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   v.outlier removes outlier points. By default, the outlier
   identification is done by a bicubic spline interpolation of the
   observation with a high regularization parameter and a low resolution
   in south-north and east-west directions. Those points that differ in an
   absolute value more than the given threshold from a fixed value,
   reckoned from its surroundings by the interpolation, are considered as
   an outlier, and hence are removed. There is a flag to create a vector
   that can be visualizated by qgis. That means that topology is build and
   the z coordinate is considered as a category.

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    Basic outlier removal

v.outlier input=vector_map output=vector_output outlier=vector_outlier thres_O=
25

   In this case, a basic outlier removal is done with a threshold of 25 m.

    Basic outlier removal

v.outlier -q input=vector_map output=vector_output outlier=vector_outlier qgis=
vector_qgis

   Now, the outlier removal uses the default threshold and there is also
   an output vector available for visualizaton in QGIS
   ([1]http://www.qgis.org).

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   This module is designed to work with LIDAR data, so not topology is
   built but in the QGIS output.

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   [2]v.surf.bspline

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   Original version of the program in GRASS 5.4:
   Maria Antonia Brovelli, Massimiliano Cannata, Ulisse Longoni and Mirko
   Reguzzoni
   Updates for GRASS 6:
   Roberto Antolin

   Last changed: $Date: 2006-09-04 18:58:47 -0500 (Ðн, 04 Ñен 2006) $

ÐвÑÐ¾Ñ Ð¿ÐµÑевода

References

   1. http://www.qgis.org/
   2. file://localhost/root/tmp/2/fin/v.surf.bspline.html