A LINEAR APPROACH TO METRIC CIRCUMFERENCE COMPUTATIO FOR DIGITIZED CONVEX SHAPES  

A LINEAR APPROACH TO METRIC CIRCUMFERENCE COMPUTATION FOR DIGITIZED CONVEX SHAPES

作　　者：Chen Ken Zhao Pan Yang Rener 

机构地区：[1]College of Information Science and Engineering, Ningbo University, Ningbo 315211, China

出　　处：《Journal of Electronics(China)》2008年第4期572-575,共4页电子科学学刊（英文版）

基　　金：the Ningbo Natural Science Foundation(No.2006A610016);the Foundation of National EducationMinistry for Returned Overseas Students&Scholars(SRFfor ROCS,SEM.No.2006699).

摘　　要：Metric measurement of digitized shapes is commonly applied in optical measuring systems.In this letter,three shape-related factors defined by the authors are used in the construction of amultiple linear regression model which is utilized to compute the circumference of the convex shapes inmillimeter unit.The model is first built upon the relationship hypothesis and then its adequacy ismathematically validated.The results of applying the developed model to the given number of convexshapes in a finite circumferential length range suggest that,in terms of percent error,the model pre-cision is to satisfaction by being within±4%.The test also shows the model’s robustness against theshape’s orientation anisotropy.Metric measurement of digitized shapes is commonly applied in optical measuring systems.In this letter,three shape-related factors defined by the authors are used in the construction of a multiple linear regression model which is utilized to compute the circumference of the convex shapes in millimeter unit.The model is first built upon the relationship hypothesis and then its adequacy is mathematically validated.The results of applying the developed model to the given number of convex shapes in a finite circumferential length range suggest that,in terms of percent error,the model precision is to satisfaction by being within±4%.The test also shows the model’s robustness against the shape’s orientation anisotropy.

关 键 词：Metric measurement Circumference computation Digital image analysis Modeling 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]