Title:
DEVICE AND METHOD FOR EXTENDED DEPTH OF FIELD IMAGING
Document Type and Number:
WIPO Patent Application WO/2023/113193
Kind Code:
A1
Abstract:
The invention relates to a device and method for extended depth of field imaging, the device comprising: an optical unit configured to simultaneously form intermediate images of an object at different distances with a blur effect on at least parts of the object images, and comprising at least one optical element, and having at least two pupil zones formed to provide a predetermined distribution of optical powers and aberrations within each of the at least two pupil zones, based on which point spread function is formed, defined by a curve with minimized side peaks compared to central peak in given range of object distances, each of the at least two pupil zones corresponding to a respective given range of object distances and respective given range of field angles; a sensor configured to simultaneously register intermediate images formed by the optical unit from different object distances and at different field angles; an image processing unit connected to the sensor and configured to process the blurred intermediate images of at least parts of the object images registered by the sensor, said images being processed based on the obtained point spread function over the given range of distances and field angles, and reconstruct resulting images without a blur effect at output regardless of object distances.
Inventors:
OSIPOV ALEXEY ALEKSANDROVICH (RU)
KOPYSOVA TATIANA IGOREVNA (RU)
SHLYAPIN ALEXANDER SERGEEVICH (RU)
PISKUNOV DMITRIY EVGENYEVICH (RU)
PETROVA KSENIA YURIEVNA (RU)
KOPYSOVA TATIANA IGOREVNA (RU)
SHLYAPIN ALEXANDER SERGEEVICH (RU)
PISKUNOV DMITRIY EVGENYEVICH (RU)
PETROVA KSENIA YURIEVNA (RU)
Application Number:
PCT/KR2022/016053
Publication Date:
June 22, 2023
Filing Date:
October 20, 2022
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
G06T7/557; G02B5/18; G02B27/00; G06T7/521
Domestic Patent References:
| WO2009106996A2 | 2009-09-03 |
Foreign References:
| US20060050409A1 | 2006-03-09 | |||
| US20090297056A1 | 2009-12-03 | |||
| KR101747844B1 | 2017-06-15 | |||
| EP1978394A1 | 2008-10-08 |
Attorney, Agent or Firm:
LEE, Keon-Joo et al. (KR)
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