Spatial wavelength

1. What is a spatial wavelength?
2. What is meant by spatial frequency?
3. What is spatial and temporal frequency?
4. What is an example of spatial frequency?

What is a spatial wavelength?

in characterizing surface condition by noncontact optical profilometry, the corresponding lateral distance between two consecutive peaks for a surface that is a pure sinusoidal departure from the mean plane. [ SEMATECH]

What is meant by spatial frequency?

The spatial frequency is defined as line pairs per angular extent of the target, and the phase specifies the relative location of the target image to the detector array raster. From: Encyclopedia of Modern Optics, 2005.

What is spatial and temporal frequency?

The spatial frequency refers to how many complete periods the signal goes through for a given unit of distance (eg. cylcles/m) while the temporal frequency refers to how many complete periods the signal goes through for a given unit of time (eg. cyles/s or Hz).

What is an example of spatial frequency?

Spatial frequency describes the periodic distributions of light and dark in an image. High spatial frequencies correspond to features such as sharp edges and fine details, whereas low spatial frequencies correspond to features such as global shape.