Stereoscopic video-graphic coordinate specification system

H - Electricity – 04 – N

Patent

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Details

350/3.1

H04N 13/00 (2006.01)

Patent

CA 2022706

A stereoscopic image generator for superimposing a stereographic pointer video signal onto a composite standard video signal, the generator comprises a computer for generating the stereographic pointer video signal in response to aninput signal representative of the three dimensional coordinates of a point in athree dimensional video image, a video synchronizing circuit for receiving the composite standard video signal and delivering a synchronization signal to the computer, and a video keying circuit for receiving the composite standard video signal and the stereographic pointer video signal and superimposing the stereographic pointer video signal onto the composite standard video signal to produce a single combined video signal, the single combined video signal allowing the stereographic pointer video signal and the composite standard video signal to be viewed together simultaneously on the same video screen.

L'invention est un générateur d'images stéréoscopiques servant à superposer le signal vidéo d'un pointeur stéréographique à un signal vidéo composite standard. Ce générateur comporte un ordinateur servant à produire le signal vidéo d'un pointeur stéréographique en réponse à la réception d'un signal représentant les trois coordonnées d'un point d'une image vidéo tridimensionnelle, un circuit de synchronisation vidéo servant à recevoir le signal vidéo composite standard et à transmettre le signal de synchronisation à l'ordinateur, et un circuit d'incrustation vidéo servant à recevoir le signal vidéo composite standard et le signal vidéo du pointeur stéréographique et à superposer le second au premier pour produire un seul signal vidéo résultant qui affiche simultanément sur l'écran le pointeur stéréographique et l'image du signal vidéo composite standard.

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