基于Db小波与中值滤波的安检图像噪声消除算法  

Enhancement processing on Security Inspection Image Based on Db Wavelet Transform and median Filtering

作　　者：韩裕生[1] 卢伟[1] 刘菡[1] 李从利[1] 

机构地区：[1]解放军炮兵学院四系,合肥230031

出　　处：《CT理论与应用研究（中英文）》2005年第1期7-10,共4页Computerized Tomography Theory and Applications

摘　　要：设置成像安检系统是机场等重要场所通常采用的安全措施。根据CT安检图像既含高斯白噪声又含脉冲噪声的特点,运用将Db小波变换与中值滤波相结合的综合去噪方法,以同时滤除高斯噪声和脉冲噪声,以获得更好的视觉效果。To setup imaging security inspection system is a common safety measure used in such important place as airport. According to the properties of noise in CT security inspection image, a method combining Db wavelet transform and median filtering is applied to cancel both Guass white noise and pulse noise, to get better visual results.

关 键 词：CT成像 图像去噪 Db小波变换 中值滤波 

分 类 号：TN911.73[电子电信—通信与信息系统]