On the relation between the wave aberration function and the phase transfer function for an incoherent imaging system with circular pupil

Utkin, Andrei B.; Vilar, R.; Smirnov, Alexandre J.

doi:10.1007/s100530170016

Cited by 2 publications

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“…Systems for which the PSF is symmetric and centered about the ideal image point (as in traditional diffractionlimited imagers) exhibit zero PTFs across the optical spatial frequency bandwidth, while a simple shift of the PSF from this ideal image point results in a lin-ear PTF along the optical bandwidth. It has been shown that even-order aberrations do not affect the PTF, whereas odd-order aberrations produce asymmetric PSFs and consequently nonlinear PTFs [11,12]. The relation between the PSF, MTF, and PTF is shown in Fig.…”

Section: Phase Transfer Function Of Digital Incoherent Imaging Systemsmentioning

confidence: 99%

Applications of the phase transfer function of digital incoherent imaging systems

2012

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The phase of the optical transfer function is advocated as an important tool in the characterization of modern incoherent imaging systems. It is shown that knowledge of the phase transfer function (PTF) can benefit a diverse array of applications involving both traditional and computational imaging systems. Areas of potential benefits are discussed, and three applications are presented, demonstrating the utility of the phase of the complex frequency response in practical scenarios. In traditional imaging systems, the PTF is shown via simulation results to be strongly coupled with odd-order aberrations and hence useful in misalignment detection and correction. In computational imaging systems, experimental results confirm that the PTF can be successfully applied to subpixel shift estimation and wavefront coding characterization tasks.

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Section: Phase Transfer Function Of Digital Incoherent Imaging Systemsmentioning

confidence: 99%