Russian |
The property
of filling ratio of a resulting segment is defined as follows:
Where
t_1, t_2... t_m
- coordinates of points of the raster;
E (t_i, h) - |
membership function which is determined
by parameters of the found maximum (h = {X, Y, A, D, P1, P2, B1, B2}); |
e (t_i) - |
the indicator function marking contour
points: = 1 if the given raster point is included into the number of contour points; = 0, otherwise. |
In the first
series of experiments those segments were only considered acceptable
which have filling ratio over 0.5.
According to
sparsed representation, the filling ratio criterion of contiguous
segments was modified also. The essence of such modification consists
in the following. The axial line of a tested segment is divided into the
intervals equal to a step of tracking of contour boundaries. Within the
limits of each interval there is the contour point nearest to the axial
line. Values of memberships functions to these points are summarized, and
the obtained outcome is divided on the greatest possible value of this sum
when within the limits of each interval there is a point laying on the
segment axial line. In the second series of experiments the segments which
filling ratio exceeded 0.8 were considered as acceptable ones.