Drones create maps through a process known as photogrammetry, which involves capturing a series of overlapping images of the area being mapped and using specialized software to stitch those images together into a single, high-resolution map.

The drone captures aerial images of the area from different angles and altitudes, which are then processed using photogrammetry software to create a highly detailed maps or 3D models.

In this article you will learn:

To start mapping, you will need a few things:

1. A device for capturing data

You will need a drone with a camera and a GPS device, depending on the type of mapping you want to do. Many drones will work but market leaders, DJI, offers a great range at an affordable price.

2. Flight planning app

We recommend dronelink but there are others in market too, for example DJI has its own version.

3. Mapping software (ie; Birdi)

You will need software that can take the data you capture and turn it into a map. We offer a PAYG service for processing with a simple interface for you to easily assess your image coverage and request the outputs you require.

4. Knowledge of mapping techniques

Depending on the complexity of your mapping project, you may need to learn some mapping techniques. This could include things like how to use a GPS device, setting up flight settings, or how to interpret the imagery or outputs you have requested.

The type of drone you should use for mapping depends on several factors, including the size of the area to be mapped, the level of detail required, and your budget.

Here are some factors to consider:

1. Camera quality

The camera is one of the most important factors to consider when choosing a drone for mapping. Look for a drone with a high-quality camera that can capture high-resolution images with minimal distortion. A drone with a gimbal stabilization system can also help to ensure that the images are sharp and steady.

2. Flight time

Mapping missions can take several hours, so it's important to choose a drone with a long battery life. Look for a drone with a flight time of at least 20-30 minutes per battery.

3. Range

Depending on the size of the area to be mapped, you may need a drone with a longer range to ensure that it can cover the entire area. Look for a drone with a range of at least 2-3 miles.

4. Obstacle avoidance

Mapping missions often require flying at low altitudes, which can increase the risk of collision with obstacles such as trees and buildings. Look for a drone with obstacle avoidance sensors to help prevent accidents.

Some popular drones for mapping include the DJI Phantom 4 RTK, DJI Mavic 2 Pro - RTK, DJI Mavic 3 Pro - RTK, DJI Phantom 4 Pro, and the senseFly eBee X.

The main difference between a map and a model when using a drone is that a map is a 2D representation of the terrain or area being mapped, while a model is a 3D representation that includes elevation data.

A map created using a drone typically involves stitching together a series of high-resolution images to create a 2D map of the area. This map can be used to identify features or patterns, measure distances, or monitor changes over time. The map is typically georeferenced, which means that it includes location data that can be used to accurately place features on the map.

A model created using a drone, on the other hand, includes elevation data in addition to the 2D imagery. This elevation data can be obtained using a variety of techniques, including LiDAR (Light Detection and Ranging), which uses lasers to measure distances between the drone and objects on the ground, or photogrammetry, which uses overlapping images to create a 3D model of the terrain. The resulting 3D model can be used to create accurate topographical maps, measure volumes, or perform other analysis that requires detailed elevation data.

Both maps and models can be useful for a variety of applications, depending on the specific needs and requirements of the user.

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