Design and implementation of a general purpose VLSI median filter unit and its applications
Author
Karaman, Mustafa
Onural, Levent
Atalar, Abdullah
Date
1989Source Title
Proceedings of the International Conference on Acoustics, Speech, and Signal Processing, IEEE 1989
Print ISSN
0736-7791
Publisher
IEEE
Pages
2548 - 2551
Language
English
Type
Conference PaperItem Usage Stats
176
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132
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Abstract
A VLSI median filter unit has been designed and implemented in 3-μ m M2 CMOS, 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
Image processingVery large scale integration
Median filter
Smoothing methods
VLSI design
Adaptive filters