2021
DOI: 10.1364/prj.419886
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Non-iterative complex wave-field reconstruction based on Kramers–Kronig relations

Abstract: A new computational imaging method to reconstruct the complex wave-field is reported. Due to the existence of zero frequency component, the measured signal by amplitude modulation of pupil has a spectrum similar to the one of off-axis hologram. The mathematical analogy between them is established in this paper. Based on this observation and analyticity of band-limited signal under any diffraction-limited system, an algorithm from Kramers-Kronig (KK) relations is utilized to recover the phase information only f… Show more

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Cited by 47 publications
(23 citation statements)
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References 41 publications
(41 reference statements)
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“…The Kramers–Kronig relations connects the imaginary and real parts of a complex function, which is analyzed in the upper half‐plane (UHP). [ 37,39,57,58 ] The transformation of the real and imaginary parts of a complex function satisfiesIm[ H(r) ]=1πp.v.Refalse[ Hfalse(τfalse) false]τboldrdτwhere p.v. is Cauchy's principal value.…”
Section: Principle and Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…The Kramers–Kronig relations connects the imaginary and real parts of a complex function, which is analyzed in the upper half‐plane (UHP). [ 37,39,57,58 ] The transformation of the real and imaginary parts of a complex function satisfiesIm[ H(r) ]=1πp.v.Refalse[ Hfalse(τfalse) false]τboldrdτwhere p.v. is Cauchy's principal value.…”
Section: Principle and Methodsmentioning
confidence: 99%
“…Noniterative pupil modulation on band‐limited signal analyticity is also an effective method. [ 37 ] In‐line DH is of great research interest because it allows the reconstruction of complex wavefronts with a larger field of view (FOV), which is suitable for imaging large static or quasi‐static samples.…”
Section: Introductionmentioning
confidence: 99%
“…It leverages the analyticity of band-limited signals. Its extendibility to KKSAI has then been proved in [22].…”
Section: mentioning
confidence: 99%
“…It is not the most efficient since redundancy not necessary for KKSAI. In principle, as long as the scanning of any convex aperture covers the whole pupil and its edge crosses the origin, the scanning scheme should work for KKSAI [22]. We can choose a rectangular aperture with 2 non-overlapping measurements shown in Fig.…”
Section: Scanning Schemementioning
confidence: 99%
“…Currently, FPM has been written into the Introduction to Fourier Optics (4th edition) by Goodman [12]. Given its flexible setup without mechanical scanning and interferometric measurement, FPM has improved rapidly, and it not only acts as a tool to obtain both HR and a large FOV but is also regarded as a paradigm to solve a series of trade-off problems, including whole slide imaging [13][14][15][16][17][18], circulating tumor cell (CTC) analysis [19], high-throughput drug screening [20,21], label-free (single shot) high-throughput imaging in situ [22][23][24], retina imaging [25], 3D imaging [26][27][28], wafer detection [29], HR optical field imaging [30], optical cryptosystem [31] and remote sensing [9,32].…”
Section: Introductionmentioning
confidence: 99%