From May to November 2001 I wrote my Master's thesis at the University of Bielefeld:
"Methods for Range Estimation and Situation Recognition using an Omnidirectional Vision System for Mobile Robots
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Symmetry as a Natural Feature"
I wrote it in English and wanted to make some corrections later. The following sections are those of the submitted version of November 16, 2001,
because I (unfortunately) did not get any response from my supervisors. Furthermore, I did not want to manipulate this
work's "originality".