Tree Segmentation in QGIS

Introduction¶

Learning Objectives¶

Tree Segmentation Panel Overview¶

Loading Pre-trained Models¶

Sample Data¶

Available Models¶

Loading a Model¶

Running Predictions¶

Prediction Modes¶

Configuring Prediction Parameters¶

Running a Prediction¶

Interpreting and Styling Results¶

Exporting Results¶

Vector Output¶

Raster Output¶

Training Data Export¶

Practical Considerations¶

Bounding Boxes vs. Crown Outlines¶

Image Resolution and Sensor Match¶

Geographic and Ecological Context¶

Seasonal Timing¶

Processing Performance¶

Key Takeaways¶

Exercises¶

Exercise 1: Tree Crown Detection with Parameter Tuning¶

Exercise 2: Single Image vs. Large Tile Comparison¶

Exercise 3: Training Data Export and Review¶

Exercise 4: Ecological Detection Beyond Trees¶