🎓
Senior undergraduate (Class of 2026) in Automation at Guohao College, Tongji University.
🔜
Incoming Direct Ph.D. student at Fudan University (Fall 2026), advised by Prof. Siyu Zhu.
🧠
Research Interests: Generative World Models & 3D Vision.
Aiming to build Interactive Video Models that physically understand and simulate the real world.
🎯
Future Focus: Next-Gen Diffusion Architectures (Uniform/Discrete) & Visual Generation for AGI (RL + Video).

🔥 News

  • 2026.01:  🎉🎉 One paper (GeoPurify) has been accepted by ICLR 2026!
  • 2025.09:  🎉🎉 I successfully received the admission offer for the Direct Ph.D. program at Fudan University.

📝 Publications

ICLR 2026
GeoPurify
GeoPurify: A Data-Efficient Geometric Distillation Framework for Open-Vocabulary 3D Segmentation
Weijia Dou, Xu Zhang, Yi Bin*, Jian Liu, Bo Peng, Guoqing Wang, Yang Yang, Heng Tao Shen
The 14th International Conference on Learning Representations (ICLR), 2026
  • Identified the limitation of feature inconsistency when projecting 2D VLM features to 3D.
  • Proposed GeoPurify to recover latent geometric structures via Geometric Contrastive Distillation.
  • Achieved SOTA performance using only ~1.5% of annotated data.

💻 Research Experience

2025.02 - 2025.09
Research Intern at Tsinghua University

Advised by Prof. Jiwen Lu and mentored by Dr. Wenzhao Zheng.
Topic: 3D Spatial Geometric Consistency in Video Generation.

  • Identified that existing fidelity-centric metrics (e.g., FVD) fail to capture geometric distortions.
  • Proposed SGC metric to quantify geometric instability via local camera pose divergence.
2024.09 - Present
Research Intern at Tongji University

Advised by Prof. Yi Bin.
Topic: Open-Vocabulary 3D Scene Understanding.

  • Investigated the geometric disconnect in VLM-based 3D segmentation.
  • Developed GeoPurify to align 2D semantic richness with 3D structural priors.

🎖 Honors and Awards

Scholarships

  • 2025, Xiaomi Scholarship (Awarded to excellent students in technology fields)
  • 2024, National Scholarship (Highest Honor for Undergraduates in China, Top 0.2%)
  • 2024, Tongji Qidi Scholarship (Top 20 students in the college)
  • 2023 - 2025, Merit Student of Tongji University (Awarded for 3 consecutive years)

Competitions

  • 2024, “Star” Level Award (First Prize), The 18th “Challenge Cup” National Undergraduate Curricular Academic Science and Technology Works Competition (“Black Technology” Track).
  • 2024, Second Prize, The 7th National Undergraduate Embedded Chip and System Design Competition (FPGA Track).
  • 2024, Most Popular Project, The 17th National Conference on Undergraduate Innovation and Entrepreneurship.