Method and apparatus for calibrating a tiled display

Details Method and apparatus for calibrating a tiled display Method and apparatus for calibrating a tiled display

H - Electricity

04

N

H04N 9/12 (2006.01) H04N 17/04 (2006.01)

Patent

CA 2345226

A display system that can be calibrated and re-calibrated with a minimal amount of manual intervention. To accomplish this, one or more cameras are provided to capture an image of the display screen. The resulting captured image is processed to identify any non-desirable characteristics, including visible artifacts such as seams, bands, rings, etc. Once the non-desirable characteristics are identified, an appropriate transformation function is determined. The transformation function is used to pre-warp the input video signal that is provided to the display such that the non-desirable characteristics are reduced or eliminated from the display. The transformation function preferably compensates for spatial non-uniformity, color non- uniformity, luminance non-uniformity, and other visible artifacts.

L'invention concerne un système d'afficheur que l'on peut étalonner et ré-étalonner avec un minimum d'interventions manuelles. Pour ce faire, on saisit à l'aide d'au moins une caméra une image de l'écran d'affichage. On traite l'image capturée obtenue de manière à identifier toute caractéristique indésirable, y compris des artéfacts visibles tels que des joints, des bandes, des anneaux, etc. Une fois identifiées les caractéristiques indésirables, on définie une fonction de transformation appropriée. On utilise ladite fonction -our introduire un trouble préalable du signal vidéo d'entrée de l'affichage de manière à réduire ou éliminer de l'affichage les caractéristiques indésirables. Cette fonction de transformation corrige de préférence une non-uniformité spatiale, chromatique, une non-uniformité de luminance et tous autres artéfacts visibles.

Affiliated with

Also associated with

Rating

Method and apparatus for calibrating a tiled display does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for calibrating a tiled display, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for calibrating a tiled display will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1949007