Convolution, deconvolution, and mean field annealing suitable for analog VLSI

Author

Bilbro, Griff L. ; Hall, Lester C. ; Clements, Mark ; Liu, Wentai

Author_Institution

Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA

Volume

46

Issue

2

fYear

1999

fDate

2/1/1999 12:00:00 AM

Firstpage

120

Lastpage

128

Abstract

We formulate several standard digital image processing operations as circuits suitable for implementation in real-time analog VLSI, including nonlinear piecewise-constant image restoration using mean field annealing as a global optimization technique. We report test results from an imaging chip that performs user-controlled convolution of the image. We use simulated results for mean field annealing (MFA) in SPICE to show that deconvolution could be implemented by rearranging the subcircuits that perform the corresponding convolution. We report the results of realizing deconvolution in this way on a printed circuit board

Keywords

SPICE; VLSI; analogue processing circuits; convolution; deconvolution; image restoration; piecewise constant techniques; simulated annealing; SPICE; convolution; deconvolution; digital image processing; global optimization; imaging chip; mean field annealing; nonlinear piecewise-constant image restoration; printed circuit board; real-time analog VLSI; Circuit simulation; Circuit testing; Convolution; Deconvolution; Digital images; Image restoration; Performance evaluation; SPICE; Simulated annealing; Very large scale integration;

fLanguage

English

Journal_Title

Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1057-7130

Type

jour

DOI

10.1109/82.752912

Filename

752912