Qi Zhang (张琦)

I am currently a Lead Researcher in the Imaging Algorithm Center of Vivo. Our group, as the core algorithm team, utilizes 3D and AIGC-based technologies to enhance the photography quality and user experience of smartphones. I do research in 3D computer vision and AI generated content (AIGC), where my interests focus on neural rendering, 3D Gaussian Splatting (3DGS), 3D reconstruction and modeling, and visual diffusion models.

During 2021–2024, I was a Researcher in Tencent AI Lab from Jun. 2021. Before that, I received my Ph.D. degree from the School of Computer Science of Northwestern Polytechnical University in 2021, supervised by Prof. Qing Wang. I was a visiting student at the Australian National University (ANU) between Jul. 2019 and Aug. 2020, supervised by Prof. Hongdong Li. I received the Outstanding Doctoral Dissertation Award Nominee from China Computer Federation (CCF) in 2021. I also won the 2021 ACM Xi'an Doctoral Dissertation Award and the 2023 NWPU Doctoral Dissertation Award.

Vivo (Xi'an & Hangzhou) is hiring multiple researchers and interns for projects on 3D reconstruction (e.g. NeRF, 3DGS, and NVS) and AIGC-based generation (including image or video diffusion models). Feel free to contact me via e-mail and WeChat.

News

Tech Transfer

vivo.S60.灵感趣贴Live

vivo S60 Inspiration Sticker Live

智能抠图生成动态贴纸，自由拼贴到任意 Live：一键实现自己与自己同框、跨界场景融合等创意玩法。

项目介绍 vivo 官网
vivo.S50.大师级Live运镜

vivo S50 Master-level Live Camera Movement

AI 自动运镜一键拍出电影级大片：高光慢动作捕捉精彩瞬间、3 倍丝滑变焦人景合一、希区柯克变焦营造视觉冲击。

项目介绍 vivo 官网
Tencent · Avatar · 数字人

4D Tencent Avatar

全息表演捕捉及人物建模技术，实现高保真 4D 内容生成。

项目介绍 微信原文
Tencent · 腾讯会议 · 裸眼3D

Tencent Meeting

沉浸式交流的腾讯裸眼 3D 实时会议系统，让远程沟通更自然。

项目介绍 微信原文

Research

Neural Rendering

NeRF, light fields, and physically-based inverse rendering for novel-view synthesis and relighting.

3D Gaussian Splatting

Efficient 3DGS reconstruction, editing, and streaming for real-time radiance-field rendering.

AIGC & Diffusion

Image/video diffusion priors for super-resolution, generation, and reference-guided 3D refinement.

Computational Photography

Light field imaging and camera modeling, image rectification, super-resolution, and learning-based photography pipelines.

Publications

Below is a complete list of my publications. Papers marked with a Representative paper badge are my representative works. The IEEE TPAMI and IJCV are top journals in the field of computer vision and computational photography. CVPR is the premier conference in the computer vision research community.

SIGGRAPH Asia 2023
LoD-NeuS

Anti-Aliased Neural Implicit Surfaces with Encoding Level of Detail

Yiyu Zhuang*, Qi Zhang*, Ying Feng, Hao Zhu, Yao Yao, Xiaoyu Li, Yanpei Cao, Ying Shan, Xun Cao

Builds anti-aliased neural implicit surfaces with an encoding level of detail for clean geometry.

Neural RenderingSIGGRAPH Asia, 2023

Project Page arXiv Code