A {dualtrees} | R Documentation |
Matrices needed in order to eliminate the effect of "spectral leakage" for the local dtcwt-spectra.
A_b_bp
A_b
A list with entries N1024, N512, N256, N128, N64, N32, each containing the bias correction matrix of appropriate size.
As descibed in Nelson et al. (2018), the squared coefficients of the undecimated dtcwt (the local wavelet spectrum) can be used to obtain an estimate of local correlations in space. This estimator has a bias which mostly consists of an over-emphasis on the largest scales. It can be removed by multiplying each local spectrum with a matrix which depends only on the choice of wavelet and the dimensions of the field.
Calculated by brute force.
Nelson, J. D. B., A. J. Gibberd, C. Nafornita, and N. Kingsbury (2018) <doi:10.1007/s11222-017-9784-0>.
image( A_b_bp$N512 )