Ke XU

许 可

Research Fellow

City University of Hong Kong

Email: kkangwing at gmail dot com

Biography


Ke XU currently works at the City University of Hong Kong. He obtained a dual PhD in Computer Science from Dalian University of Technology and City University of Hong Kong in 2021. His research interest lies at the intersection of computer vision, computer graphics, and machine learning, where he explores advanced AI techniques to facilitate computers to see, understand, and recreate the richness of content in everyday and professional activities. His work addresses challenges of capture and learning, including imaging and building effective representations under harsh conditions (e.g., low and/or high illumination, rain, and sparse capture rigs) at varying time/scene/data scales. His research papers appear in premier venues featuring computer vision, graphics, and machine learning (e.g., CVPR/ICCV/SIGGRAPH Asia/NeurIPS).


Service/Award


Program Committee Member/Reviewer: CVPR, ICCV, ECCV, NeurIPS, ICLR, ICML, AAAI, SIGGRAPH

Journal Reviewer: IJCV, TPAMI, TIP, CGF

IJCV Outstanding Reviewer Award 2024

BMVC Best Student Paper Runner-Up Award 2020

NeurIPS Top Reviewer 2019


Selected Publications  [Google Scholar] [DBLP] [ORCID]


4D Gaussian Video with Motion Layering
Pinxuan Dai, Peiquan Zhang, Zheng Dong, Ke Xu, Yifan Peng, Dandan Ding, Yujun Shen, Yin Yang, Xinguo Liu, Weiwei Xu, Rynson Lau
ACM Trans. on Graphics (Proc. ACM SIGGRAPH, conditionally accepted), Aug. 2025
[Paper|Code]
Language-Guided Salient Object Ranking
Fang Liu, Yuhao Liu, Ke Xu, Shuquan Ye, Gerhard Hancke, Rynson Lau
Proc. IEEE CVPR, June 2025
[Paper|Code]
GhostingNet: a Novel Approach for Glass Surface Detection with Ghosting Cues
Tao Yan, Jiahui Gao, Ke Xu, Xiangjie Zhu, Hao Huang, Helong Li, Benjamin Wah, Rynson Lau
IEEE Trans. on Pattern Analysis and Machine Intelligence (TPAMI), 2025
[Paper|Code]
APANet: Asymmetrical Parallax Attention Network For Efficient Stereo Image Deraining
Chenglong Wang, Tao Yan, Weilong Huang, Xianglong Chen, Ke Xu, Xiaojun Chang
IEEE Trans. on Computational Imaging (TCI), 2025
[Paper|Code]
LuSh-NeRF: Lighting up and Sharpening NeRFs for Low-light Scenes
Zefan Qu, Ke Xu*, Gerhard Hancke, Rynson Lau
Proc. NeurIPS, Dec. 2024
[Paper|Code]
Gaussian Surfel Splatting for Live Human Performance Capture
Zheng Dong, Ke Xu, Yaoan Gao, Hujun Bao, Weiwei Xu, Rynson Lau
ACM Trans. on Graphics (Proc. ACM SIGGRAPH Asia), Dec. 2024
[Paper|Code|Video1|Video2]
Unsupervised Salient Instance Detection
Xin Tian, Ke Xu*, Rynson Lau
Proc. IEEE CVPR, June 2024
[Paper]
Color Shift Estimation-and-Correction for Image Enhancement
Yiyu Li, Ke Xu, Gerhard Hancke, Rynson Lau
Proc. IEEE CVPR, June 2024
[Paper|Project]
