Translator Disclaimer
15 April 1994 Digital correction of keystoning caused by image translation
Author Affiliations +
Proceedings Volume 2177, Stereoscopic Displays and Virtual Reality Systems; (1994)
Event: IS&T/SPIE 1994 International Symposium on Electronic Imaging: Science and Technology, 1994, San Jose, CA, United States
Translating rectangular 2D images in planes perpendicular to the line of sight can create image distortion known as keystoning or projection warp. This can occur when viewing several images on a plane from a fixed position, when cross viewing, or when using non-parallel mirrors to view stereo pairs. In the latter case, vertical disparity can become a problem. The projection warp and its inverse are derived as functions of the viewing and translation parameters. It is shown that vertical disparity can be significant, even in small image translations. The inverse transformation applied to the original image corrects the keystoning caused by the translation. Rendering of the inverse image is also discussed.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David F. McAllister "Digital correction of keystoning caused by image translation", Proc. SPIE 2177, Stereoscopic Displays and Virtual Reality Systems, (15 April 1994);


Crosstalk reduces the amount of depth seen in 3D images...
Proceedings of SPIE (February 20 2012)
Morphing in stereo animation
Proceedings of SPIE (May 23 1999)
Parallax Barrier 3DTV
Proceedings of SPIE (September 10 1989)
Description of 3D digital curves using the theory free groups
Proceedings of SPIE (September 22 1999)

Back to Top