no code implementations • 4 Oct 2020 • Zhi-Gang Jia, Zi-Jin Qiu, Mei-Xiang Zhao
A generalized two-dimensional quaternion principal component analysis (G2DQPCA) approach with weighting is presented for color image analysis.
no code implementations • 19 Dec 2019 • Mei-Xiang Zhao, Zhi-Gang Jia, Yunfeng Cai, Xiao Chen, Dunwei Gong
To enhance the generalization ability of extracted features, a novel relaxed 2DPCA (R2DPCA) is proposed with a new ridge regression model.
no code implementations • 15 May 2019 • Xiao Chen, Zhi-Gang Jia, Yunfeng Cai, Mei-Xiang Zhao
A relaxed two dimensional principal component analysis (R2DPCA) approach is proposed for face recognition.
no code implementations • 10 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.