Abstract
The incoherent optical transfer function (OTF) describes contrast degradation and phase shifts of sinusoidal objects of all spatial frequencies and orientations. The OTF is calculated as either an autocorrelation of the pupil function or the Fourier transform of the point spread function. Even with fast algorithms, these calculations can be slow for a densely sampled pupil. Here, a linear expansion of the OTF is developed in which the expansion coefficients are related to the wavefront error and apodization coefficients. The advantage of such a representation is that the OTF can be quickly generated from parameters of the optical system.
Original language | English (US) |
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Pages (from-to) | 2476-2483 |
Number of pages | 8 |
Journal | Journal of the Optical Society of America A: Optics and Image Science, and Vision |
Volume | 31 |
Issue number | 11 |
DOIs | |
State | Published - Nov 1 2014 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Computer Vision and Pattern Recognition