Projector

Details Projector Projector

2005-01-25

2005-01-25

Mahoney, Christopher (Department: 2851)

Optics: image projectors

Distortion compensation

For projection axis inclined to screen

Reexamination Certificate

active

06846081

ABSTRACT:
An image sensor is installed in the vicinity of a projection lens. The image sensor images a projected and displayed image and a screen. A projection display area and a screen area are detected from the image imaged by the image sensor. An inputted image data is corrected so that the projection display area matches the screen area. The image to be displayed is automatically displayed in a shape, which matches a display surface of the screen.

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N. Olsu, “An Automatic Threshold Selection Method Based on Discriminant and Least Squares Criteria”, vol. J63-D, No. 4, pp. 349-256.

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