Creating DSMs DTMs and Orthomosaics in WebODM From Drone Images

Purpose

The purpose of this tutorial is to teach the user how to use WebODM, in order to create surface models and orthomosaics from a provided data set of photos taken with a consumer drone.

Introduction

What is WebODM, and why would you use it?

WebODM (standing for Open Drone Map) is an open-source software package with a graphical user interface that allows users to process remotely sensed data from drones into various types of outputs. WebODM allows the user to process RGB colour images, or multispectral images into outputs including: DSMs, DTMs, pointclouds, orthomosaics, and other formats. The software allows for the use of ground control points, and rolling shutter correction. For more information, visit the WebODM website here: https://www.opendronemap.org/webodm/. In this tutorial we will be learning how to install and use this software with a sample set of RGB drone images to create a DSM, DTM and orthomosaic. We will also have the software output an accuracy report.