Page 255 - Introduction to Autonomous Mobile Robots
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Chapter 5
                           240
                           measurement points contributing to each line as developed for line extraction in section
                           4.3.1.1:


                                       σ   σ
                                Σ Rj  =  αα  αr                                              (5.62)
                                  ,
                                       σ   σ
                                        rα
                                            rr
                                              j



                           a)                                 b)

                                                                                     line j



                                                                                  α j

                                                                                     r
                                                                                      j











                           c)  r



                                 line j
                             r j





                              -π   α j       0             π


                           Figure 5.30
                           Observation: From the raw data (a) acquired by the laser scanner at time k + 1, lines are extracted (b).
                           The line parameters α  j   and   and its uncertainties can be represented in the model space (c).
                                               r
                                                j
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