J. Weickert,
Multiscale texture enhancement,
V. Hlavac, R. Sara (Eds.),
Computer analysis of images and patterns,
Lecture Notes in Computer Science, Vol. 970, Springer, Berlin,
230-237, 1995.
The ideas of texture analysis by means of the structure tensor are
combined with the scale-space concept of anisotropic diffusion filtering.
In contrast to many other nonlinear diffusion techniques, the proposed
one uses a diffusion tensor instead of a scalar diffusivity. This allows
true anisotropic behaviour.
The preferred diffusion direction is determined according to the phase
angle of the structure tensor. The diffusivity in this direction is
increasing with the local coherence of the signal. This filter is
constructed in such a way that it gives a mathematically well-funded
scale-space representation of the original image.
Experiments demonstrate its usefulness for the processing of interrupted
one-dimensional structures such as fingerprint and fabric images.
The full paper is available
online as well.
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