Effective Video Mirror Detection with Inconsistent Motion Cues
Alex Warren, Ke Xu, Jiaying Lin, Garry Tam, Rynson Lau
Proc. IEEE CVPR, June 2024
[Paper|Project]
Recasting Regional Lighting for Shadow Removal
Yuhao Liu, Zhanghan Ke, Ke Xu*, Fang Liu, Zhenwei Wang, Rynson Lau
Proc. AAAI (Oral), Feb. 2024
[Paper|Dataset&Results]
Multi-view Reflection Dynamics for Video Glass Surface Detection
Fang Liu, Yuhao Liu, Jiaying Lin, Ke Xu*, Rynson Lau
Proc. AAAI, Feb. 2024
[Paper|Code]
ZOOM: Learning Video Mirror Detection With Extremely-Weak Supervision
Ke Xu*, Tsun Wai Siu*, Rynson Lau
Proc. AAAI, Feb. 2024
[Paper]
SAILOR: Synergizing Radiance and Occupancy Fields for Live Human Performance Capture
Zheng Dong, Ke Xu, Yaoan Gao, Qilin Sun, Hujun Bao, Weiwei Xu, Rynson Lau
ACM Trans. on Graphics (Proc. ACM SIGGRAPH Asia), Dec. 2023
[Paper|Project]
Lighting up NeRF via Unsupervised Decomposition and Enhancement
Haoyuan Wang, Xiaogang Xu, Ke Xu*, Rynson Lau
Proc. IEEE ICCV, Oct. 2023
[Paper|Project]
Adaptive Illumination Mapping for Shadow Detection in Raw Images
Jiayu Sun*, Ke Xu*, Youwei Pang, Lihe Zhang, Huchuan Lu, Gerhard Hancke, Rynson Lau
Proc. IEEE ICCV, Oct. 2023
[Paper|Project]
Learning Image Harmonization in the Linear Color Space
Ke Xu, Gerhard Hancke, Rynson Lau
Proc. IEEE ICCV, Oct. 2023
[Paper|Project]
Referring Image Segmentation Using Text Supervision
Fang Liu, Yuhao Liu, Yuqiu Kong, Ke Xu*, Lihe Zhang, Baocai Yin, Gerhard Hancke, Rynson Lau
Proc. IEEE ICCV, Oct. 2023
[Paper|Project]
Camouflaged Object Segmentation with Omni Perception
Haiyang Mei, Ke Xu, Yunduo Zhou, Yang Wang, Haiyin Piao, Xiaopeng Wei, Xin Yang
International Journal of Computer Vision (IJCV), 2023
[Paper|Code]
Structure-Informed Shadow Removal Networks
Yuhao Liu, Qing Guo, Lan Fu, Zhanghan Ke, Ke Xu, Wei Feng, Ivor Tsang, Rynson Lau
IEEE Trans. on Image Processing (TIP), 2023
[Paper]
Boosting Night-time Scene Parsing with Learnable Frequency
Zhifeng Xie, Sen Wang, Ke Xu, Zhizhong Zhang, Xin Tan, Yuan Xie, Lizhuang Ma
IEEE Trans. on Image Processing (TIP), 2023
[Paper|Code]
Geometry-aware Two-scale PIFu Representation for Human Reconstruction
Zheng Dong, Ke Xu, Ziheng Duan, Hujun Bao, Weiwei Xu, Rynson Lau
Proc. NeurIPS (Spotlight), Nov. 2022
[Paper|Project]
Semantics-Adding Flaw-Erasing Network for Semantic Human Matting
Jiayu Sun, Zhanghan Ke, Ke Xu, Guofeng Zhang, Lihe Zhang, Huchuan Lu, Rynson Lau
Proc. BMVC (Oral), Nov. 2022
[Paper|Code]
Weakly-Supervised Salient Object Detection on Light Fields
Zijian Liang, Pengjie Wang, Ke Xu, Pingping Zhang, Rynson Lau
IEEE Trans. on Image Processing (TIP), 2022
[Paper]
Harmonizer: Learning to Perform White-Box Image and Video Harmonization
Zhanghan Ke, Chunyi Sun, Lei Zhu, Ke Xu, Rynson Lau
Proc. ECCV, Oct. 2022
[Paper|Code|Youtube Demo 1|Demo 2]
