Shangchen Zhou

Research Fellow at MMLab@NTU

College of Computing and Data Science
Nanyang Technological University, Singapore

Biography

Shangchen is currently a Research Fellow at MMLab@NTU, working with Prof. Chen Change Loy on low-level vision and multimodal generation. Before that, he earned his Ph.D. in Computer Science from Nanyang Technological University (NTU), also supervised by Prof. Chen Change Loy at MMLab@NTU. His research interests include computer vision and computational photography, with a focus on generative intelligence. He has done a wide range of work on 2D and 3D visual enhancement and creation, with the goal of building more capable generative AI with industry-level quality and applicability.

| VIEW MY PROJECTS →

News

➤ [07/2024]: Received CGAOSSA Award 2023.

➤ [06/2024]: Our StableSR is accepted to IJCV.

➤ [06/2024]: We organize the 3rd MIPI 2024 workshop in CVPR 2024 ( Seattle).

➤ [02/2024]: Three papers are accepted to CVPR 2024.

➤ [01/2024]: One paper about local image deblurring is accepted by ICLR 2024.

➤ [12/2023]: One paper about real-world image super-resolution is accepted by AAAI 2024.

➤ [09/2023]: Our PGDiff is accepted to NeurIPS 2023.

➤ [07/2023]: Our ProPainter and CLIP-LIT are accepted to ICCV 2023.

➤ [03/2023]: Our BracketFlare Dataset for reflective flare removal is accepted by CVPR 2023 as a Highlight paper.

➤ [01/2023]: Our UHDFour on UHD low-light enhancement is accepted by ICLR 2023 as Oral.

➤ [12/2022]: We organize the 2nd MIPI 2023 workshop in CVPR 2023 ( Vancouver).

➤ [09/2022]: Our CodeFormer and Flare7K Dataset are accepted to NeurIPS 2022.

➤ [07/2022]: Our LEDNet is accepted to ECCV 2022.

➤ [04/2022]: We organize a new workshop called Mobile Intelligent Photography and Imaging (MIPI) in ECCV 2022.

➤ [03/2022]: Two papers are accepted to CVPR 2022.

➤ [04/2021]: Our BasicVSR++ won 3 champions and 1 runner-up in NTIRE 2021 Challenges.

➤ [03/2021]: One paper is accepted to CVPR 2021.

➤ [10/2020]: Got my first top 10% outstanding reviewer recognition from NeurIPS 2020.

➤ [09/2020]: One paper is accepted to NeurIPS 2020.

➤ [07/2020]: Two papers are accepted to ECCV 2020.

➤ [11/2019]: Two papers are accepted to AAAI 2020.

➤ [07/2019]: Two papers are accepted to ICCV 2019.

➤ [04/2019]: Our Stereo Blur Dataset is publicly available.

➤ [03/2019]: One paper is accepted to CVPR 2019 as Oral.

Publications

[Highlight]

[Full List]

[Google Scholar]

Preprint Papers

ObjectClear: Complete Object Removal via Object-Effect Attention,
Jixin Zhao, Shangchen Zhou, Zhouxia Wang, Peiqing Yang, Chen Change Loy,
arXiv Preprint, 2025.
■ Precise Object & Effect Removal ■ Consistent Background
GitHub stars GitHub forks

@inproceedings{zhao2025ObjectClear,
  title={{ObjectClear}: Complete Object Removal via Object-Effect Attention},
  author={Zhao, Jixin and Zhou, Shangchen and Wang, Zhouxia and Yang, Peiqing and Loy, Chen Change},
  booktitle={arXiv preprint arXiv:2505.22636},
  year={2025}
}

Conference Papers

Bokeh Diffusion: Defocus Blur Control in Text-to-Image Diffusion Models,
Armando Fortes, Tianyi Wei, Shangchen Zhou, Xingang Pan,
ACM SIGGRAPH Asia, 2025.

