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@@ -41,7 +41,7 @@ outlier. | |
{ | ||
"type":"filters.miniball", | ||
"knn":8 | ||
} | ||
}, | ||
"output.laz" | ||
] | ||
|
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|
@@ -43,7 +43,7 @@ outlier. | |
{ | ||
"type":"filters.planefit", | ||
"knn":8 | ||
} | ||
}, | ||
"output.laz" | ||
] | ||
|
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@@ -0,0 +1,46 @@ | ||
.. _filters.skewnessbalancing: | ||
|
||
filters.skewnessbalancing | ||
=============================================================================== | ||
|
||
**Skewness Balancing** classifies ground points based on the approach outlined | ||
in [Bartels2010]_. | ||
|
||
.. embed:: | ||
|
||
.. note:: | ||
|
||
For Skewness Balancing to work well, the scene being processed needs to be | ||
quite flat, otherwise many above ground features will begin to be included | ||
in the ground surface. | ||
|
||
Example | ||
------- | ||
|
||
The sample pipeline below uses the Skewness Balancing filter to segment ground | ||
and non-ground returns, using default options, and writing only the ground | ||
returns to the output file. | ||
|
||
.. code-block:: json | ||
[ | ||
"input.las", | ||
{ | ||
"type":"filters.skewnessbalancing" | ||
}, | ||
{ | ||
"type":"filters.range", | ||
"limits":"Classification[2:2]" | ||
}, | ||
"output.laz" | ||
] | ||
Options | ||
------------------------------------------------------------------------------- | ||
|
||
.. note:: | ||
|
||
The Skewness Balancing method is touted as being threshold-free. We may | ||
still in the future add convenience parameters that are common to other | ||
ground segmentation filters, such as ``returns`` or ``ignore`` to limit the | ||
points under consideration for filtering. |
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|
@@ -63,7 +63,7 @@ Example | |
}, | ||
{ | ||
"type":"writers.text", | ||
"filename":"outputfile.txt", | ||
"filename":"outputfile.txt" | ||
} | ||
] | ||
|
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|
@@ -19,7 +19,7 @@ Example | |
[ | ||
{ | ||
"type":"readers.bpf" | ||
"type":"readers.bpf", | ||
"filename":"inputfile.las" | ||
}, | ||
{ | ||
|
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|
@@ -36,7 +36,7 @@ Example | |
[ | ||
{ | ||
"type":"readers.las" | ||
"type":"readers.las", | ||
"filename":"inputfile.las" | ||
}, | ||
{ | ||
|
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|
@@ -24,7 +24,7 @@ Example | |
"type":"filters.hexbin" | ||
}, | ||
{ | ||
"type":"writers.null", | ||
"type":"writers.null" | ||
} | ||
] | ||
|
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