Learn how to do the whip in west coast swing dance from dance champion Robert Royston in this Howcast dance video.
modulation transfer function (MTF) a quantitative measure of the ability of an imaging system to reproduce patterns that vary in spatial frequency. The MTF is useful in predicting image degradation in a series of radiographic components.
As the optical transfer function of these systems is real and non-negative, the optical transfer function is equal to the modulation transfer function by definition. Images of a point source and spoke target are shown in (b,e) and (c,f), respectively.