SYSTEM AND METHOD FOR CALIBRATING A DISPLAY SYSTEM USING A SHORT THROW CAMERA

摘要

This invention overcomes disadvantages of the prior art by providing a system and method that allows for the calibration of a display system using one or more cameras whose lenses are not modeled, or are modeled with limited accuracy, and are potentially incapable of imaging the entire projector system. The illustrative system and method generally relies on well-established models of the projectors, rather than well-established models of the cameras. Illustratively, the cameras serve mainly to map the projectors into one coordinate system, where the overlap between the projectors can be established very precisely using a camera, even if the model of the camera lens properties is not known, or known only minimally.

主权项

1. A method of calibrating a projector system having two or more projectors, with one or more cameras, free of requiring the one or more cameras to image the entire screen, comprising the steps of:
capturing, with the one or more cameras, one or more projected patterns from the projectors; mapping the projected pixels from each projector into a common coordinate system, the step of mapping being free of depending on a model of the lens properties of the camera; and mapping the common coordinate system to the screen, free of depending on a model of lens properties of the one or more cameras.