摘要
图像恢复技术常用于信息安全和电子取证等领域。传统的图像恢复技术,往往通过抑制噪声的方式来对图像进行恢复,但是,这样的缺点在于图像中一些非噪声像素遭到破坏,而文章中提到的相关算法则是将信号处理系统中的随机共振演化为双稳态随机共振并将其引入到图像恢复中来,将噪声视作一种能量,从而达到图像恢复的目的。
Image recovery technique is often used in information security and forensics fields. Traditional methods for image restoration usually focuses on eliminating noises to accomplish restoring image, but for images polluted by strong noises, it is hard to achieve it in this way. Stochastic resonance can use noise to enhance signals interested in, and according to the feature, the bistable system can restore image with noises as a nonlinear signal processing device.
出处
《信息网络安全》
2011年第12期36-39,共4页
Netinfo Security
基金
浙江省教育厅项目[Y200805457]
关键词
随机共振
图像恢复
非线性共振
stochastic resonance
image restoration
nonlinear resonance
