Search Results for author: Zhaoyang Lyu

Found 12 papers, 7 papers with code

GetMesh: A Controllable Model for High-quality Mesh Generation and Manipulation

no code implementations18 Mar 2024 Zhaoyang Lyu, Ben Fei, Jinyi Wang, Xudong Xu, Ya zhang, Weidong Yang, Bo Dai

Mesh is a fundamental representation of 3D assets in various industrial applications, and is widely supported by professional softwares.

Point Cloud Pre-training with Diffusion Models

no code implementations25 Nov 2023 Xiao Zheng, Xiaoshui Huang, Guofeng Mei, Yuenan Hou, Zhaoyang Lyu, Bo Dai, Wanli Ouyang, Yongshun Gong

This generator aggregates the features extracted by the backbone and employs them as the condition to guide the point-to-point recovery from the noisy point cloud, thereby assisting the backbone in capturing both local and global geometric priors as well as the global point density distribution of the object.

Point Cloud Pre-training

DiffBIR: Towards Blind Image Restoration with Generative Diffusion Prior

1 code implementation29 Aug 2023 Xinqi Lin, Jingwen He, Ziyan Chen, Zhaoyang Lyu, Bo Dai, Fanghua Yu, Wanli Ouyang, Yu Qiao, Chao Dong

We present DiffBIR, a general restoration pipeline that could handle different blind image restoration tasks in a unified framework.

Blind Face Restoration Image Denoising +2

MATLABER: Material-Aware Text-to-3D via LAtent BRDF auto-EncodeR

no code implementations18 Aug 2023 Xudong Xu, Zhaoyang Lyu, Xingang Pan, Bo Dai

In this work, we propose Material-Aware Text-to-3D via LAtent BRDF auto-EncodeR (\textbf{MATLABER}) that leverages a novel latent BRDF auto-encoder for material generation.

3D Generation Text to 3D

Guided Diffusion Model for Adversarial Purification

2 code implementations30 May 2022 Jinyi Wang, Zhaoyang Lyu, Dahua Lin, Bo Dai, Hongfei Fu

In this paper, we propose a novel purification approach, referred to as guided diffusion model for purification (GDMP), to help protect classifiers from adversarial attacks.

Denoising

Accelerating Diffusion Models via Early Stop of the Diffusion Process

1 code implementation25 May 2022 Zhaoyang Lyu, Xudong Xu, Ceyuan Yang, Dahua Lin, Bo Dai

By modeling the reverse process of gradually diffusing the data distribution into a Gaussian distribution, generating a sample in DDPMs can be regarded as iteratively denoising a randomly sampled Gaussian noise.

Denoising Image Generation

Towards Evaluating and Training Verifiably Robust Neural Networks

1 code implementation CVPR 2021 Zhaoyang Lyu, Minghao Guo, Tong Wu, Guodong Xu, Kehuan Zhang, Dahua Lin

Recent works have shown that interval bound propagation (IBP) can be used to train verifiably robust neural networks.

Fastened CROWN: Tightened Neural Network Robustness Certificates

1 code implementation2 Dec 2019 Zhaoyang Lyu, Ching-Yun Ko, Zhifeng Kong, Ngai Wong, Dahua Lin, Luca Daniel

We draw inspiration from such work and further demonstrate the optimality of deterministic CROWN (Zhang et al. 2018) solutions in a given linear programming problem under mild constraints.

POPQORN: Quantifying Robustness of Recurrent Neural Networks

2 code implementations17 May 2019 Ching-Yun Ko, Zhaoyang Lyu, Tsui-Wei Weng, Luca Daniel, Ngai Wong, Dahua Lin

The vulnerability to adversarial attacks has been a critical issue for deep neural networks.

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