@inproceedings{fortes2025bokeh,
  title={{Bokeh Diffusion}: Defocus Blur Control in Text-to-Image Diffusion Models},
  author={Fortes, Armando and Wei, Tianyi and Zhou, Shangchen and Pan, Xingang},
  booktitle={ACM SIGGRAPH Asia},
  year={2025}
}

MatAnyone: Stable Video Matting with Consistent Memory Propagation,
Peiqing Yang, Shangchen Zhou, Jixin Zhao, Qingyi Tao, Chen Change Loy,
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2025.
```
@inproceedings{yang2025matanyone,
  title={{MatAnyone}: Stable Video Matting with Consistent Memory Propagation},
  author={Peiqing Yang and Shangchen Zhou and Jixin Zhao and Qingyi Tao and Chen Change Loy},
  booktitle={CVPR},
  year={2025}
}
```
3DEnhancer: Consistent Multi-View Diffusion for 3D Enhancement,
Yihang Luo, Shangchen Zhou, Yushi Lan, Xingang Pan, Chen Change Loy,
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2025.
```
@inproceedings{luo20243denhancer,
  title={{3DEnhancer}: Consistent Multi-View Diffusion for 3D Enhancement},
  author={Yihang Luo and Shangchen Zhou and Yushi Lan and Xingang Pan and Chen Change Loy},
  booktitle={CVPR},
  year={2025}
}
```
SAR3D: Autoregressive 3D Object Generation and Understanding via Multi-scale 3D VQVAE,
Yongwei Chen, Yushi Lan, Shangchen Zhou, Tengfei Wang, Xingang Pan,
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2025.
```
@inproceedings{chen2024sar3d,
  title={{SAR3D}: Autoregressive 3D Object Generation and Understanding via Multi-scale 3D VQVAE},
  author={Yongwei Chen and Yushi Lan and Shangchen Zhou and Tengfei Wang and Xingang Pan},
  booktitle={CVPR},
  year={2025}
}
```

GaussianAnything: Interactive Point Cloud Latent Diffusion for 3D Generation,
Yushi Lan, Shangchen Zhou, Zhaoyang Lyu, Fangzhou Hong, Shuai Yang, Bo Dai, Xingang Pan, Chen Change Loy,
International Conference on Learning Representations (ICLR), 2025.

@inproceedings{lan2024ga,
  title={{GaussianAnything}: Interactive Point Cloud Latent Diffusion for 3D Generation},
  author={Yushi Lan and Shangchen Zhou and Zhaoyang Lyu and Fangzhou Hong and Shuai Yang and Bo Dai and Xingang Pan and Chen Change Loy},
  booktitle={ICLR},
  year={2025}
}

Upscale-A-Video: Temporal-Consistent Diffusion Model for Real-World Video Super-Resolution,
Shangchen Zhou*, Peiqing Yang*, Jianyi Wang, Yihang Luo, Chen Change Loy,
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR, Highlight), 2024.
Upscale-A-Video is a text-guided diffusion model for upscaling old or AI-generated videos.
```
@inproceedings{zhou2023upscale,
  title={{Upscale-A-Video}: Temporal-Consistent Diffusion Model for Real-World Video Super-Resolution},
  author={Zhou, Shangchen and Yang, Peiqing and Wang, Jianyi and Luo, Yihang and Loy, Chen Change},
  booktitle={CVPR},
  year={2024}
}
```
Learning Inclusion Matching for Animation Paint Bucket Colorization,
Yuekun Dai, Shangchen Zhou, Qinyue Li, Chongyi Li, Chen Change Loy,
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2024.
```
@inproceedings{dai2024inclusion,
  title={Learning Inclusion Matching for Animation Paint Bucket Colorization},
  author={Dai, Yuekun and Zhou, Shangchen and Li, Qinyue and Li, Chongyi and Loy, Chen Change},
  booktitle={CVPR},
  year={2024}
}
```

PGDiff: Guiding Diffusion Models for Versatile Face Restoration via Partial Guidance,
Peiqing Yang, Shangchen Zhou, Qingyi Tao, Chen Change Loy,
Neural Information Processing Systems (NeurIPS), 2023.

