Computationally efficient nonlinear edge preserving smoothing of n-D medical images via scale-space fingerprint analysis

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Nonlinear edge preserving smoothing often is performed prior to medical image segmentation. The goal of the nonlinear smoothing is to improve the accuracy of the segmentation by preserving changes in image intensity at the boundaries of structures of interest, while smoothing random variations due to noise in the interiors of the structures. Methods include median filtering and morphology operations such as gray scale erosion and dilation, as well as spatially varying smoothing driven by local contrast measures. Rather than irreversibly altering the image data prior to segmentation, the approach described here has the potential to unify nonlinear edge preserving smoothing ... continued below

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Reutter, B.W.; Algazi, V.R. & Huesman, R.H. October 11, 2000.

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Nonlinear edge preserving smoothing often is performed prior to medical image segmentation. The goal of the nonlinear smoothing is to improve the accuracy of the segmentation by preserving changes in image intensity at the boundaries of structures of interest, while smoothing random variations due to noise in the interiors of the structures. Methods include median filtering and morphology operations such as gray scale erosion and dilation, as well as spatially varying smoothing driven by local contrast measures. Rather than irreversibly altering the image data prior to segmentation, the approach described here has the potential to unify nonlinear edge preserving smoothing with segmentation based on differential edge detection at multiple scales. The analysis of n-D image data is decomposed into independent 1-D problems that can be solved quickly. Smoothing in various directions along 1-D profiles through the n-D data is driven by a measure of local structure separation, rather than by a local contrast measure. Isolated edges are preserved independent of their contrast, given an adequate contrast to noise ratio.

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OSTI as DE00771939

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  • 2000 IEEE Nuclear Science Symposium and Medical Imaging Conference, Lyon (FR), 10/15/2000--10/20/2000

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  • Report No.: LBNL--46941
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 771939
  • Archival Resource Key: ark:/67531/metadc724976

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  • October 11, 2000

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • Oct. 4, 2017, 1:25 p.m.

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Reutter, B.W.; Algazi, V.R. & Huesman, R.H. Computationally efficient nonlinear edge preserving smoothing of n-D medical images via scale-space fingerprint analysis, article, October 11, 2000; California. (digital.library.unt.edu/ark:/67531/metadc724976/: accessed December 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.