Method for calibrating an assembly using at least one omnidirectional camera and an optical display unit
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United States of America Patent
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Dec 3, 2013
Grant Date -
Aug 26, 2010
app pub date -
Sep 23, 2008
filing date -
Oct 16, 2007
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Abstract
A method for calibrating an assembly consisting of an omnidirectional camera (2) located on a vehicle (1) and an optical display unit. An image displayed by the display unit reproduces a perspective of an imaginary virtual camera above the object (1), an image from the virtual camera is projected into an object coordinate system and resulting coordinates (XW, XW.Y) are projected into the omnidirectional camera. During the projection of the image of the virtual camera into the object coordinate system, pixels (xp) of the image of the virtual camera within an imaginary circle or ellipse (1) around the object are projected onto an imaginary plane, while pixels (xp) of the image outside the circle or ellipse are transformed by the virtual camera into the object coordinate system in such a way that they are projected onto an imaginary surface that rises from the edge of the circle or ellipse.
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