English Dictionary

homography

/həʊˈmɒɡɹəfɪ/

noun

The state or quality of being written in the same way, especially when spelled with the same letters (as with a pair of homonyms), or also as represented with similar or identical glyphs (as with homoglyphs); the state or quality of existing as homographs.

The homography between the two images was used to align them.

意味（1）

The state or quality of being written in the same way, especially when spelled with the same letters (as with a pair of homonyms), or also as represented with similar or identical glyphs (as with homoglyphs); the state or quality of existing as homographs.

Coordinate term: homophony

意味（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.