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

Alleviating image artifacts in wavefront coding extended depth of field imaging system

2019 ◽  
Vol 436 ◽  
pp. 232-238
Author(s):  
Xutao Mo ◽  
Tao Zhang ◽  
Bin Wang ◽  
Xianshan Huang ◽  
Cuifang Kuang ◽  
...  
Keyword(s):  
Imaging System ◽  
Depth Of Field ◽  
Image Artifacts ◽  
Wavefront Coding ◽  
Extended Depth Of Field ◽  
Field Imaging

Measurement of the Object Defocus with Extended Depth-of-field Imaging System

2018 ◽  
Vol 47 (10) ◽  
pp. 1011003
Author(s):  
周亮 ZHOU Liang ◽  
刘朝晖 LIU Zhao-hui ◽  
单秋莎 SHAN Qiu-sha ◽  
折文集 SHE Wen-ji
Keyword(s):  
Imaging System ◽  
Depth Of Field ◽  
Extended Depth Of Field ◽  
Field Imaging

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 %.

All-optical extended depth of field imaging system

2003 ◽  
Vol 5 (5) ◽  
pp. S164-S169 ◽  
Author(s):  
Eyal Ben-Eliezer ◽  
Zeev Zalevsky ◽  
Emanuel Marom ◽  
Naim Konforti
Keyword(s):  
Imaging System ◽  
Depth Of Field ◽  
All Optical ◽  
Extended Depth Of Field ◽  
Field Imaging

Extended depth-of-field imaging through radially symmetrical conjugate phase masks

2015 ◽  
Vol 54 (11) ◽  
pp. 115103 ◽  
Author(s):  
Shouqian Chen ◽  
Van Nhu Le ◽  
Zhigang Fan ◽  
Hong Cam Tran
Keyword(s):  
Depth Of Field ◽  
Extended Depth Of Field ◽  
Field Imaging

Aspheric optical elements for extended depth-of-field imaging

1995 ◽  
Author(s):  
Joseph van der Gracht ◽  
Edward R. Dowski, Jr. ◽  
W. Thomas Cathey, Jr. ◽  
John P. Bowen
Keyword(s):  
Depth Of Field ◽  
Optical Elements ◽  
Extended Depth Of Field ◽  
Field Imaging

Optimized non-integer order phase mask to extend the depth of field of an imaging system

2016 ◽  
Vol 374 ◽  
pp. 92-96 ◽  
Author(s):  
Jiang Liu ◽  
Erlong Miao ◽  
Yongxin Sui ◽  
Huaijiang Yang
Keyword(s):  
Imaging System ◽  
Phase Mask ◽  
Depth Of Field ◽  
Integer Order
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