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Apodization literally means "removing the foot". To apodize is the technical term for changing the shape of a mathematical function, an electrical signal, an optical transmission or a mechanical structure to remove or smooth a discontinuity at the edges. An example of apodization is the use of the Hann window in the Fast Fourier transform analyzer to smooth the discontinuities at the beginning and end of the sampled time record. Image File history File links Wiki_letter_w. ... Image File history File links Information_icon. ... In mathematics, a function is a relation, such that each element of a set (the domain) is associated with a unique element of another (possibly the same) set (the codomain, not to be confused with the range). ... The Hann window (sometimes called the Hanning window) is a mathematic function used in digital signal processing to avoid discontinuities at the two ends of a set of data. ... A fast Fourier transform (FFT) is an efficient algorithm to compute the discrete Fourier transform (DFT) and its inverse. ...

When stopping your car, if you "remove your foot" to reduce the brake pedal force just as you come to a stop, you will not feel a "jerk" and the car will come to a smooth stop. This is a form of apodization. A brake is a device for slowing or stopping the motion of a machine or vehicle, and to keep it from starting to move again. ...

In optical sciences, apodization refers to purposely changing the transmission properties of an optical system. It usually refers to non-uniform illumation or transmission, like laser beam profile. This may be a complicated function to tailor the system to certain properties. Apodization is used in telescope optics in order to improve the dynamical range of the image. For example, stars with low intensity in the close vicinity of very bright stars can become visible using this technique. Generally, apodization reduces the resolution of an optical image. The diaphragm of a photo camera is not an example for apodization, since the stop doesn't produce a smooth transition to zero intensity. Optical physics, or optical science, is a subfield of atomic, molecular, and optical physics. ... Table of Opticks, 1728 Cyclopaedia Optics ( appearance or look in ancient Greek) is a branch of physics that describes the behavior and properties of light and the interaction of light with matter. ... A 35mm lens set to f/8; the diameter of the heptagonal diaphragm opening is 4. ... A camera is a device used to capture images, usually photographs, either singly or in sequence such as with video cameras. ...

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