现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2015年
8期
22-25,30
,共5页
王军%索月%肖振东%张敏%乔晓林
王軍%索月%肖振東%張敏%喬曉林
왕군%색월%초진동%장민%교효림
手写试卷%分数求和器%图像处理%分值识别%BP神经网络
手寫試捲%分數求和器%圖像處理%分值識彆%BP神經網絡
수사시권%분수구화기%도상처리%분치식별%BP신경망락
handwritten test paper%score summer system%image processing%score value recognition%BP neural network
该设计实现了一种新型的试卷分数求和器,利用摄像头直接获取手写试卷分数栏信息,实现分数求和功能且能够自动适应不同的求分栏数目。求和器首先利用摄像头对试卷实时采样并对其进行二值化、图像定位和图像分割等预处理,然后利用BP神经网络对分割出的字符进行数字识别,最后将识别出的数字加和显示在GUI界面中。实验表明,该求和器能够以较高概率实现对手写试卷分数的自动求和,具有较大的应用前景。
該設計實現瞭一種新型的試捲分數求和器,利用攝像頭直接穫取手寫試捲分數欄信息,實現分數求和功能且能夠自動適應不同的求分欄數目。求和器首先利用攝像頭對試捲實時採樣併對其進行二值化、圖像定位和圖像分割等預處理,然後利用BP神經網絡對分割齣的字符進行數字識彆,最後將識彆齣的數字加和顯示在GUI界麵中。實驗錶明,該求和器能夠以較高概率實現對手寫試捲分數的自動求和,具有較大的應用前景。
해설계실현료일충신형적시권분수구화기,이용섭상두직접획취수사시권분수란신식,실현분수구화공능차능구자동괄응불동적구분란수목。구화기수선이용섭상두대시권실시채양병대기진행이치화、도상정위화도상분할등예처리,연후이용BP신경망락대분할출적자부진행수자식별,최후장식별출적수자가화현시재GUI계면중。실험표명,해구화기능구이교고개솔실현대수사시권분수적자동구화,구유교대적응용전경。
A novel score summer system for handwritten test paper is proposed in the paper. The summer system acquires the score information of handwritten test paper by digital camera,and then can automatically output the summation and can adap itself to different number of score?lines. The summer firstly captures the image of test paper by digital camera and then pre?process the image including binaryzation,image positioning and segmentation. The BP neural network is employed to accomplish the score value recognition based on the preprocessed result,and then the summation is displayed on GUI interface. The experi?ments based on real system show the proposed score summer system can implement automatic summation of handwritten test pa?per in high probability.