically discovering the illuminations it should use, and the way to decode them.

Learning to Predict 3D Objects with an Interpolation-based Differentiable Renderer

1 code implementation NeurIPS 2019 Wenzheng Chen, Jun Gao, Huan Ling, Edward J. Smith, Jaakko Lehtinen, Alec Jacobson, Sanja Fidler

Many machine learning models operate on images, but ignore the fact that images are 2D projections formed by 3D geometry interacting with light, in a process called rendering.

Single-View 3D Reconstruction

Fast Interactive Object Annotation with Curve-GCN

2 code implementations CVPR 2019 Huan Ling, Jun Gao, Amlan Kar, Wenzheng Chen, Sanja Fidler

Our model runs at 29. 3ms in automatic, and 2. 6ms in interactive mode, making it 10x and 100x faster than Polygon-RNN++.

Steady-state Non-Line-of-Sight Imaging

no code implementations CVPR 2019 Wenzheng Chen, Simon Daneau, Fahim Mannan, Felix Heide

Relying on consumer color image sensors, with high fill factor, high quantum efficiency and low read-out noise, we demonstrate high-fidelity color NLOS imaging for scene configurations tackled before with picosecond time resolution.

Optimal Structured Light à La Carte

no code implementations CVPR 2018 Parsa Mirdehghan, Wenzheng Chen, Kiriakos N. Kutulakos

We consider the problem of automatically generating sequences of structured-light patterns for active stereo triangulation of a static scene.

Disparity Estimation

A Holistic Approach for Data-Driven Object Cutout

no code implementations18 Aug 2016 Huayong Xu, Yangyan Li, Wenzheng Chen, Dani Lischinski, Daniel Cohen-Or, Baoquan Chen

We show that the resulting P-maps may be used to evaluate how likely a rectangle proposal is to contain an instance of the class, and further process good proposals to produce an accurate object cutout mask.

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