Search Results for author: Zhigang Jia

Found 5 papers, 0 papers with code

Quasi Non-Negative Quaternion Matrix Factorization with Application to Color Face Recognition

no code implementations30 Nov 2022 Yifen Ke, Changfeng Ma, Zhigang Jia, Yajun Xie, Riwei Liao

Numerical results indicate that the accuracy rate of face recognition on the quaternion model is better than on the red, green and blue channels of color image as well as single channel of gray level images for the same data, when large facial expressions and shooting angle variations are presented.

A contribution to condition numbers of the multidimensional total least squares problem with linear equality constraint

no code implementations17 Dec 2020 Qiaohua Liu, Zhigang Jia, Yimin Wei

All expressions and upper bounds of these condition numbers unify the ones for the single-dimensional TLSE problem and multidimensional total least squares problem.

Numerical Analysis Numerical Analysis 65F35

Non-Local Robust Quaternion Matrix Completion for Color Images and Videos Inpainting

no code implementations17 Nov 2020 Zhigang Jia, Qiyu Jin, Michael K. Ng, XiLe Zhao

A new patch group based NSS prior scheme is proposed to learn explicit NSS models of natural color images.

Matrix Completion SSIM +1

On condition numbers of the total least squares problem with linear equality constraint

no code implementations19 Aug 2020 Qiaohua Liu, Zhigang Jia

This paper is devoted to condition numbers of the total least squares problem with linear equality constraint (TLSE).

Numerical Analysis Numerical Analysis 65F35

Sample-Relaxed Two-Dimensional Color Principal Component Analysis for Face Recognition and Image Reconstruction

no code implementations10 Mar 2018 Mei-Xiang Zhao, Zhigang Jia, Dunwei Gong

A sample-relaxed two-dimensional color principal component analysis (SR-2DCPCA) approach is presented for face recognition and image reconstruction based on quaternion models.

Face Recognition Image Reconstruction

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