數(shù)字字符識(shí)別廣泛的應(yīng)用到汽車(chē)牌照識(shí)別,大規(guī)模數(shù)據(jù)統(tǒng)計(jì),財(cái)務(wù)、稅務(wù)等金融領(lǐng)域和郵件分揀等領(lǐng)域中。隨著國(guó)家信息化進(jìn)程的加速,手寫(xiě)數(shù)字識(shí)別的應(yīng)用需求將越來(lái)越廣泛,因此應(yīng)當(dāng)加強(qiáng)這方面的研究工作。數(shù)字字符識(shí)別的方法有很多種,比如基于基于最小錯(cuò)誤率Bayes決策和最小風(fēng)險(xiǎn)的Bayes決策,基于獨(dú)立分量分析,人工神經(jīng)網(wǎng)絡(luò)等方法。
本論文設(shè)計(jì)是基于最小錯(cuò)誤率Bayes決策和最小風(fēng)險(xiǎn)的Bayes決策的手寫(xiě)數(shù)字字符分類。在Visual C++ 6.0的環(huán)境下,利用MFC開(kāi)發(fā)出模擬手寫(xiě)環(huán)境,通過(guò)對(duì)手寫(xiě)數(shù)字字符的位置定位及其特征的提取,并利用基于最小錯(cuò)誤率Bayes決策或最小風(fēng)險(xiǎn)的Bayes決策相關(guān)的理論知識(shí),計(jì)算出相應(yīng)判別函數(shù)和損失函數(shù)的值,并實(shí)現(xiàn)對(duì)0到9模擬手寫(xiě)字符的分類。
關(guān)鍵字:Visual C++ 6.0,Bayes決策,數(shù)字字符識(shí)別。
Abstract
Figure recognition is widely used in license screening, large scale data analysis, financial and tax fields and mail sorting. With the acceleration of information development, handwriting figure recognition is in great need, and related research should be stressed. There are many methods of figure recognition, such as Bayes decision of minimal false rate and Bayes decision of least risk, based on individual part analysis, and artificial intellectual network.
The design included in this essay is based on figure recognition of bayes decision of minimal false rate and that of least risk. In the environment of Visual C++ 6.0, we use MFC to develop mimic handwriting situation to get the result of discrimination function and loss function and to realize the categorization of figures 0 to 9 through locating handwriting figures and the traction of related characteristics as well as bayes decision of minimal false rate and least risk.
Keywords:Visual C++ 6.0, Bayes decision, Figure recognition