RidgeSampling: Sampling Gabor Ridge
Description
Given a ridge phi (for the Gabor transform), returns a
(regularly) subsampled version of length nbnodes.
Usage
RidgeSampling(phi, nbnodes)
Value
Returns a list containing the discrete values of the ridge.
- node
time coordinates of the ridge samples.
- phinode
frequency coordinates of the ridge samples.
Arguments
- phi
ridge (1D array).
- nbnodes
number of samples.
Details
Gabor ridges are sampled uniformly.
References
See discussions in the text of "Time-Frequency Analysis''.