quantization


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quantization

[‚kwän·tə′zā·shən]
(communications)
Division of the range of values of a wave into a finite number of subranges, each of which is represented by an assigned or quantized value within the subrange.
(quantum mechanics)
The restriction of an observable quantity, such as energy or angular momentum, associated with a physical system, such as an atom, molecule, or elementary particle, to a discrete set of values.
The transition from a description of a system of particles or fields in the classical approximation where canonically conjugate variables commute, to a description where these variables are treated as noncommuting operators; quantization (first definition) is a result of this procedure.
(science and technology)
The restriction of a variable to a discrete number of possible values; thus the age of a person is usually quantized as a whole number of years.

quantization

(1) The division of a range of values into a single number, code or classification. For example, class A is 0 to 999, class B is 1000 to 9999 and class C is 10000 and above.

(2) In analog to digital conversion, the assignment of a number to the amplitude of a wave. The larger the range of numbers, the finer the increments can be measured, and the more the digital sample represents the analog signal. See sampling and quantization error.
References in periodicals archive ?
Objective: We will use modern techniques in derived algebraic geometry, topological field theory and quantum groups to construct quantizations of character varieties, moduli spaces parameterizing G-bundles with flat connection on a surface.
After the quantization, the nature of the quantized DCT coefficients and the random occurrence of zeros in the high frequency coefficients lead to the further need of the compression.
In the numerous multi-planetary systems around a single star for which we have checked the QCM angular momentum quantization restriction [2], not only do the planetary orbits contribute much more angular momentum than the star rotation, but also each was determined to require additional angular momentum contributions from more planets and/or the equivalent of an Oort Cloud.
Vertex clustering, among the simplest simplification techniques, is based on a crude vertex quantization, obtained by imposing a uniform, axis-aligned grid and clustering all vertices that fall in the same grid cell.
Among the non-transformed approaches Vector Quantization [2] based techniques encodes a sequence of samples rather than encoding a sample and automatically exploits both linear and non-linear dependencies.
the decoder needs the following information: a parameter L, a quantization factor Q, and two secret keys [SK.
e](s) is error characteristics of known saw-tooth shape with zero mean and peak-to-peak value of one quantization step q.
In addition to providing an efficient way to search large libraries of digital slides for image regions that match a given image, vector quantization also allows searching for exceptions, such as regions of an image which are different from previously characterized images.
This paper is organized as follows: The next section briefly explains the Vector Quantization.
Color image quantization or simply color quantization, is a form of image compression which reduces the number of colors used in an image while maintaining, as much as possible, the appearance of the original.
Automation for Food Engineering: Food Quality Quantization and Process Control gives a systematical study and summary about concepts, principles, methods, and practices in food quality quantization and process control.
jointly said Tuesday they have developed a high-resolution wireless image projector system for conference use in which the university's vector quantization still-image compression technology is used.