@inproceedings{yang2023pgdiff,
  title={{PGDiff}: Guiding Diffusion Models for Versatile Face Restoration via Partial Guidance},
  author={Yang, Peiqing and Zhou, Shangchen and Tao, Qingyi and Loy, Chen Change},
  booktitle={NeurIPS},
  year={2023}
}

ProPainter: Improving Propagation and Transformer for Video Inpainting,
Shangchen Zhou, Chongyi Li, Kelvin C.K. Chan, Chen Change Loy,
IEEE International Conference on Computer Vision (ICCV), 2023.
🔥 ProPainter is an advanced video inpainting model for object removal and video completion.
```
@inproceedings{zhou2023propainter,
  title={{ProPainter}: Improving Propagation and Transformer for Video Inpainting},
  author={Zhou, Shangchen and Li, Chongyi and Chan, Kelvin C. K. and Loy, Chen Change},
  booktitle={ICCV},
  year={2023}
}
```

Iterative Prompt Learning for Unsupervised Backlit Image Enhancement,
Zhexin Liang, Chongyi Li, Shangchen Zhou, Ruicheng Feng, Chen Change Loy,
IEEE International Conference on Computer Vision (ICCV, Oral), 2023.

@inproceedings{liang2023cliplit,
  title={Iterative Prompt Learning for Unsupervised Backlit Image Enhancement},
  author={Liang, Zhexin and Li, Chongyi and Zhou, Shangchen and Feng, Ruicheng and Loy, Chen Change},
  booktitle={ICCV},
  year={2023}
}

Nighttime Smartphone Reflective Flare Removal using Optical Center Symmetry Prior,
Yuekun Dai, Yihang Luo, Shangchen Zhou, Chongyi Li, Chen Change Loy,
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR, Highlight), 2023.
```
@inproceedings{dai2023bracketflare,
  title={Nighttime Smartphone Reflective Flare Removal using Optical Center Symmetry Prior},
  author={Dai, Yuekun and Luo, Yihang and Zhou, Shangchen and Li, Chongyi and Loy, Chen Change},
  booktitle={CVPR},
  year={2023}
}
```
[CodeFormer] Towards Robust Blind Face Restoration with Codebook Lookup TransFormer,
Shangchen Zhou, Kelvin C.K. Chan, Chongyi Li, Chen Change Loy,
Neural Information Processing Systems (NeurIPS), 2022.
🔥 CodeFormer is a robust face restoration algorithm for old photos or AI-generated faces.
```
@inproceedings{zhou2022codeformer,
  title={Towards Robust Blind Face Restoration with Codebook Lookup TransFormer},
  author={Zhou, Shangchen and Chan, Kelvin CK and Li, Chongyi and Loy, Chen Change},
  booktitle={Proceedings of Neural Information Processing Systems},
  year={2022}
}
```

Flare7K: A Phenomenological Nighttime Flare Removal Dataset,
Yuekun Dai, Chongyi Li, Shangchen Zhou, Ruicheng Feng, Chen Change Loy,
Neural Information Processing Systems (NeurIPS), 2022.

@inproceedings{dai2022flare7k,
  title={{Flare7K}: A Phenomenological Nighttime Flare Removal Dataset},
  author={Dai, Yuekun and Li, Chongyi and Zhou, Shangchen and Feng, Ruicheng and Loy, Chen Change},
  booktitle={NeurIPS 2022 Datasets and Benchmarks Track},
  year={2022}
}

LEDNet: Joint Low-light Enhancement and Deblurring in the Dark,
Shangchen Zhou, Chongyi Li, Chen Change Loy,
European Conference on Computer Vision (ECCV), 2022.
```
@inproceedings{zhou2022lednet,
  title={{LEDNet}: Joint Low-light Enhancement and Deblurring in the Dark},
  author={Zhou, Shangchen and Li, Chongyi and Loy, Chen Change},
  booktitle={ECCV},
  year={2022}
}
```

RealBasicVSR: Investigating Tradeoffs in Real-World Video Super-Resolution,
Kelvin C.K. Chan, Shangchen Zhou, Xiangyu Xu, Chen Change Loy,
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2022.

