homography

EnglishEdit

 
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EtymologyEdit

homo- +‎ -graphy

PronunciationEdit

NounEdit

homography (countable and uncountable, plural homographies)

  1. The state or quality of being spelt homographically; the state or quality of existing as homographs.
  2. (geometry) An isomorphism between projective spaces that maps straight lines to straight lines.
    A homography on a real projective plane can be specified by a mapping from one set of four non-collinear points to another set of four non-collinear points. Given such a specification, then the 3-by-3 homography matrix may be computed by means of the DLT (Direct Linear Transformation) algorithm.
    Synonyms: projectivity, projective transformation, projective collineation
    Hypernym: collineation
    Hyponyms: linear fractional transformation, Möbius transformation

Related termsEdit