Ground truth data (u_i, v_i)

    20    20
    30    30
    40    40
    50    50
    60    60
    70    70
    80    80
    90    90
   100   100
   110   110
   120   120
   130   130
   140   140
   150   150
   160   160
   170   170
   180   180
   190   190
   200   200
   210   210
   220   220
   230   230
   240   240
   250   250
   260   260
   270   270
   280   280
   290   290
   300   300
   310   310


Noisy observations are:

   30.6599   40.6570
    8.9595   37.2423
   39.2643   15.4473
   44.4980   46.7913
   38.3285   20.9157
   51.8103   69.8884
   45.5302  105.2615
   77.9913   48.7215
  102.2182  129.7523
  111.0600  113.2396
  119.4624  123.4715
  147.6434  133.6459
  155.1059  150.1607
  152.6376  155.6021
  140.3430  141.1183
  169.7388  177.0869
  162.1058  196.2422
  192.1907  244.6329
  208.2216  173.8628
  217.6761  219.9901
  209.7843  224.6984
  218.0435  230.4154
  248.3889  263.8221
  265.4243  197.1156
  265.7086  276.5219
  269.8376  287.1688
  295.4958  306.1189
  314.6301  309.1713
  266.9090  280.1921
  323.7047  290.5026