I am currently a Ph.D candidate with VIP Lab, Academy for Engineering and Technology, the State Key Laboratory of ASIC and System, Fudan University, mentored by Prof. Xiaoyang Zeng , Prof. Yibo Fan at Fudan University , and Dr. Heming Sun at Waseda University. My research interests include traditional and learned image/video compression, which is the cornerstone of multimedia technology in the 5G era.

Sep 2018 - now, Ph.D. candidate, Circuit and System, Fudan University.

Jan 2016 - Jul 2016, Exchange student, Electrical Engineering, Zhejiang University.

Sep 2014 - Jul 2018, Bachelor, Electrical Engineering, Harbin Institute of Technology.

Chao Liu, Heming Sun, Jiro Katto, Xiaoyang Zeng and Yibo Fan. "Learned Video Compression with Residual Prediction and Loop Filter", arXiv preprint arXiv:2108.08551, 2021 (accepted by ICIP2022).[PDF]

Chao Liu, Heming Sun, Jiro Katto, Xiaoyang Zeng and Yibo Fan. "QA-Filter: A QP-Adaptive Convolutional Neural Network Filter for Video Coding", in IEEE Transactions on Image Processing, vol. 31, pp. 3032-3045, 2022, doi: 10.1109/TIP.2022.3152627.[PDF]

Chao Liu, Heming Sun, Jiro Katto, Xiaoyang Zeng and Yibo Fan. "An Efficient Low-Complexity Convolutional Neural Network Filter", in IEEE MultiMedia, doi: 10.1109/MMUL.2022.3159372.[PDF]

Aorui Gou, Chao Liu, Heming Sun, Xiaoyang Zeng, and Yibo Fan. "A-A KD: Attention and Activation Knowledge Distillation", 2021 IEEE Seventh International Conference on Multimedia Big Data (BigMM), 2021, pp. 57-60, doi: 10.1109/BigMM52142.2021.00016.[PDF]

Chao Liu, Heming Sun, Jiro Katto, Xiaoyang Zeng and Yibo Fan. "A QP-adaptive Mechanism for CNN-based Filter in Video Coding", arXiv preprint arXiv:2010.13059, 2020 (accepted by ISCAS2022).[PDF]

Zhao Zan, Chao Liu, Heming Sun, Xiaoyang Zeng, and Yibo Fan. "Learned Image Compression with Separate Hyperprior Decoders", IEEE Open Journal of Circuits and Systems, Volume:2, Page(s): 627 - 632, 22 November 2021.[PDF]

Heming Sun, Chao Liu, Jiro Katto and Yibo Fan. "An Image Compression Framework with Learning-based Filter", Proc. IEEE Conference on Computer Vision and Pattern Recognition (CVPR), Workshop, 2020. [PDF]

Chao Liu, Heming Sun, Jiro Katto, Xiaoyang Zeng and Yibo Fan. "A Learning-Based Low Complexity In-loop Filter for Video Coding", Proc. IEEE International Conference on Multimedia and Expo (ICME), Workshop, 2020. [PDF]

Chao Liu, Heming Sun, Junan Chen, Zhengxue Cheng, Masaru Takeuchi, Jiro Katto, Xiaoyang Zeng, and Yibo Fan. "Dual learning-based video coding with inception dense blocks", Proc. Picture Coding Symposium (PCS), 2019. [PDF]

Winning Award for "Malanshan Cup" International Audio and Video Algorithm Optimization Competition (8/315), 2020.

Silver Award of Picture Coding Symposium (PCS) Grand Challenge, 2019.

First Prize & Huawei Special Award of National Post-Graduate Mathematical Contest in Modeling (10/781), 2019.

Group Bronze Award, National Sudoku Challenge for College Students, 2017.

First Prize in Heilongjiang Division in National Undergraduate Electronics Design Contest, 2017.

Second Prize of COMAP's Mathematical Contest in Modeling (MCM), 2017.

Second Prize in Heilongjiang Division in National University Mathematical Modeling Competition, 2016.

Third Prize of TI Cup Undergraduate Electronics Design Contest, 2016.

First Prize of Freshman Year Project, 2015.

Graduate Student Scholarship, 2019, 2020, 2021.

People Scholarship, 2015, 2016.

UHV Scholarship (2%), 2015.

Rank 2-ed (PSNR index) and 6-th (Subjective Quality index) for CVPR Challenge on Learned Image Compression (CLIC-2020), entry: VIP-ICT-Codec

Reviewer for PCS, VCIP, IEEE ACCESS.

Teaching Assistant (TA) for Signals and Systems, Fudan University.

Programming: Python, C/C++.

Software/Toolbox: MATLAB, Keras/Tensorflow, Pytorch.

Tools: Git, Latex, FFmpeg, Cmake/gcc, Anaconda, Docker.

Enjoy learning and thinking, which makes me keep improving.

Love music, sometimes practice singing and playing guitar.

Like fitness and hiphop-style dancing, although I'm not good at it.

Like playing board games with my friends, which makes me relaxed.