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)
Arguments
nbnodes
number of samples.
Value
- Returns a list containing the discrete values of the ridge.
- nodetime coordinates of the ridge samples.
- phinodefrequency coordinates of the ridge samples.
Details
Gabor ridges are sampled uniformly.References
See discussions in the text of "Time-Frequency Analysis''.