Put Matrix into Sparse Nonstandard Form
NS = Mat2SparseNSForm(M,L,qmf,epsilon)
Matrix to be be put in Sparse Nonstandard Form, (n by n array, n dyadic)
Coarsest Resolution Level
quadrature Mirror Filter
Truncation Criterion
sparse nonstandard form of matrix, 2n by 2n
The matrix M is transformed into the wavelet basis. Then it is stretched into nonstandard form. Elements exceeding epsilon * maximum column norm are set to zero. NS is the resulting sparse matrix. NS can be used as input to NonStdWaveMult.