Portrait of Qian Zhang

AI for Cultural Heritage · Computer Vision · 3D Vision

Qian Zhang 张乾

Associate Researcher, College of Computer Science and Technology, Tianjin University

天津大学计算机科学与技术学院 副研究员

I am an Associate Researcher at the College of Computer Science and Technology, Tianjin University. My research focuses on AI for Cultural Heritage, computer vision, imaging condition reproduction, fine-grained change detection, and 3D visual perception.

长期围绕“AI + Cultural Heritage”开展研究,主要关注文物本体状态精细感知、成像条件物理复现、 复杂场景三维视觉感知与文物身份可信鉴别等方向,面向文化遗产保护中的真实行业需求开展可落地的智能视觉系统研究。

About Me

I received my Ph.D. in Computer Application Technology from Tianjin University in 2023, supervised by Prof. Wei Feng. Before that, I received my M.S. degree from Tianjin University and my B.E. degree from Xidian University. From January 2024 to March 2026, I worked as a postdoctoral researcher at Tianjin University. Since April 2026, I have been an Associate Researcher at the College of Computer Science and Technology, Tianjin University.

My work aims to develop physically grounded visual perception methods and deployable intelligent systems for cultural heritage conservation, including fine-grained change monitoring, active camera/light relocalization, cultural relic fingerprinting, and digital heritage analysis.

Recent News

2026.04 Joined the College of Computer Science and Technology, Tianjin University as an Associate Researcher.
2026.03 Our paper UV-RGS was published in AAAI 2026.
2025.10 Our paper SU-RGS appeared in ICCV 2025.
2025.08 Our paper 2D Gaussian Splatting for Outdoor Scene Decomposition and Relighting appeared in IJCAI 2025.
2024 Papers on adversarial relighting and geometry-consistent NeRF were published in IEEE TIFS and ACM MM.

Research Interests

AI for Cultural Heritage

Intelligent perception and analysis methods for cultural relic monitoring, identity verification, preventive conservation, and digital heritage applications.

Fine-Grained Change Detection

Active camera/light relocalization and imaging-condition reproduction for suppressing false changes caused by pose and illumination differences.

3D Visual Perception

3D reconstruction, neural radiance fields, Gaussian splatting, scene decomposition, relighting, and sparse/unposed-view perception.

Cultural Relic Fingerprint

Intrinsic object fingerprint extraction, multimodal sensing, and trustworthy identity management for cultural relics.

Selected Publications

Code links are hidden for now and can be added later.

2026
AAAI 2026

UV-RGS: Relightable 3D Gaussian Splatting from Unposed Views under Varied Illuminations

Wei Feng, Chi Huang, Qi Zhang, Qian Zhang, Nan Li

Proceedings of the AAAI Conference on Artificial Intelligence, 2026.

To update

EgoRoC: Towards Egocentric Robotic Control via Task-Agnostic Visual Alignment

Authors and venue to be updated.

Paper link will be added after the official page becomes available.

To update

Write Where It Matters: Policy-Guided Watermarks for 3D Gaussian Splatting

Authors and venue to be updated.

Paper link will be added after the official page becomes available.

2025
ICCV 2025

SU-RGS: Relightable 3D Gaussian Splatting from Sparse Views under Unconstrained Illuminations

Qi Zhang, Chi Huang, Qian Zhang, Nan Li, Wei Feng

Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV), 2025.

IJCAI 2025

2D Gaussian Splatting for Outdoor Scene Decomposition and Relighting

Wei Feng, Kangrui Ye, Qi Zhang, Qian Zhang, Nan Li

Proceedings of the Thirty-Fourth International Joint Conference on Artificial Intelligence (IJCAI), 2025.

2024
IEEE TIFS 2024

Adversarial Relighting Against Face Recognition

Qian Zhang, Qing Guo, Ruijun Gao, Felix Juefei-Xu, Hongkai Yu, Wei Feng

IEEE Transactions on Information Forensics and Security, 2024.

ACM MM 2024

Learning Geometry Consistent Neural Radiance Fields from Sparse and Unposed Views

Qi Zhang, Chi Huang, Qian Zhang, Nan Li, Wei Feng

Proceedings of the 32nd ACM International Conference on Multimedia, 2024.

