摘要
由于设备环境、人为因素等诸多原因造成的散焦退化图像,在天文、交通、医疗等众多领域的实际应用效果受到较大程度的影响。针对散焦模糊图像的盲复原技术进行研究,以探索一种较好的散焦模糊图像盲复原方法。在退化图像的复原过程中,点扩展函数(Point Spread Function)的参数估计最为关键。因此,文中提出的散焦模糊图像复原方法,基于频域倒谱及其相关特性,进行散焦模糊图像的PSF估计。通过仿真实验表明,该算法可以较为准确地估计出散焦模糊图像的模糊半径,实验证明了估计结果的准确性以及对模糊图像恢复的有效性。可以得出结论:利用倒谱相关性对散焦模糊图像进行盲复原,是一条切实可行的研究路线。
Defocused images caused by equipment environmental and artificial factors,are greatly restricted in application to areas such as astronomy,transportation,medical,etc.Mainly aims at blind restoration techniques of defocused images,to explore a better blind recovery method of defocused images.In the restoration techniques of degraded images,parameter estimation of Point Spread Function（PSF） plays a vital role.Based on the related characteristics of cepstrum,gave a new method to estimate the parameter of PSF and to restore the defocused images.Through some simulation experiments,it shows that this algorithm can accurately estimate the fuzzy radius of defocused images.And the experimental result shows that it is effective.So can draw a conclusion that cepstrum correlation is a feasible research route in blind restoration of defocused images.
出处
《计算机技术与发展》
2011年第4期98-100,104,共4页
Computer Technology and Development
基金
江苏省产学研前瞻性联合研究项目(by20091005)
