基于人工神经网络的手写识别系统.doc
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1、第1章 绪论学 号 密 级 基于人工神经网络的手写识别系统Handwriting Recognition System Based on Artificial Neural Network学生姓名:所在学院:所在专业:指导教师:职 称:所在单位:论文提交日期:论文答辩日期:学位授予单位:摘要信息技术的快速发展,计算机迅速走进人们的生活,手写识别技术和应用领域越来越广泛,比如在移动设备上、文印工作中都离不开它的身影,极大的方便了人们的日程生活、工作、学习,因此手写识别具有很强的应用价值和实用价值。本文中利用神经网络算法识别数字图像和手写汉字。识别的前提是获得稳定的神经网路,需要通过大量的训练样本
2、进行训练。针对数字图像首先对图像进行处理,通过灰度化、二值化、中值滤波、梯度锐化、归一化等算法获得特征矩阵,然后用经过训练的神经网路算法识别需要识别的特侦矩阵,进而获得识别的结果。针对汉字识别,首先处理图像获得特征矩阵,通过经过训练的神经网络的识别获得笔画,然后用笔画去识别汉字,最后获得识别的汉字以及联想汉字和词组。经过测试和验证,基于人工神经网络的手写识别系统能够有效识别数字手写图像与手写汉字,在本文选用的一些测试文字与数字图像的识别上获得了不错的结果。关键词:手写识别;图像处理;神经网络ABSTRACTThe rapid development of information technol
3、ogy makes the computer immediately appear in peoples lives. The application of handwriting recognition technology becomes widespread, and there are more and more application areas. For example, we can see it on a mobile deviceand in the printing work. It makes peoples daily life, work and learning m
4、ore convenient. Therefore, the handwriting recognition has very strong applied value and practical value.In this article, the writer uses neural network to identify digital image and handwriting Chinese ideogram. The premise of recognition is to obtain a stable neural network and a great deal of sam
5、ple training is needed. For digital image, we need to process the images, and get characteristic matrix through a series of algorithms, including graying, linearization, Median filter, gradient sharpening and normalization.For Chinese ideogram recognition,we should gain a characteristic matrix by pr
6、ocessing images, and then get painting pen through the training neural network identification.Next, we use painting pen to recognize Chinese ideogram.At last, the Chinese ideogram and associative Chinese characters and phrases will be obtained.After testing and verification, handwriting recognition
7、which is based on artificial neural network system can effectively identify the handwriting image and Chinese ideogram. We obtain satisfying results in the identification test on words and digital image.Key words: Handwriting recognition;image processing;neural networkI目录第1章 绪论11.1 课题研究的背景11.2 课题研究的
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