优化综合滤波方法抑制医学图像强脉冲干扰噪声的研究

A research on reducing pulse noise in medicine image based on optimized synthetical filter method

为了抑制医学图像上的强脉冲干扰噪声等污染,并尽量保持图像的清晰度和细节边缘信息,在滤除强脉冲干扰的基础上,提出了一种利用灰度级形态学运算有机结合来滤除医学图像中椒盐噪声的新方法。该综合方法不仅能滤除强脉冲干扰,而且克服了灰度级形态学在椒盐噪声概率高时,达不到有效滤噪的缺点。实验表明,该方法可以有效滤除医学图像强脉冲干扰和椒盐噪声。

In order to reduce the interference of the intense pulse noise in the medicine images and keep the definition of image and detail edge information, a new method of eliminating the interference of the intense pulse noise in medicine image based on the combination of the optimized synthetical filter is presented in the paper, which is carried out after the interference of the intense pulse been gotten rid of. The method can overcome the shortage of low-efficiently of gray-level morphology when the probability of salt ＆ pepper noise is high. Experiments show that the method can reduce the intense pulse interference and salt ＆ pepper noise in medicine image efficiently.