H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 5/74 (2006.01) H04N 9/12 (2006.01)
Patent
CA 2345128
A display for producing a seamless composite image from at least two discrete images. The display includes a projection means for projecting each of the discrete images separately onto a screen such that at least one of the discrete images overlaps at least one other of the discrete images by more than 25 percent. The amount of overlap that is required to reduce the seams of the composite image to an acceptable level over a predetermined viewing angle depends on a number of factors including the field-of-view and aperture size of the projectors, the screen gain profile, etc. For rear-projection screens and some front projection screens, an overlap of more than 25 percent is acceptable.
L'invention concerne la visualisation d'une image composite sans coutures à partir d'au moins deux images discrètes. Le visuel comprend un système de projection qui permet de projeter chacune des images discrètes séparément sur un écran, de sorte qu'au moins l'une des images discrètes chevauche au moins une autre des images discrètes de plus de 25 %. Le niveau de chevauchement requis pour ramener la visibilité des coutures de l'image composite à un degré acceptable sur un angle de vision prédéterminé dépend d'un certain nombre de facteurs, dont le champ de vision et la dimension de l'ouverture des projecteurs, le profil de gain de l'écran, etc. Pour les écrans à projection arrière et pour certains écrans à projection frontale, un chevauchement de plus de 25 % est acceptable.
Dubin Matthew B.
Johnson Michael J.
Gowling Lafleur Henderson Llp
Honeywell Inc.
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