Title :
A unified approach to implementation of stack filters
Author :
Astola, J. ; Akopian, D. ; Agaian, S. ; Vainio, O.
Author_Institution :
Signal Process. Lab., Tampere Univ. of Technol., Finland
fDate :
31 Oct-2 Nov 1994
Abstract :
New stack filter architectures are proposed. Known architectures are considered from new positions and combined to obtain new structures with suitable complexities and throughputs. It is shown that all stack filters can be used without changes when the input data is represented in one of the binary lexicographic codes. Stack filters are also proposed for the cases where the data are represented in multiple-value lexicographic codes. The class of pipeline-parallel structures for common stack filters is simple and modular in structure, and suitable for VLSI implementation. The time-area complexity of the proposed filters is O(k), where k is the number of bits in the input signals
Keywords :
VLSI; digital filters; nonlinear filters; parallel architectures; pipeline processing; VLSI; binary lexicographic codes; complexities; filter architectures; implementation; input data; multiple-value lexicographic codes; pipeline-parallel structures; stack filters; throughput; time-area complexity; Arithmetic; Boolean functions; Circuits; Filters; Graphics; Laboratories; Signal processing; Sorting; Throughput; Very large scale integration;
Conference_Titel :
Signals, Systems and Computers, 1994. 1994 Conference Record of the Twenty-Eighth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-6405-3
DOI :
10.1109/ACSSC.1994.471470