2022 and before
Neurocomputing 2022

Fast and Robust Active Camera Relocalization in the Wild for Fine-Grained Change Detection

Qian Zhang, Wei Feng, Yi-Bo Shi, Di Lin

Neurocomputing, 2022.

Science China 2021

面向预防性保护的文物本体智能原位监测系统

冯伟, 张乾, 田飞鹏, 王小伟, 柴勃隆, 孙济洲, 苏伯民

中国科学: 信息科学, 2021.

TPAMI 2019

Active Camera Relocalization from a Single Reference Image without Hand-Eye Calibration

Fei-Peng Tian, Wei Feng, Qian Zhang, Xiaowei Wang, Jizhou Sun, Vincenzo Loia, Zhi-Qiang Liu

IEEE Transactions on Pattern Analysis and Machine Intelligence, 2019.

IJCAI 2018

Active Recurrence of Lighting Condition for Fine-Grained Change Detection

Qian Zhang, Wei Feng, Liang Wan, Fei-Peng Tian, Ping Tan

Proceedings of the 27th International Joint Conference on Artificial Intelligence, 2018.

ICME 2017

Near-Surface Lighting Estimation and Reconstruction

Qian Zhang, Fei-Peng Tian, Ruize Han, Wei Feng

IEEE International Conference on Multimedia and Expo, 2017.

CVPR 2016

6D Dynamic Camera Relocalization from Single Reference Image

Wei Feng, Fei-Peng Tian, Qian Zhang, Jizhou Sun

IEEE/CVF Conference on Computer Vision and Pattern Recognition, 2016.

ICCV 2015

Fine-Grained Change Detection of Misaligned Scenes with Varied Illuminations

Wei Feng, Fei-Peng Tian, Qian Zhang, Nan Zhang, Liang Wan, Jizhou Sun

IEEE International Conference on Computer Vision, 2015.

Research Projects

2025–2027

Fine-Grained Scene Change Detection Based on Imaging-Element Reproduction

National Natural Science Foundation of China, Young Scientists Fund. Principal Investigator.

2025–2028

Key Technologies for In-situ Online Monitoring of Cave Temple Murals

National Key R&D Program of China. Sub-project leader.

2023–2026

Digital Fingerprint Extraction, Identification, and Intelligent Identity Management for Museum Collections

National Key R&D Program of China. Sub-project leader.

2024–2025

Demonstration of Cultural Relic Identity Confirmation Technology Services

National Cultural Heritage Administration research project. Principal Investigator.

Systems and Applications

Intelligent In-situ Monitoring System for Cultural Relics

A deployable system for fine-grained monitoring and analysis of cultural relic surface conditions, designed to reduce false alarms caused by camera pose and illumination differences.

Cultural Relic Fingerprint and Identity Management

Multimodal sensing and intrinsic object fingerprint extraction for trustworthy cultural relic identity verification, supporting object-level digital identity management.

Awards

  • National Gold Award, China International College Students' Innovation Competition, 2023.
  • Gold Award, Tianjin Division of China International “Internet+” College Students Innovation and Entrepreneurship Competition, 2021.
  • First Prize, Intellectual Property Innovation and Entrepreneurship Invention and Design Competition, 2020.
  • First Prize, Science and Technology Award of Chinese Society of Landscape Architecture, 2023.

Academic Services

  • Reviewer for CVPR, ICCV, Neurocomputing, Pattern Recognition, and other journals/conferences.

Patents and Software Copyrights

9 authorized Chinese invention patents and 5 software copyrights related to active illumination reproduction, active camera relocalization, mobile camera relocalization, and intelligent cultural relic monitoring systems.

Prospective Students

I am looking for self-motivated students interested in computer vision, 3D vision, AI for cultural heritage, fine-grained visual monitoring, and deployable intelligent systems. Students with backgrounds in programming, machine learning, computer vision, robotics, or digital heritage are welcome to contact me.

欢迎对计算机视觉、三维视觉、AI+文物、细微变化检测、智能感知系统等方向感兴趣的本科生、硕士生和博士生联系交流。 主页正式上线前,可根据实际招生政策进一步补充“招生名额、学生要求、推荐阅读”等内容。

CV

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