Search Results for author: Guandao Yang

Found 18 papers, 12 papers with code

PhysAvatar: Learning the Physics of Dressed 3D Avatars from Visual Observations

no code implementations5 Apr 2024 Yang Zheng, Qingqing Zhao, Guandao Yang, Wang Yifan, Donglai Xiang, Florian Dubost, Dmitry Lagun, Thabo Beeler, Federico Tombari, Leonidas Guibas, Gordon Wetzstein

This marks a significant advancement towards modeling photorealistic digital humans using physically based inverse rendering with physics in the loop.

Inverse Rendering

GPT-4V(ision) is a Human-Aligned Evaluator for Text-to-3D Generation

1 code implementation8 Jan 2024 Tong Wu, Guandao Yang, Zhibing Li, Kai Zhang, Ziwei Liu, Leonidas Guibas, Dahua Lin, Gordon Wetzstein

These metrics lack the flexibility to generalize to different evaluation criteria and might not align well with human preferences.

3D Generation Text to 3D

Accurate Differential Operators for Hybrid Neural Fields

1 code implementation10 Dec 2023 Aditya Chetan, Guandao Yang, Zichen Wang, Steve Marschner, Bharath Hariharan

Yet in many applications like rendering and simulation, hybrid neural fields can cause noticeable and unreasonable artifacts.

Orthogonal Adaptation for Modular Customization of Diffusion Models

no code implementations5 Dec 2023 Ryan Po, Guandao Yang, Kfir Aberman, Gordon Wetzstein

In this paper, we address a new problem called Modular Customization, with the goal of efficiently merging customized models that were fine-tuned independently for individual concepts.

NeRF Revisited: Fixing Quadrature Instability in Volume Rendering

no code implementations NeurIPS 2023 Mikaela Angelina Uy, Kiyohiro Nakayama, Guandao Yang, Rahul Krishna Thomas, Leonidas Guibas, Ke Li

Volume rendering requires evaluating an integral along each ray, which is numerically approximated with a finite sum that corresponds to the exact integral along the ray under piecewise constant volume density.

Learning a Diffusion Prior for NeRFs

no code implementations27 Apr 2023 Guandao Yang, Abhijit Kundu, Leonidas J. Guibas, Jonathan T. Barron, Ben Poole

Neural Radiance Fields (NeRFs) have emerged as a powerful neural 3D representation for objects and scenes derived from 2D data.

Polynomial Neural Fields for Subband Decomposition and Manipulation

1 code implementation9 Feb 2023 Guandao Yang, Sagie Benaim, Varun Jampani, Kyle Genova, Jonathan T. Barron, Thomas Funkhouser, Bharath Hariharan, Serge Belongie

We use this framework to design Fourier PNFs, which match state-of-the-art performance in signal representation tasks that use neural fields.

Residual Aligned: Gradient Optimization for Non-Negative Image Synthesis

no code implementations8 Feb 2022 Flora Yu Shen, Katie Luo, Guandao Yang, Harald Haraldsson, Serge Belongie

In this work, we address an important problem of optical see through (OST) augmented reality: non-negative image synthesis.

Image-to-Image Translation Translation

Stay Positive: Non-Negative Image Synthesis for Augmented Reality

1 code implementation CVPR 2021 Katie Luo, Guandao Yang, Wenqi Xian, Harald Haraldsson, Bharath Hariharan, Serge Belongie

In applications such as optical see-through and projector augmented reality, producing images amounts to solving non-negative image generation, where one can only add light to an existing image.

Image-to-Image Translation Style Transfer

Geometry Processing with Neural Fields

1 code implementation NeurIPS 2021 Guandao Yang, Serge Belongie, Bharath Hariharan, Vladlen Koltun

Most existing geometry processing algorithms use meshes as the default shape representation.

QPyTorch: A Low-Precision Arithmetic Simulation Framework

2 code implementations9 Oct 2019 Tianyi Zhang, Zhiqiu Lin, Guandao Yang, Christopher De Sa

Low-precision training reduces computational cost and produces efficient models.

Quantization

PointFlow: 3D Point Cloud Generation with Continuous Normalizing Flows

12 code implementations ICCV 2019 Guandao Yang, Xun Huang, Zekun Hao, Ming-Yu Liu, Serge Belongie, Bharath Hariharan

Specifically, we learn a two-level hierarchy of distributions where the first level is the distribution of shapes and the second level is the distribution of points given a shape.

Point Cloud Generation Variational Inference

SWALP : Stochastic Weight Averaging in Low-Precision Training

3 code implementations26 Apr 2019 Guandao Yang, Tianyi Zhang, Polina Kirichenko, Junwen Bai, Andrew Gordon Wilson, Christopher De Sa

Low precision operations can provide scalability, memory savings, portability, and energy efficiency.

Learning to Evaluate Image Captioning

1 code implementation CVPR 2018 Yin Cui, Guandao Yang, Andreas Veit, Xun Huang, Serge Belongie

To address these two challenges, we propose a novel learning based discriminative evaluation metric that is directly trained to distinguish between human and machine-generated captions.

8k Data Augmentation +2

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