2020/01-now, I join in the MMLab@NTU as a research fellow and work with Dr. Chen Change Loy, School of Computer Science and Engineering, Nanyang Technological University (NTU), Singapore.

2018/10-2020/01, I was a postdoctoral fellow and worked with Chair Prof. Sam Kwong (IEEE Fellow), Department of Computer Science, City University of Hong Kong (CityU), Kowloon, Hong Kong.

2016/12-2017/12, I was a joint Ph.D. student at Research School of Engineering, Australian National University (ANU), Canberra, Australia, under the supervision of Prof. Fatih Porikli (IEEE Fellow).

2014/09-2018/07, I was a Ph.D. student at School of Electrical and Information Engineering, Tianjin University (TJU), Tianjin, China, under the supervision of Prof. Jichang Guo.

Research Interests:

My primary reseach interests include image processing, computer vision, and deep learning, particularly in the domains of

Image and video restoration and enhancement The purpose is to develop algorithms to process an image or video so that result is more suitable than original image or video for specific application. The specific research topics are

1. restoring and enhancing the images and videos captured in adverse weather (hazy, foggy, sandy, dusty, rainy, snowy day)
2. restoring and enhancing the images and videos captured in special circumstances or devices (underwater, weak illumination, dark, under-display devices)
3. general photo enhancement, auto image retouching
4. image/depth super-resolution, image debluring, image denosing

Salient object detection The purpose is to design AI models to perceivce and understand scenes. The specific research topics are

1. RGB-D salient object detection
2. co-salient object detection
3. remote sensing image salient object detection

Recent News:

• 2021/04 -- One paper has been accepted by IEEE Transactions on Image Processing
• 2021/04 -- 6th, NTIRE 2021 Challenge on Non-Homogeneous Image Dehazing
• 2021/04 -- One paper has been accepted by IEEE Geoscience and Remote Sensing Letters (IF: 3.833)
• 2021/04 -- One paper has been accepted by Applied Intelligence (IF: 3.325)
• 2021/03 -- One book chapter has been published in World Scientific
• 2021/03 -- One paper has been accepted by IEEE Transactions on Pattern Analysis and Machine Intelligence (IF: 17.861)
• 2021/03 -- One paper hits on CVPR 2021
• 2021/01 -- One paper has been selected as ESI Highly Cited Paper
• 2021/01 -- One paper has been accepted by Engineering Applications of Artificial Intelligence (IF: 3.526)
• 2021/01 -- One paper has been accepted by Frontiers of Computer Science (IF: 1.940)
• 2021/01 -- I am nominated with honor to serve as an Associate Editor of the Springer Journal of Signal, Image and Video Processing (IF: 1.794).
• 2020/12 -- Two papers have been selected as ESI Highly Cited Paper
• 2020/12 -- One paper has been accepted by Information Science
• 2020/10 -- 2020 National Postdoctoral Forum on the Development and Application of Artificial Intelligence. Excellence Award
• 2020/10 -- One paper has been accepted by IEEE Transactions on Image Processing
• 2020/09 -- One paper has been accepted by NeurIPS
• We released a survey about image colorization (Image Colorization: A Survey and Dataset). [Arxiv Version]
• Chongyi Li, Runmin Cong, Yongri Piao, Qianqian Xu, and Chen Change Loy, RGB-D Salient Object Detection with Cross-Modality Modulation and Selection is accepted by ECCV2020. [Project page]
• We release the testing code of our Zero-DCE for low-light image enhancement (CVPR 2020). You can find the [Code]. Have fun!

Projects:

Removing Diffraction Image Artifacts in Under-Display Camera via Dynamic Skip Connection Network CVPR, 2021
Ruicheng Feng, Chongyi Li, Huaijin Chen, Shuai Li, Chen Change Loy, Jinwei Gu.
PDF| Project Page| Code

Learning to Enhance Low-Light Image via Zero-Reference Deep Curve Estimation TPAMI, 2021
Chongyi Li, Chunle Guo, Chen Change Loy.
PDF| Project Page| Code

Zero-Reference Deep Curve Estimation for Low-Light Image Enhancement CVPR, 2020
Chunle Guo*, Chongyi Li*, Jichang Guo, Chen Change Loy, Junhui Hou, Sam Kwong, Runmin Cong.
PDF| Project Page| Code

RGB-D Salient Object Detection with Cross-Modality Modulation and Selection ECCV, 2020
Chongyi Li, Runmin Cong, Yongri Piao, Qianqian Xu, Chen Change Loy.
PDF| Project Page| Code

NuI-Go: Recursive Non-Local Encoder-Decoder Network for Retinal Image Non-Uniform Illumination Removal ACM MM, 2020
Chongyi Li, Huazhu Fu, Runmin Cong, Zechao Li, Qianqian Xu.
PDF| Project Page| Code

An Underwater Image Enhancement Benchmark Dataset and Beyond TIP, 2020
Chongyi Li, Chunle Guo, Wenqi Ren, Runmin Cong, Junhui Hou, Sam Kwong, Dacheng Tao.
PDF| Project Page| Benchmark| Code

Nested Network With Two-Stream Pyramid for Salient Object Detection in Optical Remote Sensing Images TGARS, 2020
Chongyi Li, Runmin Cong, Junhui Hou, Sanyi Zhang, Yue Qian, Sam Kwong.
PDF| Project Page| Benchmark| Results

Underwater Scene Prior Inspired Deep Underwater Image and Video Enhancement PR, 2020
Chongyi Li, Saeed Anwar, Fatih Porikli.
PDF| Project Page| Code

ASIF-Net: Attention Steered Interweave Fusion Network for RGB-D Salient Object Detection TCyb, 2020
Chongyi Li, Runmin Cong, Sam Kwong, et al.
PDF| Code and Results

CoADNet: Collaborative Aggregation-and-Distribution Networks for Co-Salient Object Detection NeurIPS, 2020
Qijian Zhang, Runmin Cong, Junhui Hou, Chongyi Li, and Yao Zhao.
PDF| Project Page

Dense attention fluid network for salient object detection in optical remote sensing images TIP, 2020
Qijian Zhang, Runmin Cong, Chongyi Li, Ming-Ming Cheng, Yuming Fang, Xiaochun Cao, Yao Zhao, and Sam Kwong.
PDF| Project Page Dataset

Hierarchical Features Driven Residual Learning for Depth Map Super-Resolution TIP, 2019
Chunle Guo*, Chongyi Li*, Jichang Guo, Runmin Cong, Huazhu Fu, Ping Han.
PDF| Project Page| Code

Call for Papers:

• Special Issue on Depth-Related Processing and Applications in Visual Systems, Multimedia Tools and Applications (SCI, IF: 2.101) [CFP]. Submission Deadline: November 1, 2020. [Offical Link]
[Closed]
• Special Issue on Visual Information Processing for Underwater Images and Videos: Theories, Algorithms, and Applications in Signal Processing : Image Communication (SCI, IF: 2.814) [CFP]. Submission Deadline: July 31, 2020. [Offical Link]
[Closed]
• Special Session in Asia-Pacific Signal and Information Processing Association Annual Summit and Conference(APSIPA ASC) 2019. [Link]: Special Session on Multi-source Data Processing and Analysis: Models, Methods and Applications [CFP]
[Closed]