gkernel {Rwave}R Documentation

Kernel for Reconstruction from Gabor Ridges

Description

Computes the cost from the sample of points on the estimated ridge and the matrix used in the reconstruction of the original signal.

Usage

gkernel(node, phinode, freqstep, scale, x.inc=1, x.min=node[1],
x.max=node[length(node)], plot=FALSE)

Arguments

node values of the variable b for the nodes of the ridge.
phinode values of the scale variable a for the nodes of the ridge.
freqstep sampling rate for the frequency axis.
scale size of the window.
x.inc step unit for the computation of the kernel.
x.min minimal value of x for the computation of Q_2.
x.max maximal value of x for the computation of Q_2.
plot if set to TRUE, displays the modulus of the matrix of Q_2.

Value

matrix of the Q_2 kernel

References

See discussions in the text of “Time-Frequency Analysis”.

See Also

fastgkernel, kernel, rkernel, fastkernel, zerokernel.


[Package Rwave version 1.24-2 Index]