Digital camera with built-in lens calibration table
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United States of America Patent
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Sep 15, 2009
Grant Date -
Mar 31, 2005
app pub date -
May 10, 2004
filing date -
Sep 30, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A digital camera that automatically corrects dust artifact regions within acquired images by compiling a dust map includes an optical system for acquiring an image with a corresponding dust calibration table for such optical system, including a lens assembly and an aperture stop, in which the corresponding dust calibration map can reside. A transformation between the dust map and the specific lens calibration table, enables the use for a single dust map in multiple instances of lenses and focal length, without the need to recalibrate the digital camera for each instance.
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