Ka Leong Cheng

Ka Leong Cheng (鄭嘉亮)

I am currently a Research Scientist at Ant Group. My current research focuses on generative AI and embodied AI.

I received my PhD degree from the Visual Intelligence Lab, part of the Department of Computer Science and Engineering at the Hong Kong University of Science and Technology (HKUST) in 2025, where I was advised by Prof. Qifeng Chen. Prior to that, I received my BEng degree in Computer Science and Engineering and BBA degree in General Business Management at the Hong Kong University of Science and Technology (HKUST) in 2020.

Email / Google Scholar / Github /

Research

* indicates joint first author; ^† indicates corresponding author

	Edicho: Consistent Image Editing in the Wild Qingyan Bai, Hao Ouyang, Yinghao Xu, Qiuyu Wang, Ceyuan Yang, Ka Leong Cheng, Yujun Shen^†, Qifeng Chen^† International Conference on Computer Vision (ICCV), 2025 arXiv / bibtex / code / project page
	MangaNinja: Line Art Colorization with Precise Reference Following Zhiheng Liu, Ka Leong Cheng, Xi Chen, Jie Xiao, Hao Ouyang, Kai Zhu, Yu Liu, Yujun Shen, Ping Luo^† Computer Vision and Pattern Recognition Conference (CVPR), 2025 Highlight Presentation** arXiv / bibtex / code / project page
	MagicQuill: An Intelligent Interactive Image Editing System Zichen Liu, Yue Yu, Hao Ouyang, Qiuyu Wang, Ka Leong Cheng, Wen Wang, Zhiheng Liu, Qifeng Chen^†, Yujun Shen^† Computer Vision and Pattern Recognition Conference (CVPR), 2025 arXiv / bibtex / code / project page
	Levitor: 3D Trajectory Oriented Image-to-Video Synthesis Hanlin Wang, Hao Ouyang, Qiuyu Wang, Wen Wang, Ka Leong Cheng, Qifeng Chen, Yujun Shen, Limin Wang^† Computer Vision and Pattern Recognition Conference (CVPR), 2025 Highlight Presentation arXiv / bibtex / code / project page
	Anidoc: Animation Creation Made Easier Yihao Meng, Hao Ouyang, Hanlin Wang, Qiuyu Wang, Wen Wang, Ka Leong Cheng, Zhiheng Liu, Yujun Shen, Huamin Qu^† Computer Vision and Pattern Recognition Conference (CVPR), 2025 arXiv / bibtex / code / project page
	Learning Naturally Aggregated Appearance for Efficient 3D Editing Ka Leong Cheng, Qiuyu Wang, Zifan Shi, Kecheng Zheng, Yinghao Xu, Hao Ouyang, Qifeng Chen^†, Yujun Shen^† International Conference on 3D Vision (3DV), 2025 arXiv / bibtex / code / project page
	Hyperthumbnail: Real-time 6K Image Rescaling with Rate-distortion Optimization Chenyang Qi, Xin Yang, Ka Leong Cheng, Ying-Cong Chen, Qifeng Chen^† Computer Vision and Pattern Recognition Conference (CVPR), 2023 arXiv / bibtex / code / project page
	Optimizing Image Compression via Joint Learning with Denoising Ka Leong Cheng, Yueqi Xie, Qifeng Chen^† European Conference on Computer Vision (ECCV), 2022 arXiv / bibtex / code
	IICNet: A Generic Framework for Reversible Image Conversion Ka Leong Cheng, Yueqi Xie, Qifeng Chen^† International Conference on Computer Vision (ICCV), 2021 arXiv / bibtex / code / presentation / supp / supp video
	Enhanced Invertible Encoding for Learned Image Compression Yueqi Xie, Ka Leong Cheng, Qifeng Chen^† ACM International Conference on Multimedia (ACM MM), 2021 Full Oral Presentation (9% acceptance rate) arXiv / bibtex / code
	Fully Convolutional Networks for Continuous Sign Language Recognition Ka Leong Cheng, Zhaoyang Yang, Qifeng Chen, Yu-Wing Tai^† European Conference on Computer Vision (ECCV), 2020 arXiv / bibtex

Experiences

Research Intern, Ant Group, 2023-2025
Junior Research Assistant, HKUST, 2020
Research Intern, Tencent YouTu X-Lab, 2019
PKU Summer School International, Peking University, 2018
Undergraduate Outbound Exchange Program, ETH Zürich, 2018
Penn Summer Global Institute, University of Pennsylvania, 2017

Honors and Awards

HKUST RedBird Academic Excellence Award for Continuing PhD Students, 2022-2024
Hong Kong PhD Fellowship Award, 2020-2024
Hong Kong University of Science and Technology Academic Achievement Medal, 2020
Technology and Management Elite Student Scholarship, 2019
High Fashion Charitable Foundation Exchange Scholarship, 2017
Shanghai Commercial Bank Scholarship, 2016
University's Scholarship Scheme for Continuing Undergraduate Students, 2016, 2018, 2019

Teaching Assistants

COMP 3111: Software Engineering (Fall 2021)
COMP 1001: Exploring Multimedia and Internet Computing (Spring 2021)

Thank You ⭐ Dr. Jon Barron ⭐