no code implementations • 7 Sep 2023 • Juan Han, Kit Ian Kou, Jifei Miao, LiZhi Liu, Haojiang Li
Color image completion is a challenging problem in computer vision, but recent research has shown that quaternion representations of color images perform well in many areas.
no code implementations • 30 Apr 2023 • Jifei Miao, Kit Ian Kou, Liqiao Yang, Juan Han
To address the two drawbacks of the existing quaternion matrix completion approaches mentioned above, this paper tends to use an untrained quaternion convolutional neural network (QCNN) to directly generate the completed quaternion matrix.
no code implementations • 23 Nov 2022 • Juan Han, Liqiao Yang, Kit Ian Kou, Jifei Miao, LiZhi Liu
In contrast to the traditional quaternion matrix completion algorithms based on quaternion singular value decomposition (QSVD), we propose a novel method based on quaternion Qatar Riyal decomposition (QQR).
no code implementations • 28 Dec 2021 • Juan Han, Kit Ian Kou, Jifei Miao
In this study, we propose a quaternion-based DMD (Q-DMD), which extends the DMD by quaternion matrix analysis, so as to completely preserve the inherent color structure of the color image and the color video.