InsightSoftwareConsortium / ITKIsotropicWavelets

External Module for ITK, implementing Isotropic Wavelets and Riesz Filter for multiscale phase analysis.
Apache License 2.0
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Rename current StructureTensor, append ImageFilter #62

Closed phcerdan closed 3 years ago

phcerdan commented 7 years ago

@jhlegarreta raised in #56 that the current StructureTensor name is misleading.

It is a filter that computes a Structure Tensor per pixel but also computes the eigensystem of the tensor. It outputs a matrix with the eigenvectors and eigenvalues per pixel

We should:

For more info about the tensor: StructureTensor in wikipedia. The input there is a function I, they calculate its gradient, and do a eigensystem analysis. Here is the same framework but the input is instead a vector of images, not a function (could be a vector with directional derivatives --the gradient--, or the Riesz responses, or any other directional measurements).

In the current ImageFilter we do this calculation for every pixel, and could be slow for large number of inputs, see #61.