Publication: Camera Autocalibration and the Calibration Pencil
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2005-03
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Abstract
We study the geometric object given by the set of lines incident
with the absolute conic. We see that this object is given by a pencil of quadrics
of P5, which is characterized. We describe some of its most relevant properties
for the camera autocalibration problem. Finally, we illustrate the applicabil-
ity of the theory proposing a linear algorithm for the metric upgrading of a
projective calibration of a set of ten or more cameras with varying parameters
and known skew and aspect ratio.