Search Results for author: Juan Han

Found 4 papers, 0 papers with code

$L_{2,1}$-Norm Regularized Quaternion Matrix Completion Using Sparse Representation and Quaternion QR Decomposition

no code implementations7 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.

Matrix Completion

Quaternion Matrix Completion Using Untrained Quaternion Convolutional Neural Network for Color Image Inpainting

no code implementations30 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.

Image Inpainting Matrix Completion

Low Rank Quaternion Matrix Completion Based on Quaternion QR Decomposition and Sparse Regularizer

no code implementations23 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).

Matrix Completion

Quaternion-based dynamic mode decomposition for background modeling in color videos

no code implementations28 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.

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