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III WVC 2007 - Iris.sel.eesc.sc.usp.br - USP

III WVC 2007 - Iris.sel.eesc.sc.usp.br - USP

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<strong>WVC</strong>'<strong>2007</strong> - <strong>III</strong> Workshop de Visão Computacional, 22 a 24 de Outu<strong>br</strong>o de <strong>2007</strong>, São José do Rio Preto, SP.>do_nothing->ero_q_3”. The genetic parameters chosen for this task were: 50 generations,25 chromosomes, tree of depth 6, crossover rate of 90%, mutation rate of 20%and reproduction rate of 20%. The MAE error found was less than 0,7%. The trainingtime was less than 71 seconds and execution time was less than 0,02 seconds. This procedurewas applied to image of figure 4 producing a very good result. The operatordil_dd_3 is a dilation by a 3x3 diagonal structuring element. Operators dil_q_3 andero_q_3 are a dilation and an erosion by a 3x3 square structuring element. Thedo_nothing operator gives a relaxation for the tree depth chosen by the user.Figure 3. Procedure created automatically for head extraction.Figure 4. Example of head extraction.184

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