discrete grid
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Discrete Laplace operator — For the discrete equivalent of the Laplace transform, see Z transform. In mathematics, the discrete Laplace operator is an analog of the continuous Laplace operator, defined so that it has meaning on a graph or a discrete grid. For the case of a… … Wikipedia
Discrete Poisson equation — In mathematics, the discrete Poisson equation is the finite difference analog of the Poisson equation. In it, the discrete Laplace operator takes the place of the Laplace operator. The discrete Poisson equation is frequently used in numerical… … Wikipedia
Discrete tomography — A discrete tomography reconstruction problem for two vertical and horizontal directions (left), together with its (non unique) solution (right). The task is to color some of the white points black so that the number of black points in the rows… … Wikipedia
Grid (spatial index) — In the context of a spatial index, a grid (a.k.a. mesh , also global grid if it covers the entire surface of the Globe) is a regular tessellation of a manifold or 2 D surface that divides it into a series of contiguous cells, which can then be… … Wikipedia
World Community Grid — Traduction à relire World Community Grid → … Wikipédia en Français
Ball grid array — For other uses, see BGA (disambiguation). Intel Embedded Pentium MMX (bottom view) A ball grid array (BGA) is a type of surface mount packaging used for integrated circuits. Contents … Wikipedia
Geodesic grid — A geodesic grid is a technique used to model the surface of a sphere (the Earth) with a subdivided polyhedron, usually an icosahedron.IntroductionWhen modeling the weather, ocean circulation, or the climate, partial differential equations are… … Wikipedia
Numerical diffusion — is a difficulty with computer simulations of continua (such as fluids) wherein the simulated medium exhibits a higher diffusivity than the true medium. This phenomenon can be particularly egregious when the system should not be diffusive at all,… … Wikipedia
Recursive Bayesian estimation — is a general probabilistic approach for estimating an unknown probability density function recursively over time using incoming measurements and a mathematical process model. Model The true state x is assumed to be an unobserved Markov process,… … Wikipedia
Edge detection — is a terminology in image processing and computer vision, particularly in the areas of feature detection and feature extraction, to refer to algorithms which aim at identifying points in a digital image at which the image brightness changes… … Wikipedia
Continuous automaton — A continuous automaton can be described as a cellular automaton extended so the valid states a cell can take are not just discrete (for example, the states consist of integers between 0 and 3), but continuous, for example, the real number range… … Wikipedia
