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Research On The Application Of Product Identity Graphics In Food Traceability Based On Fractal Theory

Posted on:2018-08-23Degree:MasterType:Thesis
Country:ChinaCandidate:S W LiuFull Text:PDF
GTID:2381330566954216Subject:Engineering
Abstract/Summary:PDF Full Text Request
Food safety is a matter of popular concern to the people.In recent years,frequent food safety accidents have made people worried about food safety issues.This article want to solve this problem,fractal theory is one of the leading scientific research achievements in graphic imaging,and we introduce it into the field of food safety traceability.Based on this,we design a highly efficient product identity generation algorithm.The logo graphics with good practicality,graphic appearance,anti-counterfeiting effect is much better than the common product identity logo.The application identifies graphic food safety traceability system.We find a new approach,which solve an increasingly serious food safety problem.In this paper,the research work as follows:First,analyze the characteristics of several classical fractal graphics generation algorithms,(1)L system fractal tree generation algorithm is extremely sensitive to the generation rules,Generate rules for a slight change can be a substantial change in the resulting fractal graphics structure;(2)IFS system to generate fractal graphics mainly depends on the parameter matrix,we can change in IFS codes and probability parameters make the variability of fractal graphics varied;(3)The fractal recursive tree generation algorithm generates a fractal pattern that depends on the number of iterations.Second,according to the actual needs put forward a suitable product identity logo graphics generation algorithm.Based on the improved fractal recursive tree algorithm to generate product identity logo pattern.Experimental results show,that as long as the number of parameters to determine,the algorithm can quickly generate fractal patterns in the specified area.Us ing this method,it is only necessary to determine the number of parameters contained in the parameter group,the change interval of the parameters and the number of iterations to generate different fractal shapes by iteration as the identity identification pattern of the product.In order to facilitate verification of the authenticity of the product identity,using the specified device to deflect the image after correction,identify the identity logo pattern to get a parameter matrix.Finally,the parameter matrix and the chip's global unique code for comparison index.According to the above model can not only achieve the fractal graphics batch production.Thirdly,according to the actual demand put forward the establishment of food safety traceability system.Based on the actual production demand,this paper designs the food traceability system which uses the fractal pattern as the product identity identification as the product counterfeiting means.In th is paper,the project background and technology are described,Detailed analys is of the analys is to the project needs.Fractal graphics with the sensitivity of the parameters determined by the application of fractal theory generated product identity logo graphics with excellent anti-counterfeiting effect,fake cost is great,but the production cost is low,applied to the field of food safety traceability has a huge advantage.Beautiful fractal graphics add the fun to the product.
Keywords/Search Tags:product identification, fractal graphics, food traceability system, fractal algorithm, product security
PDF Full Text Request
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