For documentation on the current version, please check Knowledge Base.

# Preferences of Automated Pole Detection

This page describes only the parameters and preferences of Automated Pole Detection.

Full documentation about concept, workflow and sidebar, see Automated Feature Extraction.
General concepts of Detectors Preferences, see Preferences of Detectors.

#### Basic Parameters

**Neighborhood Dist**

The distance in the XY plane that should not contain another pole.

**Slice Thickness**

The thickness of the slices in which the algorithm will detect the pole.

**Height Min**

The minimum height of the detected pole.

**Diameter Min**

The minimum diameter of the detected pole.

**Diameter Max**

The maximum diameter of the detected pole.

**Remove trees/ Signs**

The option to exclude or include trees and signs in the pole detection.

**Fence Slices Min**

The minimum percentage of slices that have to be identified as a fence to classify the pole as being part of a fence.

**Ground Offset**

Maximum distance of the bottom of the pole to the ground surface.

**Pole Points Min**

The minimum number of points cloud points a detected pole has to contain.

#### Advanced Parameters

**Cell size**

The size of the cell used for the scanning grid.

**Cell size overlap**

The overlap of cells on the scanning grid.

**Cell points min**

The minimal number of points required in a scanning grid cell.

**Histogram Cell Size**

The size of a cell from the histogram grid.

**Slice Overlap**

Percentage of Z slices' height to overlap each other, allowing consecutive slices to be similar.

**Pole Gap Max**

The maximum vertical gap in the point cloud for a pole.

**Height Max**

Maximal height of a pole.

**Proximity Distance**

The maximum distance in the XY plane between the cluster and the individual point to be added to the cluster.

**Ground Margin**

If the terrain is not exactly flat next to the pole (high grass or other noise next to pole) the ground margin defines “thickness of the ground”.

**Remove poles not on the ground**

Remove poles that are distant from the ground.

**Circle Ration Min**

The ration of two perpendicular diameters of a circle. A perfect circle has ratio 1.

**Mask Cell Size**

Cell size of masking grid on a slice.

**Diam Exceeded Max**

The maximum percentage of slices for which the candidate pole can exceed the maximum diameter.

**Mask Matching Min**

Minimum average “consecutive mask comparison” percentage.

**Tree Stalk Height Min**

Minimum height for the stalk of a tree.

**Tree Slice Z Size**

Z-slice to be used to identify the Crown of a tree.

**Tree Slice Circle Ratio Min**

The ration between two perpendicular diameters of a sliced tree. A perfect circle has ratio 1.

**Sign Thickness Max**

Maximum thickness for a sign, measured in depth.

**Sign Diam Min**

Minimum average diameter for a sign.

**Sign Relative Z size Max**

Relation to the total pole height.

**Get point cloud selection mergec**

Get a selection file with the detected features.

**Get point cloud selection**

Get a selection file with the points belonging to the detected feature.

## Examples

- Small pole close to the big one might not be found as it will not show a density peak at the location of a smaller pole. Parameter to change to have higher probability to find the small pole as well:
**Cell size hist**.