Ja-Han Chang

Efficient implementation of quaternion Fourier transform, convolution, and correlation by 2-D complex FFT

Soo‐Chang Pei, Jian–Jiun Ding, Ja-Han Chang · IEEE Transactions on Signal Processing · 2001 · 280 citations

Quaternion Fourier Transform, Fourier Transform, Machine Vision +8

Quaternion matrix singular value decomposition and its applications for color image processing

Soo-ChangPei, Ja-Han Chang, Jian–Jiun Ding · 2004 · 78 citations

Quaternion Matrix, Engineering, Color Correction +16

Eigenvalues and Singular Value Decompositions of Reduced Biquaternion Matrices

Soo‐Chang Pei, Ja-Han Chang, Jian–Jiun Ding et al. · IEEE Transactions on Circuits and Systems I Regular Papers · 2008 · 64 citations

Spectral Theory, Rb Matrix, Image Analysis +11

Color pattern recognition by quaternion correlation

Soo‐Chang Pei, Jian–Jiun Ding, Ja-Han Chang · 2002 · 26 citations

Machine Vision, Image Analysis, Feature Detection +12

2D quaternion Fourier spectral analysis and its applications

Ja-Han Chang, Soo‐Chang Pei, Jian–Jiun Ding · 2004 · 13 citations

Spectral Theory, Image Formation, Image Analysis +12