Television – Modular image display system
Reexamination Certificate
2006-05-02
2006-05-02
Kostak, Victor R. (Department: 2614)
Television
Modular image display system
C348S189000, C348S745000
Reexamination Certificate
active
07038727
ABSTRACT:
A method is provided to smooth photometric variations across multi-projector displays. Photometric calibration is performed to generate a luminance attenuation map (LAM) for each projector. An image for each projector is modified using the luminance attenuation map (LAM) for each projector to provide image correction in real time. In the photometric calibration step a digital camera is used to measure the color response of the multi-projector display. Using the generated luminance attenuation map (LAM) for each projector for image correction in real time smoothes out distracting color variations across the multi-projector display while maximizing a perceived dynamic range of the display.
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Majumder Aditi
Stevens Rick L.
Pennington Joan
The University of Chicago
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