Comparison of depth of focus enhancing pupil masks based on a signal-to-noise ratio criterion after the deconvolution

Frédéric Diaz (1, 2) , François Goudail (1) , Brigitte Loiseau (2) , Jean-Pierre Huignard (2)

1 Laboratoire Charles Fabry de l'Institut d'Optique / Scop
2 Thales Research and Technology [Palaiseau]

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.

Domains: Optics [physics.optics]

Frédéric Diaz, François Goudail, Brigitte Loiseau, Jean-Pierre Huignard. Comparison of depth of focus enhancing pupil masks based on a signal-to-noise ratio criterion after the deconvolution. Journal of the Optical Society of America. A Optics, Image Science, and Vision, 2010, 27 (10), pp.2123-2131. ⟨hal-00747081⟩