Enhanced Extended Depth-of-Field Microscopy via modeling of SLM effects on the applied phase mask

2014 ◽  
Author(s):  
Md Shohag Hossain ◽  
Sharon V. King ◽  
Chrysanthe Preza
Keyword(s):  
Phase Mask ◽  
Depth Of Field ◽  
Extended Depth Of Field

An extended depth-of-field imaging system with a non-rotationally symmetric phase mask

2018 ◽  
Vol 89 (10) ◽  
pp. 103101 ◽  
Author(s):  
Hongbo Xie ◽  
Lirong He ◽  
Lei Yang ◽  
Chensheng Mao ◽  
Meng Zhu ◽  
...  
Keyword(s):  
Imaging System ◽  
Phase Mask ◽  
Depth Of Field ◽  
Rotationally Symmetric ◽  
Extended Depth Of Field ◽  
Field Imaging ◽  
Symmetric Phase

scholarly journals Investigation of extended depth-of-field f/8 camera with optimized cubic phase mask and digital restoration

2020 ◽  
Vol 238 ◽  
pp. 03008
Author(s):  
Po-Sheng Chiu ◽  
Kurt Vonmetz ◽  
Federico Canini ◽  
H. Paul Urbach
Keyword(s):  
Mean Squared Error ◽  
Imaging System ◽  
Optimal Solution ◽  
Phase Mask ◽  
Depth Of Field ◽  
Cubic Phase ◽  
Modulation Transfer ◽  
Original Design ◽  
Digital Restoration ◽  
Extended Depth Of Field

An investigation of extended depth-of-field camera with optimized phase mask and digital restoration is presented. The goal of this paper is to implement the wavefront coding technique without affecting much of the original design, and the design has taken the complexity of imaging system into consideration. The optimized strength of cubic phase mask (CPM) is based on the analytical optimal solution for the task-based imaging system [J. Opt. Soc. Am. A 25, 1064 (2008)]. The noisy intermediate images of CPM system with highest spatial frequency of interest can be effectively restored by vector-based Richardson-Lucy algorithm. Restoration from the system with generalized CPM produces precise image position than the system with CPM does. In general, the CPM system procures modulation transfer function higher than 0.195 in the whole depth-of-field, and the mean squared error of the restored images are less than 5 %.

scholarly journals An optimal binary amplitude-phase mask for hybrid imaging systems that exhibit high resolution and extended depth of field

2008 ◽  
Vol 16 (25) ◽  
pp. 20540 ◽  
Author(s):  
Eyal Ben-Eliezer ◽  
Naim Konforti ◽  
Benjamin Milgrom ◽  
Emanuel Marom
Keyword(s):  
High Resolution ◽  
Hybrid Imaging ◽  
Imaging Systems ◽  
Phase Mask ◽  
Depth Of Field ◽  
Extended Depth Of Field

3-D reconstruction by extended depth-of-field in failure analysis – Case study I: Qualitative fractographic investigation of fractured bolts in a partial valve

2010 ◽  
Vol 17 (2) ◽  
pp. 515-520 ◽  
Author(s):  
Luis Rogerio de Oliveira Hein ◽  
Kamila Amato de Campos ◽  
Pietro Carelli Reis de Oliveira Caltabiano ◽  
Ana Lúcia Horovistiz
Keyword(s):  
Failure Analysis ◽  
Depth Of Field ◽  
Fractographic Investigation ◽  
Extended Depth Of Field

scholarly journals Two-photon microscopy with simultaneous standard and extended depth of field using a tunable acoustic gradient-index lens

2009 ◽  
Vol 34 (11) ◽  
pp. 1684 ◽  
Author(s):  
Nicolas Olivier ◽  
Alexandre Mermillod-Blondin ◽  
Craig B. Arnold ◽  
Emmanuel Beaurepaire
Keyword(s):  
Depth Of Field ◽  
Gradient Index ◽  
Two Photon Microscopy ◽  
Two Photon ◽  
Gradient Index Lens ◽  
Extended Depth Of Field
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