Transcription of Optical Transfer Function (OTF) Modulation Transfer ...
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Optical System Design S15 MTF Joseph A. Shaw montana State university Optical Transfer Function (OTF) Modulation Transfer Function (MTF) The Optical Transfer Function (OTF) is a complex-valued Function describing the response of an imaging system as a Function of spatial frequency. Modulation Transfer Function (MTF) = magnitude of the complex OTF Phase Transfer Function (PTF) = phase of the complex OTF 1 , = , , Incoherent imaging systems are linear in irradiance Coherent imaging systems are linear in field amplitude Optical System Design S15 MTF Joseph A. Shaw montana State university Spatial frequency Two commonly used resolution bar targets (NBS & USAF) illustrate a variety of low and high spatial frequencies [lines/mm]. 2 Optical System Design S15 MTF Joseph A.
Optical System Design – S15 MTF Joseph A. Shaw – Montana State University Linear Shift-Invariant (LSI) systems Shift invariance means that the output of an optical system is the same at all spatial points. However, we know that this is fundamentally not true for aberrated optical systems, which means we need to use LSI systems theory with ...
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