Calculating Tree Diameters from Mobile Device Camera

• Bridgewiz Engineering

• General Directorate of Forestry

• 2022

An Android application that uses machine learning (YOLO v3) and a set of image processing tools to measure the diameters of standing and cut trees in pinpoint accuracy from a single photo. The distance measurement is done by a USB-C TOF (Time of Flight) sensor. The application is designed to be used by forest workers and researchers to measure the diameters of trees in the field. The application finds the target tree bounding box with a custom-trained model and then uses another custom-trained model to locate tree edges. The app is expected to calculate the result in <2 seconds with 95% accuracy.