Kit Ian KOU, Anna高潔欣 Associate Professor 

Associate Professor, Department of Mathematics, Faculty of Science and Technology, University of Macau, Macao. 

Assistant Professor, Department of Mathematics, Faculty of Science and Technology, University of Macau, Macao. 

Research Fellow, Clare Hall, University of Cambridge, Cambridge United Kingdom 

Assistant Professor, Department of Mathematics, Faculty of Science and Technology, University of Macau, Macao. 

Lecturer, Department of Mathematics, Faculty of Science and Technology, University of Macau, Macao. 

Teaching Assistant, Department of Mathematics, Faculty of Science and Technology, University of Macau, Macao. 
External Grants:
Internal Grants (Principal Investigator)
Belgium:
China P.R:
Hong Kong:
Japan:
Malaysia:
Portugal:
Taiwan:
Thailand:
United Kingdom:
Australia:
Belgium:
China P.R.:
Japan:
Portugal:
Robust Sparse Representation in Quaternion Space Y Wang, KI Kou, C Zou, YY Tang IEEE Transactions on Image Processing 30, 36373649, 2021. 
Weighted Truncated Nuclear Norm Regularization for LowRank Quaternion Matrix Completion L Yang, KI Kou, J Miao arXiv preprint arXiv:2101.02443, 2021. 
Quaternion higherorder singular value decomposition and its applications in color image processing J Miao, KI Kou arXiv preprint arXiv:2101.00364, 2021. 
Controllability and Observability of Linear Quaternionvalued Systems BX Jiang, Y Liu, KI Kou, Z Wang Acta Mathematica Sinica, English Series 36 (11), 12991314, 2020. 
Quaternion block sparse representation for signal recovery and classification YYT Cuiming Zou, Kit Ian Kou∗ , Yulong Wang Signal Processing 179, 107849, 2020. 
Quaternionbased bilinear factor matrix norm minimization for color image inpainting J Miao, KI Kou IEEE Transactions on Signal Processing 68, 56175631, 2020. 
Constrained lowrank quaternion approximation for color image denoising by bilateral random projections J Miao, KI Kou arXiv preprint arXiv:2006.00749, 2020. 
Floquet theory for quaternionvalued differential equations D Cheng, KI Kou, YH Xia Qualitative Theory of Dynamical Systems 19 (1), 123, 2020. 
Multichannel interpolation of nonuniform samples with application to image recovery D Cheng, KI Kou Journal of Computational and Applied Mathematics 367, 112502, 2020. 
Quaternion Hardy Functions for Local Images Feature Representation X Hu, KI Kou, Y Ting arXiv preprint arXiv:2002.02262, 2020. 
Plancherel Theorems of Quaternion Hilbert Transforms Associated with Linear Canonical Transforms KI Kou, MS Liu, C Zou Advances in Applied Clifford Algebras 30 (1), 123, 2020. 
Lowrank quaternion tensor completion for recovering color videos and images J Miao, KI Kou, W Liu Pattern Recognition 107, 107505, 2020. 
Quaternion matrix regression for color face recognition J Miao, KI Kou arXiv preprint arXiv:2001.10677, 2020. 
A Robust Color Edge Detection Algorithm Based on Quaternion Hardy Filter W Bi, D Cheng, KI Kou arXiv preprint arXiv:2001.01800, 2020. 
From grayscale to color: Quaternion linear regression for color face recognition C Zou, KI Kou, L Dong, X Zheng, YY Tang IEEE Access 7, 154131154140, 2019. 
On the ensemble controllability of Boolean control networks using STP method J Zhong, Y Liu, KI Kou, L Sun, J Cao Applied Mathematics and Computation 358, 5162, 2019. 
Color image recovery using lowrank quaternion matrix completion algorithm J Miao, KI Kou arXiv preprint arXiv:1909.06567, 2019. 
FFT multichannel interpolation and application to image superresolution D Cheng, KI Kou Signal Processing 162, 2134, 2019. 
The inverse Fueter mapping theorem for axially monogenic functions of degree k B Dong, KI Kou, T Qian, I Sabadini Journal of Mathematical Analysis and Applications 476 (2), 819835 
^ This author is a student under my supervision when he/she completed this article.
Faculty of Science and Technology
University of Macau, E11
Avenida da Universidade, Taipa,
Macau, China
Room: E113067
Telephone: (853) 88224472
Fax: (853) 88222426
Email: kikou