Search Results for author: Zhang Chen

Found 18 papers, 8 papers with code

Sparse Photometric 3D Face Reconstruction Guided by Morphable Models

no code implementations CVPR 2018 Xuan Cao, Zhang Chen, Anpei Chen, Xin Chen, Cen Wang, Jingyi Yu

We present a novel 3D face reconstruction technique that leverages sparse photometric stereo (PS) and latest advances on face registration/modeling from a single image.

3D Face Reconstruction Position +1

Deep Eyes: Binocular Depth-from-Focus on Focal Stack Pairs

no code implementations29 Nov 2017 Xinqing Guo, Zhang Chen, Siyuan Li, Yang Yang, Jingyi Yu

We then construct three individual networks: a Focus-Net to extract depth from a single focal stack, a EDoF-Net to obtain the extended depth of field (EDoF) image from the focal stack, and a Stereo-Net to conduct stereo matching.

Stereo Matching Stereo Matching Hand

Photo-Realistic Facial Details Synthesis from Single Image

1 code implementation ICCV 2019 Anpei Chen, Zhang Chen, Guli Zhang, Ziheng Zhang, Kenny Mitchell, Jingyi Yu

Our technique employs expression analysis for proxy face geometry generation and combines supervised and unsupervised learning for facial detail synthesis.

Face Generation

3D Face Reconstruction Using Color Photometric Stereo with Uncalibrated Near Point Lights

no code implementations4 Apr 2019 Zhang Chen, Yu Ji, Mingyuan Zhou, Sing Bing Kang, Jingyi Yu

We avoid the need for spatial constancy of albedo; instead, we use a new measure for albedo similarity that is based on the albedo norm profile.

3D Face Reconstruction Semantic Segmentation

A Neural Rendering Framework for Free-Viewpoint Relighting

2 code implementations CVPR 2020 Zhang Chen, Anpei Chen, Guli Zhang, Chengyuan Wang, Yu Ji, Kiriakos N. Kutulakos, Jingyi Yu

We present a novel Relightable Neural Renderer (RNR) for simultaneous view synthesis and relighting using multi-view image inputs.

Neural Rendering Novel View Synthesis

SofGAN: A Portrait Image Generator with Dynamic Styling

1 code implementation7 Jul 2020 Anpei Chen, Ruiyang Liu, Ling Xie, Zhang Chen, Hao Su, Jingyi Yu

To address this issue, we propose a SofGAN image generator to decouple the latent space of portraits into two subspaces: a geometry space and a texture space.

2D Semantic Segmentation Image Generation +1

Light Field-Based Underwater 3D Reconstruction Via Angular Resampling

no code implementations5 Sep 2021 Yuqi Ding, Zhang Chen, Yu Ji, Jingyi Yu, Jinwei Ye

Recovering 3D geometry of underwater scenes is challenging because of non-linear refraction of light at the water-air interface caused by the camera housing.

3D Reconstruction Depth Estimation

Multiresolution Deep Implicit Functions for 3D Shape Representation

no code implementations ICCV 2021 Zhang Chen, yinda zhang, Kyle Genova, Sean Fanello, Sofien Bouaziz, Christian Haene, Ruofei Du, Cem Keskin, Thomas Funkhouser, Danhang Tang

To the best of our knowledge, MDIF is the first deep implicit function model that can at the same time (1) represent different levels of detail and allow progressive decoding; (2) support both encoder-decoder inference and decoder-only latent optimization, and fulfill multiple applications; (3) perform detailed decoder-only shape completion.

3D Reconstruction 3D Shape Representation

Harnessing Low-Frequency Neural Fields for Few-Shot View Synthesis

1 code implementation15 Mar 2023 Liangchen Song, Zhong Li, Xuan Gong, Lele Chen, Zhang Chen, Yi Xu, Junsong Yuan

We further propose a simple-yet-effective strategy for tuning the frequency to avoid overfitting few-shot inputs: enforcing consistency among the frequency domain of rendered 2D images.

Novel View Synthesis

High Fidelity 3D Hand Shape Reconstruction via Scalable Graph Frequency Decomposition

1 code implementation CVPR 2023 Tianyu Luan, Yuanhao Zhai, Jingjing Meng, Zhong Li, Zhang Chen, Yi Xu, Junsong Yuan

To capture high-frequency personalized details, we transform the 3D mesh into the frequency domain, and propose a novel frequency decomposition loss to supervise each frequency component.

Multi-discontinuous Functional based Sliding Mode Cascade Observer for Estimation and Closed-loop Compensation Controller

no code implementations8 Sep 2023 Yiyong Sun, Zhang Chen, Guang Zhai, Bin Liang

The proposed observer consists of two layers: the first layer is a traditional sliding mode observer, and the second layer is a cascade observer.

NeuRBF: A Neural Fields Representation with Adaptive Radial Basis Functions

1 code implementation ICCV 2023 Zhang Chen, Zhong Li, Liangchen Song, Lele Chen, Jingyi Yu, Junsong Yuan, Yi Xu

The spatial positions of their neural features are fixed on grid nodes and cannot well adapt to target signals.

Spacetime Gaussian Feature Splatting for Real-Time Dynamic View Synthesis

1 code implementation28 Dec 2023 Zhan Li, Zhang Chen, Zhong Li, Yi Xu

Novel view synthesis of dynamic scenes has been an intriguing yet challenging problem.

8k Novel View Synthesis

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