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BuildSkelMapFast

Chain together Ridges of Wavelet Transform

Calling Sequence

[skellist,skelptr,skellen] = BuildSkelMapFast(maxmap)

Parameters

Inputs:

maxmap:

matrix MMWT

Outputs:

skellist :

storage for list of chains

skelptr :

vector of length nchain -- pointers to head of chain

skellen :

vector of length nchain -- length of skellists

Description

A chain is a list of maxima at essentially the same position across a range of scales. It is identified from the maxmap data structure output by WTMM by finding a root at coarse scales and identifying the closest maxima at the next finest scale. NO PROVISION IS MADE FOR 'terminating' A CHAIN before the finest scale is reached.

nchain = len(skellen) chains are found. A chain data structure is a list of scale-location pairs All chains are stored together in skellist. The k-th list begins in skellist at skelptr(k) The k-th list has length skellen(k)

See also

Authors

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