Phase aberration compensation of digital holographic microscopy based on least squares surface fitting

Di, Jianglei; Zhao, Jianlin; Sun, Weiwei; Jiang, Hongzhen; Yan, Xiaobo

doi:10.1016/j.optcom.2009.06.049

Cited by 96 publications

(50 citation statements)

References 16 publications

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“…46 As explained above, this drawback, which is caused by the residual quadratic phase factor, can be numerically removed a posteriori via a variety of procedures. [33][34][35][36] The most utilized methods for removing the residual phase factor are based on polynomial fitting of areas selected from the raw phase where the contribution of object to the phase map is constant. 35,36 This condition imposes the need of areas of the FOV free of sample information, which means a significant reduction of the usable FOV.…”

Section: Qpi-dhm For Biological Specimensmentioning

confidence: 99%

“…The raw phase maps, Figs. 4(b) and 4(e), have larger areas from which the data for phase compensation can be extracted, which leads, after the usual series of a posteriori operations, 35,36 to the corrected phase map for the nontelecentric DHM shown in Fig. 4(c).…”

Section: Qpi-dhm For Biological Specimensmentioning

confidence: 99%

“…Different numerical methods have been proposed to remove a posteriori these effects. [33][34][35][36] However, even after applying such methods, it is common to find a remaining phase factor that still perturbs the QPI measurement. In addition to that remaining phase factor, when the recording setup operates in the nontelecentric mode, 31 the DHM is shift-variant.…”

Section: Introductionmentioning

confidence: 99%

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Accurate single-shot quantitative phase imaging of biological specimens with telecentric digital holographic microscopy

et al. 2014

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Abstract. The advantages of using a telecentric imaging system in digital holographic microscopy (DHM) to study biological specimens are highlighted. To this end, the performances of nontelecentric DHM and telecentric DHM are evaluated from the quantitative phase imaging (QPI) point of view. The evaluated stability of the microscope allows single-shot QPI in DHM by using telecentric imaging systems. Quantitative phase maps of a section of the head of the drosophila melanogaster fly and of red blood cells are obtained via single-shot DHM with no numerical postprocessing. With these maps we show that the use of telecentric DHM provides larger field of view for a given magnification and permits more accurate QPI measurements with less number of computational operations. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Section: Qpi-dhm For Biological Specimensmentioning

confidence: 99%

Section: Qpi-dhm For Biological Specimensmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Accurate single-shot quantitative phase imaging of biological specimens with telecentric digital holographic microscopy

et al. 2014

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“…Another group of compensation methods, as mentioned above, is based on numerical postprocessing. Roughly speaking, fittingbased numerical methods involve in the use of different polynomials such as standard polynomials, 17,18 digital phase mask, 19,20 and Zernike polynomials. 17,21 By solving a least-squares problem 19,21 or a phase variation minimization problem, 20 the aberration surface is thus fitted and then subtracted from the phase map, resulting in a pure object phase finally.…”

Section: Introductionmentioning

confidence: 99%

Automatic compensation of phase aberrations in digital holographic microscopy based on sparse optimization

2019

Self Cite

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“…Colomb et al [6,7] proposed to compute phase polynomial masks, called numerical parametric lenses, whose parameters are automatically adjusted by fitting standard polynomials or Zernike polynomials to manual selected 1D profiles or 2D areas extracted from the unwrapped phase where a constant phase is assumed. Others methods correct the curvature automatically by two dimensional fitting of the unwrapped phase signal to a parabolic surface [8,9] or Zernike polynomials [10]. In the Ref.…”

Section: Introductionmentioning

confidence: 99%

An automatic wrapped phase gradient-based method for spherical aberration correction in Digital Holographic Microscopy

Monaldi¹,

Romero²,

Blanc³

et al. 2018

Opt. Pura Apl.

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Most digital holographic microscopy architectures introduce a microscope objective in the object arm of the micro-interferometer in order to increase lateral resolution but, as a consequence, a spherical phase aberration arises. The phase distortion must be corrected to achieve reliable phase information linked to the microscopic object under study. In this work, we present a fast and simple numerical method for automatically compensate the phase curvature from the wrapped phase gradient of the reconstructed hologram. Since non-unwrapping methods are required, computational cost is significantly reduced. Furthermore, no additional holograms recording is needed and it does not require prior knowledge of the object or the setup. The method is experimentally demonstrated by a phase contrast imaging of a Pediastrum cell.Key words: phase curvature, digital holographic microscopy, Optical phase aberration, wrapped phase RESUMEN:La mayoría de los montajes experimentales utilizados en microscopía holográfica digital introducen un objetivo de microscopio en el brazo objeto del miro-interferómetro con el objetivo de aumentar la resolución lateral; sin embargo, como consecuencia, aparece una aberración de fase esférica que debe corregirse para acceder al retardo de fase que experimenta es espécimen microscópico bajo estudio. En este trabajo se presenta un método rápido y simple para corregir numéricamente la curvatura de fase a partir del gradiente del mapa de fase envuelto del holograma reconstruido. Dado que no se requiere el empleo de métodos de desenvolvimiento de fase, los costos computacionales son notablemente reducidos. Adicionalmente, no se precisa del registro de hologramas adicionales, ni del conocimiento previo del objeto bajo estudio o del arreglo experimental. El método se demuestra experimentalmente a partir del holograma de una microalga del género Pediastrum.

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Phase aberration compensation of digital holographic microscopy based on least squares surface fitting

Cited by 96 publications

References 16 publications

Accurate single-shot quantitative phase imaging of biological specimens with telecentric digital holographic microscopy

Accurate single-shot quantitative phase imaging of biological specimens with telecentric digital holographic microscopy

Automatic compensation of phase aberrations in digital holographic microscopy based on sparse optimization

An automatic wrapped phase gradient-based method for spherical aberration correction in Digital Holographic Microscopy

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