====== Preferences of Roadmark Detection =====

This page describes only the parameters and preferences of Roadmark Detector. \\
Full documentation about semi-automatic detectors, see [[2210:technology:3d_mapping:measurements|]].\\
General concepts of Detectors Preferences, see [[2210:desktop:preferences:detectors|]].

===== Concepts ===== 



===== Algorithm =====

==== Search Margin ====

The horizontal margin to search for the next segment. 

==== Mark Width Max ====

The maximum width of a mark.

==== Mark Width Min ====

The minimum width of a mark.

==== Segment Sections Length ====

A segment of the road MARK(?)is detected by detecting multiple adjacent small sections.

==== Segm Section Ground Margin ====

Ground margin for segments sections of line.

==== Segment Section Side Step ====

The position of a small section is projected from the previous, then moved sideways by this side step.

==== Reflectivity Threshold ====

The reflectivity threshold to get a new segment is a percentage of the average intensity of last segment points. 

==== Dashed Lines ====

=== High Reflective Pts Percentage ===

Use this percentage of higher reflectivities to calculate next reflectivity threshold. eg. next threshold is the average intensity of 10% higher intense point multiplied by intensity threshold parameter. 

=== Consecutive Segs Null Max ===

Maximum number of consecutive null segments.

=== PC Pixel Size ===

Increase pixel size to reduce number of point cloud points used.

==== Solid Lines: Gap Distance Max ====

The length of the maximum gap on a solid road mark.


====== Output ======

==== Feature Lengt Max ====

The maximum length for a feature. Detection continues as far as possible if this value is zero.

==== Final line Distance Points ====

Distance between the points on the final line

==== Dashed Lines: Resturn Dashed Line Segments ====

Should a dashed line be segmented into its units?