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@PolyU-VCLab

PolyU-VCLab

Visual Computing Lab, The Hong Kong Polytechnic University

Welcome to the Visual Computing Lab at HK PolyU 👋

The Visual Computing Lab at The Hong Kong Polytechnic University, led by Prof. Lei Zhang, works on image/video restoration and quality assessment, multimodal perception and reasoning, image/video synthesis, 3D perception and generation, efficient architectures and training, as well as benchmarks and datasets.

Here we share our projects, code, models, benchmarks, datasets, and demos.

𝕏 X • 🤗 Hugging Face • 📕 Xiaohongshu


🔥 Research Areas and Representative Works

🖼️ Image / Video Restoration, Enhancement and Quality Assessment

Real-world image and video restoration, enhancement, super-resolution, and perceptual quality assessment.

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

🤖 Multimodal Perception, Understanding and Reasoning

MLLM-based visual perception, grounding, OOD detection, dense understanding, and multimodal reasoning.

2026

2025

2024

🎨 Image and Video Synthesis and Generation

Efficient, controllable, and high-quality generative models for image synthesis, editing, and video generation.

2026

2025

2024

2023

2022

🌍 3D Perception, Reconstruction and Generation

3D reconstruction, scene generation, and versatile 3D editing from images, videos, and language prompts.

2026

2025

2024

2023

⚡ Architecture and Training Paradigms

New model architectures and efficient training paradigms for vision models, diffusion transformers, LLMs, and VLMs.

2026

2025

2024

2023

2022

2020

  • Gradient Centralization (ECCV 2020) — Paper | Code
  • SA-SSD (CVPR 2020) — Paper | Code

2018

📊 Benchmarks and Datasets

Benchmarks and datasets for rigorous evaluation and reproducible progress in visual computing.

2026

2023

2021

2019


📚 More

For a broader list of our papers, models, and datasets, please visit our Hugging Face Collections.

If you are interested in our work, welcome to follow the organization and star our repositories ⭐

Popular repositories Loading

  1. GGT-100K GGT-100K Public

    GGT-100K: Generative Ground Truth for Generalizable Real-World Image Restoration

    Python 74 5

  2. OpenOOD-VLM OpenOOD-VLM Public

    ECCV24, NeurIPS24, CVPR26*2, ECCV26, Benchmarking Generalized Out-of-Distribution Detection with Vision-Language Models

    Python 60 10

  3. DepthMaster DepthMaster Public

    [NeurIPS 2026] DepthMaster: Unified Monocular Depth Estimation for Perspective and Panoramic Images

    Python 27

  4. WRC WRC Public

    Weighted Reverse Convolution for Feature Upsampling

    Python 26 1

  5. TVEdit TVEdit Public

    23

  6. HarnessIR HarnessIR Public

    HarnessIR: Harnessing Multimodal Foundation Models for Universal Real-World Image Restoration

    Python 14

Repositories

Showing 10 of 12 repositories
  • WRC Public

    Weighted Reverse Convolution for Feature Upsampling

    PolyU-VCLab/WRC's past year of commit activity
    Python 26 1 0 0 Updated Oct 8, 2026
  • HarnessIR Public

    HarnessIR: Harnessing Multimodal Foundation Models for Universal Real-World Image Restoration

    PolyU-VCLab/HarnessIR's past year of commit activity
    Python 14 MIT 0 0 0 Updated Oct 8, 2026
  • LDMisAE Public

    Official code for LDM-is-AE: Latent Diffusion Model is an Auto-Encoder for End-to-End Image Generation (NeurIPS, 2026)

    PolyU-VCLab/LDMisAE's past year of commit activity
    Python 13 Apache-2.0 0 0 0 Updated Oct 7, 2026
  • PVD Public

    [NeurIPS 2026] Two Halves are More than One: Phase-wise Velocity Distillation for Fast and High-Quality Image Generation

    PolyU-VCLab/PVD's past year of commit activity
    Python 9 Apache-2.0 0 1 0 Updated Oct 7, 2026
  • DepthMaster-page Public

    DepthMaster project page (large static assets, glb/ply gallery)

    PolyU-VCLab/DepthMaster-page's past year of commit activity
    JavaScript 0 0 0 0 Updated Sep 30, 2026
  • DepthMaster Public

    [NeurIPS 2026] DepthMaster: Unified Monocular Depth Estimation for Perspective and Panoramic Images

    PolyU-VCLab/DepthMaster's past year of commit activity
    Python 27 MIT 0 0 0 Updated Sep 30, 2026
  • OpenOOD-VLM Public

    ECCV24, NeurIPS24, CVPR26*2, ECCV26, Benchmarking Generalized Out-of-Distribution Detection with Vision-Language Models

    PolyU-VCLab/OpenOOD-VLM's past year of commit activity
    Python 60 MIT 10 2 0 Updated Aug 21, 2026
  • TVEdit Public
    PolyU-VCLab/TVEdit's past year of commit activity
    23 0 1 0 Updated Jun 17, 2026
  • GGT-100K Public

    GGT-100K: Generative Ground Truth for Generalizable Real-World Image Restoration

    PolyU-VCLab/GGT-100K's past year of commit activity
    Python 74 5 0 0 Updated Jun 1, 2026
  • DEL Public

    Digit Entropy Loss for Numerical Learning of LLMs

    PolyU-VCLab/DEL's past year of commit activity
    Python 2 Apache-2.0 1 0 0 Updated May 24, 2026

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