Welcome to Zhiyuan Zhang’s Personal Website

I am a final-year Ph.D. student in Computer Science at City University of Hong Kong, advised by Jing Liao. My research focuses on controllable image and video generation, generative models, and 3D-guided content creation. During my Ph.D. studies, I have also been fortunate to receive valuable guidance and support from Dongdong Chen. Previously, I received my B.Sc. in Computer Science from CityU in 2023, where I conducted HCI research under the supervision of Ray LC.

This webpage is last updated on 2026/11/01.

Selected Research Papers (* denotes equal contribution)

Computer Graphics / Vision

MotionMem teaser

MotionMem: Future Trajectory Forecasting as Dynamic Memory for Video Generation

Zhiyuan Zhang, Wangguandong Zheng, Yansong Qu, Quanjian Song, Zesong Yang, Yuhao Liu, Jing Liao

VoxelMem teaser

VoxelMem: Video Generation with 4D Voxel Control and Memory

Zhiyuan Zhang, Jingbo Zhang, Zhitong Huang, Qi Sun, Haitao Lin, Shenghao Zhang, Yuzhen Liu, Jing Liao

FlexTraj teaser

FlexTraj: Image-to-Video Generation with Flexible Point Trajectory Control

Zhiyuan Zhang, Can Wang, Dongdong Chen, Jing Liao

Computer Vision and Pattern Recognition (CVPR), 2026

ControlTile teaser

Controllable Texture Tiling with Transformed RoPE-Enhanced Diffusion Models

Junrong HUANG, Zhiyuan Zhang, Rui TANG, Hongbo FU, Jing Liao

ACM SIGGRAPH, 2026

I2V3D teaser

I2V3D: Controllable Image-to-Video Generation with 3D Guidance

Zhiyuan Zhang, Dongdong Chen, Jing Liao

International Conference on Computer Vision (ICCV), 2025

SGEdit teaser

SGEdit: Bridging LLM with Text2Image Generative Model for Scene Graph-based Image Editing

Zhiyuan Zhang, Dongdong Chen, Jing Liao

ACM Transactions on Graphics (TOG), 2024

Continuous Layout Editing teaser

Continuous Layout Editing of Single Images with Diffusion Models

Zhiyuan Zhang*, Huang Zhitong*, Jing Liao

Computer Graphics Forum, 2023

Human-Computer Interaction

Dances with Drones teaser

Dances with Drones: Spatial Matching and Perceived Agency in Improvised Movements with Drone and Human Partners

Kaixu Dong*, Zhiyuan Zhang*, Xiaoyu Chang, Pakpong Chirarattananon, Ray LC

ACM Conference on Human Factors in Computing Systems (CHI), 2024

ELICITING (IMMERSIVE) INTANGIBLES teaser

ELICITING (IMMERSIVE) INTANGIBLES: GENAI-SUPPORTED COLLABORATIVE VISUAL NARRATION IN A PHYSICALLY IMMERSIVE SPACE

Marty Miller, Zhiyuan Zhang, Jing Liao, Ray LC

Proceedings of the ACM Designing Interactive Systems Conference (DIS), 2025

ELICITING (IMMERSIVE) INTANGIBLES teaser

AI as an Active Writer: Interaction strategies with generated text in human-AI collaborative fiction writing

Daijin Yang, Yanpeng Zhou, Zhiyuan Zhang, Toby Jia-Jun, Ray LC

HAI-GEN Workshop at IUI 2022

Internship

Tencent, IEG WorldModel Team Oct 2026 – Present
Research Intern Shenzhen

Bytedance, Douyin WorldModel Team Jul 2026 – Oct 2026
Research Intern Shenzhen

Tencent, RoboticsX Team Nov 2025 – Jul 2026
Research Intern Shenzhen

Meituan, Drone Team Jun 2022 – Aug 2022
Engineer Intern Shenzhen

Education

City University of Hong Kong 2023–2027
PhD in Computer Science

City University of Hong Kong 2019–2023
Bachelor of Science in Computer Science

University of Illinois Urbana-Champaign 2023
Exchange Program in Computer Science