摘要
现有的医学图像大都存在信号噪声大的特性,传统的图像增强算法在图像增强的同时,放大了图像的噪声信号,效果不能令人满意。本文在现有的图像小波分析增强算法的基础上,提出了利用梯度模值的多尺度小波图像增强新方法。实验证明,该方法在提高图像对比度的同时,有效的解决了通常对比度增强算法中难以克服的噪声放大问题,处理后的图像更利于医生进行分析诊断和医学影像的后续处理。
Because the noises of medical images are larger, conventional MRI image enhancement arithmetic will enhance noise signals of theoriginal image. By improving image enhancement arithmetic based on wavelet transform, the new image enhancement method basedon multi-scale wavelet transform was put forward on the paper. The conclusion show that we can improve the contrast of image andresolve the problem of the noise magnified by dealing with grads module values, which is hard to process by the common arithmetic,so the image can have better definition after disposal, thus the doctors can analyze the image more clearly and the medical image canbe processed unceasingly.
出处
《中国医疗器械信息》
2004年第4期9-11,共3页
China Medical Device Information
