digital correlation

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• Digital image correlation — and Tracking (DIC/DDIT) is an optical method that employs tracking image registration techniques for accurate 2D and 3D measurements of changes in images. This is often used to measure deformation (engineering), displacement, and strain, but it… …   Wikipedia

• Digital scientific echosounder — is a type of scientific echosounder used in hydroacoustic research. In a digital scientific echosounder system, the returned acoustic signal is digitized for improved performance. Collected acoustic data is stamped with geographic information for …   Wikipedia

• Digital signal processing — (DSP) is concerned with the representation of discrete time signals by a sequence of numbers or symbols and the processing of these signals. Digital signal processing and analog signal processing are subfields of signal processing. DSP includes… …   Wikipedia

• Digital Circuit Multiplication Equipment — (DCME) was a type of voice compression equipment that is installed at either end of a long distance link (typically communications satellite or submarine communications cable). The main characteristics of DCME are defined in ITU T recommendation… …   Wikipedia

• Digital elevation model — 3D rendering of a DEM of Tithonium Chasma on Mars A digital elevation model is a digital model or 3 D representation of a terrain s surface commonly for a planet (including Earth), moon, or asteroid created from terrain elevation data. There is… …   Wikipedia

• Corrélation d'images — La corrélation d images numériques (Digital Image correlation ou DIC en anglais) est une méthode optique 2D ou 3D qui permet de mesurer les déplacements entre deux images. Elle est de plus en plus employée en sciences des matériaux pour… …   Wikipédia en Français

• Digital image — A digital image is a numeric representation (normally binary) of a two dimensional image. Depending on whether or not the image resolution is fixed, it may be of vector or raster type. Without qualifications, the term digital image usually refers …   Wikipedia

• Partial correlation — In probability theory and statistics, partial correlation measures the degree of association between two random variables, with the effect of a set of controlling random variables removed. Contents 1 Formal definition 2 Computation 2.1 Using… …   Wikipedia

• Cross-correlation — In signal processing, cross correlation is a measure of similarity of two waveforms as a function of a time lag applied to one of them. This is also known as a sliding dot product or sliding inner product. It is commonly used for searching a long …   Wikipedia

• Ritz Dakota Digital — The Ritz Dakota Digital is a type of point and shoot digital camera, introduced in July of 2003, and sold by the Ritz Camera Centers. It has a digital photo resolution of 1.2 megapixels (1280 pixels wide, 960 pixels high) and a storage capacity… …   Wikipedia

• Sonar — This article is about underwater sound propagation. For atmospheric sounding, see SODAR. For other uses, see Sonar (disambiguation) …   Wikipedia