Tree-structured nonlinear filters in digital mammography

  title={Tree-structured nonlinear filters in digital mammography},
  author={Wei Qian and Laurence P. Clarke and Maria Kallergi and Robert A. Clark},
  journal={IEEE transactions on medical imaging},
  volume={13 1},
A new class of nonlinear filters with more robust characteristics for noise suppression and detail preservation is proposed for processing digital mammographic images. The new algorithm consists of two major filtering blocks: (a) a multistage tree-structured filter for image enhancement that uses central weighted median filters as basic sub-filtering blocks and (b) a dispersion edge detector. The design of the algorithm also included the use of linear and curved windows to determine whether… CONTINUE READING
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