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 computer science crazy Super Moderator Posts: 3,048 Joined: Dec 2008 22-02-2009, 12:38 AM INTRODUCTION Cellular Neural Network is a revolutionary concept and an experimentally proven new computing paradigm for analog computers. Looking at the technological advancement in the last 50 years ; we see the first revolution which led to pc industry in 1980â„¢s, second revolution led to internet industry in 1990â„¢s cheap sensors & mems arrays in desired forms of artificial eyes, nose, ears etc. this third revolution owes due to C.N.N.This technology is implemented using CNN-UM and is also used in imageprocessing.It can also implement any Boolean functions. ARCHITECTURE OF CNN A standard CNN architecture consists of an m*n rectangular array of cells c(i,j) with Cartesian coordinates (i,j) i=1,2Â¦..M, j=12Â¦...N. A class -1 m*n standard CNN is defined by a m*n rectangular array of cells cij located at site (i,j) i= 1,2 Â¦Â¦.m ,j=1,2,Â¦.n is defined mathematically by (dXij/dt )= -Xij + A(I,j,k,l) Ykl + B(i,j,k,l) + Zij ELECTRONIC CIRCUIT MODEL OF CNN Voltage controlled current sources impliment various coupling terms. These transconductances can be easily constructed on CMOS integrated circuits CNN TEMPLATES EDGE DETECTION TEMPLATE Local rules 1. White pixel- white, independent of neighbours 2. Black pixel- white , if all nearest neighbours are black 3. Black pixel- black , if at least one nearest neighbour is white 4. Black, gray or white pixel-gray if nearest neighbours are gray SIMPLICAL CNN Recently a novel structure has been introduced to implement any Boolean / gray level function of any number of variables .The output is no longer restricted to be binary so that CNNs with gray scale outputs are obtained. Simplical CNNs are implemented using RTDs (resonant tunneling diodes) A simplical partition is used to subdivide the domain in to convex regions called simplices which are the natural extension 2-d triangle into an n-d space the corners of these simplices are called vertices & for the particular chosen domain are the points of the form ( +1,-1,+1,-1) it was proven that the set of all PWL function f is a linear vector space. Every PWL function can be expressed as a linear combination Download Full Report And Abstract Download Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion