Homography
ISOMORPHISM OF PROJECTIVE SPACES IN GEOMETRY
Projective transformation; Projective map; Homographic function; Fundamental theorem of projective geometry; Projective transformations; Projectivity; Projective linear transformation; Projective transform; Projective transformation matrix; Anti-homography
In projective geometry, a homography is an isomorphism of projective spaces, induced by an isomorphism of the vector spaces from which the projective spaces derive. It is a bijection that maps lines to lines, and thus a collineation.