计算机科学 ›› 2013, Vol. 40 ›› Issue (8): 316-318.

• 图形图像与模式识别 • 上一篇    

多尺度特征和神经网络相融合的手写体数字识别

赵元庆,吴华   

  1. 安阳师范学院计算机与信息工程学院 安阳455000;安阳师范学院公共计算机教学部 安阳455000
  • 出版日期:2018-11-16 发布日期:2018-11-16
  • 基金资助:
    本文受国家自然科学基金青年基金项目(41001251)资助

Handwritten Numeral Recognition Based on Multi-scale Features and Neural Network

ZHAO Yuan-qing and WU hua   

  • Online:2018-11-16 Published:2018-11-16

摘要: 针对传统特征提取方法无法有效解决书写随意性的干扰问题,提出了一种多尺度特征和神经网络相融合的手写体数字识别方法。首先提取手写体数字二值图像的轮廓、笔画次序等结构特征,并旋转坐标轴,提取多角度结构特征;然后将字符从中心点到外边框划分为K层矩形子层,提取每层图像的灰度特征,最后以两种多尺度特征构建神经网络模型,并预测测试集合样本。将该算法实际用于以MNIST字体库构建的两个数据集识别,其精度高达99.8%,并能有效降低倾斜等手写字体的随意性影响。

关键词: 多尺度,手写体数字识别,多角度结构特征,多层次灰度特征

Abstract: Aiming at the problem that tradition handwritten numeral recognition method can not solve the interference from writing arbitrary,a new handwritten numeral recognition method was proposed based on nmulti-scale features and neural network.Firstly,two structural features of outline and strokes were extracted,and multi-angle structural features were extracted by rotating the datum line.Second,Multi-level grayscale pixel features were extracted by dividing the ima-ge to K sub-layer from the inside out.Thirdly,BP neural network model was build based on the two features.Lastly,new method was used for The MNIST font library,and the prediction precision reached 99.8%.The result shows that new algorithm can effectively reduce the impact of tilt.

Key words: Multi-scale,Handwritten numeral recognition,Multi-angle structural features,Multi-level grayscale pixel features

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