Local Color Distributions Prior for Image Enhancement
Haoyuan Wang, Ke Xu*, Rynson Lau
Proc. ECCV, Oct. 2022
[Paper|Project]
Mirror Detection with the Visual Chirality Cue
Xin Tan, Jiaying Lin, Ke Xu*, Pan Chen, Lizhuang Ma, Rynson Lau
IEEE Trans. on Pattern Analysis and Machine Intelligence (TPAMI), 2022
[Paper|Code]
Bi-directional Object-context Prioritization Learning for Saliency Ranking
Xin Tian, Ke Xu*, Xin Yang, Lin Du, Baocai Yin, Rynson Lau
Proc. IEEE CVPR, June 2022
[Paper|Code]
Rethinking Efficient Lane Detection via Curve Modeling
Zhengyang Feng, Shaohua Guo, Xin Tan, Ke Xu*, Min Wang, Lizhuang Ma
Proc. IEEE CVPR, June 2022
[Paper|Project]
ISDNet: Integrating Shallow and Deep Networks for Efficient Ultra-high Resolution Segmentation
Shaohua Guo, Liang Liu, Zhenye Gan, Yabiao Wang, Wuhao Zhang, Chengjie Wang,
Guannan Jiang, Wei Zhang, Ran Yi, Lizhuang Ma, Ke Xu
Proc. IEEE CVPR, June 2022
[Paper|Code]
Learning to Detect Instance-level Salient Objects Using Complementary Image Labels
Xin Tian*, Ke Xu*, Xin Yang, Baocai Yin, Rynson Lau
International Journal of Computer Vision (IJCV), 2022
[Paper|Code]
Night-time Scene Parsing with a Large Real Dataset
Xin Tan, Ke Xu*, Ying Cao, Yiheng Zhang, Lizhuang Ma, Rynson Lau
IEEE Trans. on Image Processing (TIP), 2021
[Paper|Project]
Intensity-Aware Single-Image Deraining with Semantic and Color Regularization
Ke Xu, Xin Tian, Xin Yang, Baocai Yin, Rynson Lau
IEEE Trans. on Image Processing (TIP), 2021
[Paper|Code]
Mitigating Intensity Bias in Shadow Detection via Feature Decomposition and Reweighting
Lei Zhu, Ke Xu*, Zhanghan Ke, Rynson Lau
Proc. IEEE ICCV, Oct. 2021
[Paper|Code]
Location-aware Single Image Reflection Removal
Zheng Dong, Ke Xu, Yin Yang, Hujun Bao, Weiwei Xu, Rynson Lau
Proc. IEEE ICCV, Oct. 2021
[Paper|Project]
Weakly-Supervised Salient Instance Detection
Xin Tian, Ke Xu, Xin Yang, Baocai Yin, Rynson Lau
Proc. BMVC (Oral), Sept. 2020
[Paper|Code]
Learning to Restore Low-Light Images via Decomposition-and-Enhancement
Ke Xu, Xin Yang, Baocai Yin, Rynson Lau
Proc. IEEE CVPR, June 2020
[Paper|Code|Dataset]
Where is My Mirror?
Xin Yang, Haiyang Mei, Ke Xu, Xiaopeng Wei, Baocai Yin, Rynson Lau
Proc. IEEE ICCV, Oct. 2019
[Paper|Project]
Spatial Attentive Single-Image Deraining with a High Quality Real Rain Dataset
Tianyu Wang, Xin Yang, Ke Xu, Shaozhe Chen, Qiang Zhang, Rynson Lau
Proc. IEEE CVPR, June 2019
[Paper|Code|Dataset]
Active Matting
Xin Yang*, Ke Xu*, Shaozhe Chen, Shengfeng He, Baocai Yin, Rynson Lau
Proc. NeurIPS, Dec. 2018
[Paper|Code|Dataset]
Image Correction via Deep Reciprocating HDR Transformation
Xin Yang*, Ke Xu*, Yibing Song, Qiang Zhang, Xiaopeng Wei, Rynson Lau (* joint first authors)
Proc. IEEE CVPR, June 2018
[Paper|Code|Dataset]