Αποτελέσματα Αναζήτησης
Define amplitude, frequency, period, wavelength, and velocity of a wave; Relate wave frequency, period, wavelength, and velocity; Solve problems involving wave properties
image compression, musical tones, and de-noising noisy data. 1. WAVELETS OVERVIEW The fundamental idea behind wavelets is to analyze according to scale. Indeed, some researchers in the wavelet fleld feel that, by using wavelets, one is adopting a whole new mindset or perspective in processing data.
The electromagnetic spectrum is the full range of electromagnetic radiation, organized by frequency or wavelength. The spectrum is divided into separate bands, with different names for the electromagnetic waves within each band.
The wavelength range extends beyond the visible spectrum and covers the spectrum from ultraviolet (UV) to long wave infrared (LWIR) wavelengths. The most popular are the visible, near-infrared, and mid-infrared wavelength bands.
27 Ιουν 2014 · Each point on the image acts like a spherical wave source, interfering constructively or destructively with every other spherical wave in the planes beyond the image. The phases change in any given plane, and are responsible for the propagation of light.
Imaging. Image: a visual representation in form of a function f(x,y) where f is related to the brightness (or color) at point (x,y) Most images are defined over a rectangle. Continuous in amplitude and space.
A wave’s amplitude is the maximum distance (positive or negative) a wave reaches from its rest position. Wavelength is the distance between the same spot on two sections of a wave. A wave’s frequency can be measured by how many crests (or how many troughs) pass a location in a certain amount of time.
