一个医学图像分类器的设计  

The Design of a Medical Images Classifier

作　　者：李丙春[1] 耿国华[1] 周明全[1] 孙蕾[1] 

机构地区：[1]西北大学计算机系,西安710069

出　　处：《计算机工程与应用》2004年第17期230-232,共3页Computer Engineering and Applications

基　　金：国家自然科学基金项目(编号:60271032)资助

摘　　要：提出了一个基于径向基函数网络的医学图像分类器。该系统包括图像预处理、特征提取、分类器的构造几个部分。在网络构造上,文章采用了自适应的网络结构调整技术,提高了网络的泛化能力,同时,在网络权值调节上采用了具有全局优化的模拟退火算法,避免了陷入局部极小的缺陷。实验结果表明,该模型系统达到了76.6%的准确率,辅助系统可以极大地提高医学图像分类的效率和准确性。This paper proposes a medical images classifier based on radial basis function neural network.The system we propose consists of a pre-processing phase,a feature extraction phase and a building the classifier phase.The system uses adaptive network structure adjustment techniques to improve the generalization capability of the network.At the same time ,to keep the network from getting into local minimum the system uses simulated annealing with feature of global optimize to adjust the network weight.The experimental results show that the system performs well reaching about 76.6%in accuracy.With the help of the system physicians can improve efficiency and accuracy in the medical image classification.

关 键 词：径向基函数网络 图像分类 模拟退火算法 医学图像 乳腺X线照片 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]