摘要
结合指纹图像高频丰富的特点,以及小波包分析高频分辨率高的特性,采用小波包分析对指纹图像进行初滤波。实验表明,该方法对含高斯白噪声的指纹图像取得了较好的滤波效果。
Given that the high ratio of wavelet package high frequency resolution meets the features of fingerprint containing abundant high frequency,preliminary filtration of fingerprint image is done by means of wavelet package analysis,and good result is achieved when the method is used for fingerprint image containing gauss white noise.
出处
《上海电机学院学报》
2005年第5期70-73,共4页
Journal of Shanghai Dianji University
关键词
小波变换
多分辨率分析
小波包分析
wavelet transform
multi-resolution
wavelet package analysis
