Cylindrical Sensor Calibration Using Lines (TP-L3)

Author(s) : Laurent Smadja (LISIF, France) Ryad Benosman (LISIF, France) Jean Devars (LISIF, France)

Abstract : This paper deals with the calibration of a cylindric omnidirectional imaging system, based on a rotating $2048$ pixels linear camera, which provides high definition panoramas. The two-steps algorithm relies on line segments projections, which are sinusoidal curves. Moreover, Plucker formalism makes it possible to linearize the full cylindrical model. Calibration data are provided by a sinusoid detection step, based on a ``dual'' Hough transform. Results obtained from the first process are used to evaluate one of the intrinsics, the other one being determined by a linear minimization criterion in the dual space.

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