Optical transfer function
Characteristic of an optical system
Optical transfer function
The optical transfer function (OTF) of an optical system such as a camera, microscope, human eye, or projector is a scale-dependent description of their imaging contrast. Its magnitude is the image contrast of the harmonic intensity pattern, 1 + cos ( 2 π ν ⋅ x ) {\displaystyle \textstyle 1+\cos(2\pi \nu \cdot x)} , as a function of the spatial frequency, ν {\displaystyle \nu } , while its complex argument indicates a phase shift in the periodic pattern. The optical transfer function is used by optical engineers to describe how the optics project light from the object or scene onto a photographic film, detector array, retina, screen, or simply the next item in the optical transmission chain. Formally, the optical transfer function is defined as the Fourier transform of the point...
Read on Wikipedia · Image CC-BY-SA-4.0
Open boosters, collect cards and trade them. Free to play.
Play for free