CAJ | 학술논문

　　针对低质量的手指静脉图像，提出一种小波域静脉图像滤波增强算法。首先采用小波变换，然后对其低频系数进行频域增强，最后进行小波逆变换得到增强后的图像。实验表明：该方法能很好地抑制噪声，准确定位图像边缘信息，大大的改善了图像的质量，提高了图像的特征提取准确性和识别精度，使图像取得很好的增强效果。
　　침대저질량적수지정맥도상，제출일충소파역정맥도상려파증강산법。수선채용소파변환，연후대기저빈계수진행빈역증강，최후진행소파역변환득도증강후적도상。실험표명：해방법능흔호지억제조성，준학정위도상변연신식，대대적개선료도상적질량，제고료도상적특정제취준학성화식별정도，사도상취득흔호적증강효과。
According to the low?quality images of finger vein,a vein image filtering enhancement algorithm in the wavelet domain is proposed. In the algorithm,the wavelet transform is used,the parameter of the low frequency is enhanced in the frequency domain,and then the inverse wavelet transform is adopted to achieve the enhanced image. The experimental results show that the method can suppress noise perfectly,locate the image edge information accurately,improve the quality of image significantly,and enhance the extraction veracity of image features and identification accuracy. The algorithm obtained perfect efforts of image enhancement.