Diaz Frédéric, Goudail François, Loiseaux Brigitte, Huignard Jean-Pierre
Thales Research & Technology, 1 Avenue Augustin Fresnel, 91767 Palaiseau Cedex, France.
J Opt Soc Am A Opt Image Sci Vis. 2010 Oct 1;27(10):2123-31. doi: 10.1364/JOSAA.27.002123.
We consider optimization of hybrid imaging systems including a pupil mask for enhancing the depth of field and a digital deconvolution step. In a previous paper [Opt. Lett. 34, 2970 (2009)] we proposed an optimization criterion based on the signal-to-noise ratio of the restored image. We use this criterion in order to optimize different families of phase or amplitude masks and to compare them, on an objective basis, for different desired defocus ranges. We show that increasing the number of parameters of the masks allows one to obtain better performance.
我们考虑对混合成像系统进行优化，该系统包括用于增强景深的光瞳掩膜和数字去卷积步骤。在之前的一篇论文[《光学快报》34, 2970 (2009)]中，我们提出了一种基于恢复图像信噪比的优化准则。我们使用该准则来优化不同类型的相位或幅度掩膜，并在客观基础上针对不同的期望散焦范围对它们进行比较。我们表明，增加掩膜的参数数量能够获得更好的性能。
