Extended depth-of field imaging by both radially symmetrical conjugating phase masks with spatial frequency post-processing

2018 ◽  
Vol 411 ◽  
pp. 80-87 ◽  
Author(s):  
L.V. Nhu ◽  
Cuifang Kuang ◽  
Xu Liu
Keyword(s):  
Spatial Frequency ◽  
Depth Of Field ◽  
Post Processing ◽  
Extended Depth Of Field ◽  
Field Imaging

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

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

The Optimal Radius Calculation and Error Analyses of the “0,π” Phase Pupil Mask

2013 ◽  
Vol 278-280 ◽  
pp. 50-53
Author(s):  
Qing Hua Lv ◽  
Xiao Zhu ◽  
Zhong Bao Xu ◽  
Zhong Sheng Zhai ◽  
Shuang Zou
Keyword(s):  
Spatial Frequency ◽  
Imaging System ◽  
The Other ◽  
Depth Of Field ◽  
Post Processing ◽  
Image System ◽  
High Quality ◽  
Error Analyses ◽  
Optical Imaging System ◽  
Optimal Radius

Abstract. A diffraction limited circularly symmetric optical imaging system with “0,π” phase pupil mask was studied, which extended depth of field. The optimal radiuses of the mask in the different amount of defocus are calculated, which in a certain contrast value 0.05 and 0.1, can provide the largest spatial frequency band. On the other hand, the effect of mask manufacturing error is analyzed, and the performance of the simulation imaging system has been verified experimentally that the image system still can obtain the high quality output images even without any post-processing.

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 Extended depth-of-field imaging and ranging in a snapshot

Optica ◽  
2014 ◽  
Vol 1 (4) ◽  
pp. 209 ◽  
Author(s):  
Paul Zammit ◽  
Andrew R. Harvey ◽  
Guillem Carles
Keyword(s):  
Depth Of Field ◽  
Extended Depth Of Field ◽  
Field Imaging
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