Title :
Design and implementation of a general purpose VLSI median filter unit and its applications
Author :
Karaman, Mustafa ; Onural, Levent ; Atalar, Abdullah
Author_Institution :
Dept. of Electr. & Electron. Eng., Bilkent Univ., Ankara, Turkey
Abstract :
A VLSI median filter unit has been designed and implemented in 3-μm M2CMOS, using full-custom VLSI design techniques. The unit consists of two single-chip median filters, one extensible and one real-time. The chips are bit-level pipelined systolic structures based on odd/even transposition sorting. The extensible chip is designed for applications requiring variable window sizes and variable word-lengths, whereas the other one is for real-time applications. Various median filtering techniques are easily realized by using the designed chips together with reasonable external hardware
Keywords :
CMOS integrated circuits; VLSI; digital filters; 3 micron; M2CMOS; bit-level pipelined systolic structures; extensible; full-custom VLSI design; general purpose VLSI median filter unit; odd/even transposition sorting; real-time; single-chip median filters; variable window sizes; variable word-lengths; Adaptive filters; Filtering; Hardware; Image edge detection; Nonlinear filters; Smoothing methods; Software performance; Software standards; Sorting; Very large scale integration;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on
Conference_Location :
Glasgow
DOI :
10.1109/ICASSP.1989.266987
