Method and apparatus for correction of perspective distortion

Details Method and apparatus for correction of perspective distortion Method and apparatus for correction of perspective distortion

2007-07-03

2007-07-03

Chauhan, Ulka (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Graphic manipulation

C345S607000, C345S427000

Reexamination Certificate

active

10878984

ABSTRACT:
Perspective distortion in an imaged scene is corrected by identifying a group of points in the imaged scene such that the group of points define a shape. Two vanishing points are determined based on the group of points in the imaged scene. The process determines a first set of reference points within the shape defined by the group of points and transforms the first set of reference points into a second set of reference points. An aspect ratio associated with the first set of reference points is adjusted and the imaged scene is transformed to reduce perspective distortion in the imaged scene.

REFERENCES:
patent: 5870099 (1999-02-01), Horii et al.
patent: 6191827 (2001-02-01), Segman et al.
patent: 6753907 (2004-06-01), Sukthankar et al.
patent: 6947610 (2005-09-01), Sun
patent: 2002/0149808 (2002-10-01), Pilu

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