侯宏花, 陈树越, 郭保全. Application of Wavelet Analysis in the Enhancement of the SARS Chest Radiographic Image[J]. 2004, (5): 371-373.DOI:
小波分析在SARS胸片图像增强中的应用
摘要
通过对非典型肺炎的胸部X线图像的特征分析
提出采用小波分析方法
对图像做小波变换
提取各层小波分解系数
利用阈值法对各系数作去噪预处理
然后再利用阈值法对各系数做衰减或增强处理
最后重构出清晰图像.结果显示
用此方法处理的非典型肺炎胸部X线图像
效果较好
既增强了图像对比度
又不损失细节信息
为医生鉴别诊断疾病提供了清晰影像依据.
Abstract
According to the feature of the SARS Chest Radiographic Images
the wavelet analysis method is put forward to dispose the SARS images and the wavelet coefficients are picked up. After the wavelet threshold noise reducing and the wavelet threshold enhancing disposure to the each of the wavelet coefficients
the clear images are reconstructed at last. The result is that the image qualities of SARS are all improved. Not only the image contrasts are enhanced
but also the details are not lost. It offered the clear images for the doctors to diagnose disease.