VLSI Implementation of a fast rank order filtering algorithm

@article{Harber1985VLSIIO,
  title={VLSI Implementation of a fast rank order filtering algorithm},
  author={Ronald G. Harber and Steven Craig Bass and Gerold W. Neudeck},
  journal={ICASSP '85. IEEE International Conference on Acoustics, Speech, and Signal Processing},
  year={1985},
  volume={10},
  pages={1396-1399}
}
A useful class of digital filters is the rank order filter, of which the median filter is the most popular. This paper details the NMOS IC design of a 6-bit rank order filter based upon the approach of Fitch, Coyle, and Gallagher. The chip provides for programmable window lengths of 3, 5, 7, and 9; the selection of any element in the rank order; operation in the nonrecursive or recursive modes; and the ability to function in a "ganged" mode so that two or more identical chips can accommodate… CONTINUE READING

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