@inproceedings{chan2022realbasicvsr,
  title={Investigating Tradeoffs in Real-World Video Super-Resolution},
  author={Chan, Kelvin CK and Zhou, Shangchen and Xu, Xiangyu and Loy, Chen Change},
  booktitle={Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition},
  year={2022}
}

BasicVSR++: Improving Video Super-Resolution with Enhanced Propagation and Alignment,
Kelvin C.K. Chan, Shangchen Zhou, Xiangyu Xu, Chen Change Loy,
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2022.
🏅 Three Champions, NTIRE 2021 Challenges on Video Enhancement at CVPR'21 [link]
```
@inproceedings{chan2022basicvsr++,
  title={Improving Video Super-Resolution with Enhanced Propagation and Alignment},
  author={Chan, Kelvin CK and Zhou, Shangchen and Xu, Xiangyu and Loy, Chen Change},
  booktitle={Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition},
  year={2022}
}
```

Cross-Scale Internal Graph Neural Network for Image Super-Resolution,
Shangchen Zhou, Jiawei Zhang, Wangmeng Zuo, Chen Change Loy,
Neural Information Processing Systems (NeurIPS), 2020.

@inproceedings{zhou2020cross,
  title={Cross-Scale Internal Graph Neural Network for Image Super-Resolution},
  author={Zhou, Shangchen and Zhang, Jiawei and Zuo, Wangmeng and Loy, Chen Change},
  booktitle={Proceedings of Neural Information Processing Systems},
  year={2020}
}

Blind Face Restoration via Deep Multi-scale Component Dictionaries,
Xiaoming Li, Chaofeng Chen, Shangchen Zhou, Xianhui Lin, Wangmeng Zuo, Lei Zhang,
European Conference on Computer Vision (ECCV), 2020.

@inproceedings{li2020dfdnet,
 title={Blind Face Restoration via Deep Multi-scale Component Dictionaries},
  author={Li, Xiaoming Li and Chen, Chaofeng and Zhou, Shangchen and Lin, Xianhui and Zuo, Wangmeng and Zhang, Lei},
  booktitle={Proceedings of European Conference on Computer Vision},
  year={2020}
}

Spatio-Temporal Filter Adaptive Network for Video Deblurring,
Shangchen Zhou, Jiawei Zhang, Jinshan Pan, Haozhe Xie, Wangmeng Zuo, Jimmy Ren,
IEEE International Conference on Computer Vision (ICCV), 2019.

@inproceedings{zhou2019stfan,
  title={Spatio-Temporal Filter Adaptive Network for Video Deblurring},
  author={Zhou, Shangchen and Zhang, Jiawei and Pan, Jinshan and Xie, Haozhe and  Zuo, Wangmeng and Ren, Jimmy},
  booktitle={Proceedings of the IEEE International Conference on Computer Vision},
  year={2019}
}

DAVANet: Stereo Deblurring with View Aggregation,
Shangchen Zhou, Jiawei Zhang, Wangmeng Zuo, Haozhe Xie, Jinshan Pan, Jimmy Ren,
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR, Oral), 2019.

@inproceedings{zhou2019davanet,
  title={{DAVANet}: Stereo Deblurring with View Aggregation},
  author={Zhou, Shangchen and Zhang, Jiawei and Zuo, Wangmeng and Xie, Haozhe and Pan, Jinshan and Ren, Jimmy},
  booktitle={Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition},
  pages={10996--11005},
  year={2019}
}

Journal Papers

LaVie: High-Quality Video Generation with Cascaded Latent Diffusion Models,
Yaohui Wang*, Xinyuan Chen*, Xin Ma*, Shangchen Zhou, Ziqi Huang, Yi Wang, Ceuyuan Yang, Yinan He, Jiashuo Yu, Peiqing Yang, Yuwei Guo, Tianxing Wu, Chenyang Si, Yuming Jiang, Cunjian Chen, Chen Change Loy, Bo Dai, Dahua Lin^†, Yu Qiao^†, Ziwei Liu^†,
International Journal of Computer Vision (IJCV), 2024.

