Browsing DSP Publications by Subject "quaternions"
Now showing items 1-2 of 2
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Coherent Image Processing using Quaternion Wavelets
(2005-08-01)We develop a quaternion wavelet transform (QWT) as a new multiscale analysis tool for geometric image features. The QWT is a near shift-invariant, tight frame representation whose coefficients sport a magnitude and three ... -
Directional Hypercomplex Wavelets for Multidimensional Signal Analysis and Processing
(2004-05-01)We extend the wavelet transform to handle multidimensional signals that are smooth save for singularities along lower-dimensional manifolds. We first generalize the complex wavelet transform to higher dimensions using a ...