Applications of Neural Networks in Micromechanics - Neural Networks and Micromechanics - page 196

Fig. 9.6 Permutation pattern

Y ¼ i = D c ;

EY ðÞ¼ ðÞ int Y (9.6)

RY ðÞ¼ i EY ðÞ D c ;

R ð X Þ N

P x ¼ ; (9.7)

D c

R ð Y Þ N

P y ¼ ; (9.8)

D c

where E ( X ) is the integer part of X ; R ( X ) is the fraction part of X ; i is the vertical
coordinate of the detected feature; j is the horizontal coordinate of the detected
feature; and N is the number of neurons.
The mask of the feature F s is considered as a code of this feature located at the
top left corner of the image. To shift the feature location in the horizontal direction,