Open AccessFourier ptychography algorithm based on scaled Fourier transform
Author(s) -
Hasanzade Mojde,
Hussain Nazabat,
Breiby Dag W.,
Akram Muhammad N.
Publication year - 2021
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/ell2.12081
Subject(s) - fourier transform , algorithm , zoom , ptychography , discrete fourier transform (general) , discrete time fourier transform , computer science , fractional fourier transform , resolution (logic) , short time fourier transform , non uniform discrete fourier transform , optics , fourier analysis , mathematics , artificial intelligence , physics , diffraction , mathematical analysis , lens (geology)
This letter discusses an alternative Fourier ptychography algorithm based on the scaled fast Fourier transform propagation. The advantage of this scheme is that it enables a zoom‐in capability of the object spectrum and complex pupil within the synthetic numerical aperture without increasing the overall matrix size. Thus, the high‐resolution complex object and complex pupil are recovered utilising a larger fraction of the elements in their respective representation matrices. Experimental results are presented showing the performance of this scheme against the tradition fast‐Fourier‐transform‐based approach.