Patent ID: 6804406
Filing Date: 2004-10-12
Classification: G06T,H04N

Abstract:
A method of calibrating a seamless tiled display, comprising:disposing a spatial filter in an image path; displaying a subset of a first predetermined image on a screen using a projector; capturing the subset of the displayed first predetermined image using a camera; generating the rest of the first predetermined image not displayed on the screen due to the inclusion of the spatial filter in the image path using the captured subset of the displayed first predetermined image; combining the captured subset of the first predetermined image with the generated rest of the first predetermined image to form a composite of the first predetermined image; determining whether the formed composite of the first predetermined image has one or more undesirable projector characteristics; and generating a display-to-screen spatial transformation function that can be applied to an input video signal of the projector to reduce the undesirable projector characteristics.