Output correction for visual projection devices
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United States of America Patent
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Jan 19, 2016
Issued Date -
N/A
app pub date -
Jan 29, 2008
filing date -
Jan 29, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Dedicated projectors and devices with projection abilities such as digital cameras or camcorders have projections that are corrected to compensate for irregularities in the surfaces receiving the projection. The image data being projected is compensated to account for the irregularities by observing the irregularities with a camera to produce image data and creating the compensation based on that image data. Irregularities of the projection receiving location including angular relationships to the projector causing keystoning, noisy surfaces with reflectivity or absorption, color patterns, non-planar regions, intervening objects, and the like may be accounted for during the compensation. The projection of the image itself may be utilized to capture the result of projecting onto the irregularities. Projection of target grids, such as using infrared, may be used to capture the result of projecting onto the irregularities. The captured image may be processed to produce a compensated image to be projected.
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Cited Art Landscape
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