@inproceedings{wang2024lavie,
  title={{LaVie}: High-Quality Video Generation with Cascaded Latent Diffusion Models},
  author={Yaohui Wang and Xinyuan Chen and Xin Ma and Shangchen Zhou and Ziqi Huang and Yi Wang and Ceyuan Yang and Yinan He and Jiashuo Yu and Peiqing Yang and Yuwei Guo and Tianxing Wu and Chenyang Si and Yuming Jiang and Cunjian Chen and Chen Change Loy and Bo Dai and Dahua Lin and Yu Qiao and Ziwei Liu},
  booktitle={IJCV},
  year={2024}
}

[StableSR] Exploiting Diffusion Prior for Real-World Image Super-Resolution,
Jianyi Wang, Zongsheng Yue, Shangchen Zhou, Kelvin C.K. Chan, Chen Change Loy,
International Journal of Computer Vision (IJCV), 2024.
```
@inproceedings{wang2023stablesr,
  title={Exploiting Diffusion Prior for Real-World Image Super-Resolution},
  author={Wang, Jianyi and Yue, Zongsheng and Zhou, Shangchen and Chan, Kelvin C. K. and Loy, Chen Change},
  booktitle={arXiv:2305.07015},
  year={2023}
}
```

Research Experience

Research Fellow

Jan 2024 - Present | MMLab@NTU, Nanyang Technological University
Working with: Prof. Chen Change Loy

Research Associate

Jan 2020 - Aug 2020 | MMLab@NTU, Nanyang Technological University
Working with: Prof. Chen Change Loy

Research Intern

Aug 2018 - Aug 2019 | SenseTime Research

Academic Services

Conference and Workshop Committee

Co-organizer, 3rd Mobile Intelligent Photograph and Imaging Workshop (MIPI), CVPR 2024
Co-organizer, 2nd Mobile Intelligent Photograph and Imaging Workshop (MIPI), CVPR 2023
Co-organizer, 1st Mobile Intelligent Photograph and Imaging Workshop (MIPI), ECCV 2022

Conference Reviewer

CVPR 2024, 2023, 2022, 2021, 2020
ICCV 2023, 2021
ECCV 2022
ICLR 2021
SIGGRAPH 2024
SIGGRAPH Asia 2024
NeurIPS 2023, 2022, 2021, 2020 (Top 10% outstanding reviewer)
AAAI 2022, 2021

Journal Reviewer

IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI)
IEEE Transactions on Image Processing (TIP)
IEEE Transactions on Circuits and Systems for Video Technology (TCSVT)
International Journal of Computer Vision (IJCV)
Computer Vision and Image Understanding (CVIU)
Pattern Recognition (PR)

Teaching

NTU AI6126: Advanced Computer Vision, Teaching Assistant, Spring 2024, Spring 2023, Spring 2022, Fall 2020.
NTU CZ4042: Neural Networks and Deep Learning, Teaching Assistant, Fall 2020.
NTU CZ3004: Multi-disciplinary Design Project, Teaching Assistant, Fall 2021, Spring 2021, Fall 2020.
NTU SC1005: Digital Logic, Teaching Assistant, Fall 2022.

Jan	FEB	Apr
	23
2024	2025	2026

Shangchen Zhou

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Shangchen Zhou

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Publications [Highlight] [Full List] [Google Scholar]

Preprint Papers

Conference Papers

Journal Papers

Conference Papers

Journal Papers

Preprint Papers

Research Experience

Research Fellow

Research Associate

Research Intern

Academic Services

Conference and Workshop Committee

Conference Reviewer

Journal Reviewer

Teaching

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[Full List]

[Google Scholar]