Automatic graphics adaptation to video mode for hdtv

Details Automatic graphics adaptation to video mode for hdtv Automatic graphics adaptation to video mode for hdtv

G - Physics

09

G

G09G 1/16 (2006.01) G09G 5/391 (2006.01) H04N 5/445 (2006.01) H04N 5/44 (2006.01) H04N 5/46 (2006.01)

Patent

CA 2365283

Automatic Graphics adaptation to video mode combines a single format bit mapped graphic image automatically with different digital video modes such as HDTV (411) and SDTV (401). Depending upon the particular video mode, the overlaid bit mapped graphic image is selectively remapped or mapped to the digital video in order to minimize distortion. In one embodiment, a method includes the steps of: determining a current display mode of the HDTV monitor; remapping the bit mapped graphical image from a 1x1 pixel (403) to a corresponding 2x2 set of DTV pixels (413) when said current display mode is an HDTV mode (411); remapping the bit mapped graphical image from a pixel to a corresponding DTV pixel when said current display is in an SDTV mode (401); and superimposing the remapped bit mapped graphical image on to the current display mode.

La présente invention concerne l'adaptation de graphismes automatiques à un mode vidéo par la combinaison automatique d'une image graphique en mode point à format unique avec divers modes vidéo numériques tels que HDTV (411) et SDTV (401). En fonction du mode vidéo particulier, l'image graphique en mode point recouverte est remise en correspondance ou mise en correspondance avec le mode vidéo numérique afin de minimiser la distortion. Dans un mode de réalisation, le procédé consiste à déterminer un mode d'affichage courant du moniteur, à remettre en correspondance l'image graphique en mode point d'un pixel 1x1 (403) à un ensemble 2x2 correspondant de pixels DTV (413) lorsque ledit mode d'affichage courant est un mode HDTV (411), à remettre en correspondance l'image graphique en mode point d'un pixel à un pixel DTV correspondant lorsque ledit affichage courant est en mode SDTV (401) et à superposer l'image graphique en mode point remise en correspondance sur le mode d'affichage courant.

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