Joint diagonalization for a pair of Hermitian quaternion matrices and applications to color face recognition
Signal Processing(2022)
摘要
•A structure-preserving joint diagonalization algorithm is designed for quaternion matrices.•The proposed joint diagonalization algorithm leads to a novel 2D-QLDA method.•2D-QLDA is superior to other methods in color face recognition and image reconstruction.•A new measurement is defined that helps to avoid generating projected images explicitly.
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关键词
Hermitian quaternion matrix,Structure-preserving algorithm,Joint diagonalization,Face recognition,Linear discriminant analysis
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