Vegetation Detection

Menu: Analyze / Vegetation

The Vegetation Detection tool identifies points that belong to vegetal structures by analyzing normal dispersion. Points with highly dispersed normals are classified as Class 3 (Vegetation), following ASPRS standards.

1. Vegetation Detection Settings

Variation per Cell (in percentage)

• Defines the percentage of variation between a point's normal and the mean plane in the surrounding tile.

• Higher variation values help detect dispersed structures like vegetation, while lower values may reduce false positives.

Minimum Cell Size (in distance units)

• Determines the grid size for processing.

• Smaller values increase classification accuracy but increase processing time.

• The cell size must be smaller than the project cell size, or else the default project cell size will be used.

  • Project cell size information is available in File → Project Info.

2. Processing Area Limitations

Starting Point

• Defines the initial point for classification.

• Can be:

  • Manually set by entering coordinates.

  • Picked from the point cloud using the "Pick" button.

• For best performance, select a known vegetation point to reduce processing time.

• If Limit by Radius is enabled, classification will be centered around this point.

Limit by Radius (in distance units)

• Restricts processing to a circular area centered on the starting point.

• Useful for testing parameter settings or processing specific areas separately.