Camera-based system for calibrating color displays

Details Camera-based system for calibrating color displays Camera-based system for calibrating color displays

2004-12-15

2009-12-29

Sajous, Wesner (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S589000, C345S428000, C345S600000, C345S606000, C348S047000, C348S153000, C348S187000, C348S211110, C358S504000, C358S518000, C358S525000, C382S162000, C382S167000, C382S165000, C382S274000

Reexamination Certificate

active

07639260

ABSTRACT:
Provided herein are teachings directed to overcoming the problem of erroneous color reproduction on a color output device such as a color display. The teachings herein provide a system and apparatus for correcting color image data input to a display device by displaying a target of color patches of known input values on the display device, and capturing an image of the target with a digital camera. This is followed by extracting camera signals from the image which correspond to the color patches, and deriving a tone response calibration for the projector from the camera signals and the input values.

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Raja Bala et al., U.S. Appl. No., filed simultaneously herewith, titled “A Camera-Based Method for Calibrating Color Displays”.
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