feature extraction

См. также в других словарях:

• Feature extraction — In pattern recognition and in image processing, Feature extraction is a special form of dimensionality reduction.When the input data to an algorithm is too large to be processed and it is suspected to be notoriously redundant (much data, but not… …   Wikipedia

• feature extraction —    The optical character recognition (OCR) technique used by     omnifont OCR software …   IT glossary of terms, acronyms and abbreviations

• Feature selection — Feature selection, also known as variable selection, feature reduction, attribute selection or variable subset selection, is the technique, commonly used in machine learning, of selecting a subset of relevant features for building robust learning …   Wikipedia

• Feature (computer vision) — In computer vision and image processing the concept of feature is used to denote a piece of information which is relevant for solving the computational task related to a certain application. More specifically, features can refer to* the result of …   Wikipedia

• Feature detection (computer vision) — In computer vision and image processing the concept of feature detection refers to methods that aim at computing abstractions of image information and making local decisions at every image point whether there is an image feature of a given type… …   Wikipedia

• Feature vector — In pattern recognition and machine learning, a feature vector is an n dimensional vector of numerical features that represent some object. Many algorithms in machine learning require a numerical representation of objects, since such… …   Wikipedia

• Scale-invariant feature transform — Feature detection Output of a typical corner detection algorithm …   Wikipedia

• Feature recognition — The term feature does not imply the same meaning in different engineering disciplines. This has resulted in several ambiguous definitions for feature. A feature, in computer aided design (CAD) software, can be called a region of a part with some… …   Wikipedia

• Extraction de caractéristique en vision par ordinateur — Pour les articles homonymes, voir extraction de caractéristique (homonymie). En vision par ordinateur, l extraction de caractéristiques visuelles (ou visual features extraction en anglais) consiste en des transformations mathématiques calculées… …   Wikipédia en Français

• Scale-invariant feature transform — Exemple de résultat de la comparaison de deux images par la méthode SIFT (Fantasia ou Jeu de la poudre, devant la porte d’entrée de la ville de Méquinez, par Eug …   Wikipédia en Français

• Shale oil extraction — Shell s experimental in situ shale oil facility, Piceance Basin, Colorado, United States Process type Chemical Industrial sector(s) Chemical industry, oil indus …   Wikipedia