中文摘要：

随机共振具有利用噪声增强信号的特点，因此它可用于强噪声背景下的图像复原，以改善目标图像的视觉效果。该文提出了含噪图像的级联随机共振处理方法，它以分段线性系统作为图像信号处理器，把信噪比改善因子作为图像复原质量的定量评价指标。实验结果表明，级联随机共振复原方法能有效抑制图像中的噪声，提高图像质量。

英文摘要：

Stochastic resonance can use noise to enhanced signal, so it can be used in the restoration of the image with strong noise, to improve the visual effect of the image. We put forward the cascading stochastic resonance method for restoring image with noise, which uses piecewise linear stochastic resonance system as image signal processor, and the promotion signal-to-noise ratio as quantitative index. Results show that the image restoration method proposed by this paper can effectively suppress the noise, and improve image quality.