A significant number of areal surface topography measuring instruments, largely based on
optical techniques, are commercially available. However, implementation of optical …

The Optical Transfer Function of Imaging Systems deals extensively with the theoretical
concept of the optical transfer function (OTF), its measurement, and application to imaging …

Modulation-transfer-function (MTF) measurement often involves the use of three-and four-
bar resolution targets. In the conversion of three-and four-bar image data to MTF, biased …

Optical instruments are precision tools and must be made to very high tolerances.
Deviations from the correct shape of individual lens surfaces of fractions of a micrometre can …

The ability to see through smoke and mist and the ability to use the variances in temperature
to differentiate between targets and their backgrounds are invaluable in military applications …

The averaged point-spread function (PSF) estimation of an image acquisition system is
important for many computer vision applications, including edge detection and depth from …

We measured the modulation transfer function (MTF) of a lens in the visible region using a
random test target generated on a computer screen. This is a simple method to determine …

Most medium to high quality digital cameras (dslr s) acquire images at a spatial rate which is
several times below the ideal Nyquist rate. For this reason only aliased versions of the …

The modulation transfer function (MTF) describes how an imaging system will modify the
spatial frequency content of a scene. Many performance metrics are strongly dependent on …

A random target method for fast MTF inspection is proposed. The setup includes a random
target, lens under test and a CCD camera with focus adjustment. The target consists of a …