Abstract
I propose a diffusion process that operates on the jet-space of an image. This process uses variable conductance diffusion as an alternative to Gaussian scale in order to smooth differential measurements in a manner that preserves structures of interest. The process is presented within a general framework that suggests a wide range of possibilities for segmenting images on the basis of homogeneity of local shape. Previous work has shown how first-order geometry is used to locate ridges and valleys in greyscale objects. In this paper I use apply these principles to first and second-order geometry in order to find boundaries and skeletons of objects. Examples of first and second-order segmentations of medical images are given. This method appears to offer a reliable and accurate means of segmenting images and is shown to preserve the orthogonal group properties of properly constructed geometric invariants.
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© 1993 Springer-Verlag Berlin Heidelberg
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Whitaker, R.T. (1993). Characterizing first and second-order patches using geometry-limited diffusion. In: Barrett, H.H., Gmitro, A.F. (eds) Information Processing in Medical Imaging. IPMI 1993. Lecture Notes in Computer Science, vol 687. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0013786
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DOI: https://doi.org/10.1007/BFb0013786
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