vector quantization

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• Vector quantization — is a classical quantization technique from signal processing which allows the modeling of probability density functions by the distribution of prototype vectors. It was originally used for data compression. It works by dividing a large set of… …   Wikipedia

• Twin vector quantization — In data compression, twin vector quantization is related to vector quantization, but the speed of the quantization is doubled by the secondary vector analyzer.By using a subdimensional vector space useless hyperspace will be destroyed in the… …   Wikipedia

• Learning Vector Quantization — Lernende Vektorquantisierung englisch learning vector quantization (kurz: LVQ) ist ein Verfahren aus dem Bereich der künstlichen neuronalen Netze. Es dient der Klassifikation von nichtlinearen Problemen. VQ = Vektorquantisierung: Verfahren zum… …   Deutsch Wikipedia

• Quantization (signal processing) — In digital signal processing, quantization is the process of approximating a continuous range of values (or a very large set of possible discrete values) by a relatively small set of discrete symbols or integer values.More specifically, a signal… …   Wikipedia

• BRST quantization — In theoretical physics, BRST quantization (where the BRST refers to Becchi, Rouet, Stora and Tyutin) is a relatively rigorous mathematical approach to quantizing a field theory with a gauge symmetry. Quantization rules in earlier QFT frameworks… …   Wikipedia

• Color quantization — An example image in 24 bit RGB color The same image reduced to a palette of 16 colors specifically chosen to best represent the image; the selected palette is shown by the squares above In …   Wikipedia

• Spatial quantization — In quantum mechanics, spatial quantization is the quantization of angular momentum in three dimensional space. It results from the fact that the angular momentum of a rigid rotor is expressed in three dimensions, and is quantized.For a rigid… …   Wikipedia

• Landau quantization — in quantum mechanics is the quantization of the cyclotron orbits of charged particles in magnetic fields. As a result, the charged particles can only occupy orbits with discrete energy values, called Landau levels. The Landau levels are… …   Wikipedia

• Canonical quantization — In physics, canonical quantization is one of many procedures for quantizing a classical theory. Historically, this was the earliest method to be used to build quantum mechanics. When applied to a classical field theory it is also called second… …   Wikipedia

• Laplace–Runge–Lenz vector — Throughout this article, vectors and their magnitudes are indicated by boldface and italic type, respectively; for example, left| mathbf{A} ight| = A. In classical mechanics, the Laplace–Runge–Lenz vector (or simply the LRL vector) is a vector… …   Wikipedia

• VQ — vector quantization …   Medical dictionary