Flight Planning with Live Map
For best results, we recommend using the default flight settings for altitude and overlap in the DroneDeploy app.
Recommended Flight Settings
Altitude: 250 ft (75m) or higher
Overlap: 65% sidelap and 75% frontlap
Though, we realize that sometimes you made need to alter your flight settings depending on your environment. If these cases, we have put together some recommended best practices surrounding areas with taller objects and elevation. Read on the learn more.
Mapping Tall Objects and Environments with Varied Elevation
If your mission area is relatively flat — and does cover tall objects like buildings or trees — then you can fly lower, but we do not recommend you fly lower than 150ft (45m). When flying lower than 250ft, we suggest you increase your sidelap to 80%.
Increase Sidelap When Mapping Areas with Varied Elevation
If you map an area that has many tall objects such as buildings and trees, or there are is terrain with varying elevation — like hills, cliffs, or pits — then we recommend you fly higher and increase your sidelap to 70%. For extreme cases, you can increase your sidelap to 80%.
Below are some general tips to ensure you get the best results when mapping areas with tall objects and elevation.
- Adjust your flight direction so legs are not as long — and there is more sidelap.
- The taller the buildings are in your area, the greater sidelap you will want.
- If you’re flying low, then we suggest you fly with a higher sidelap.
- Avoid buildings taller than five stories.
Why Sidelap Helps When Mapping Areas with Varied Elevation
By increasing the sidelap of a mission, you are increasing the number of times an area on the map will be captured in a Live Map frame. Every time a new frame gets added to the Live Map, the area captured in that frame refreshes, which orthorectifies that section of the map. By increasing the number of times an area refreshes, you are increasing the amount — and quality — of data that is used to correctly orthorectify a given area of the map.
Setting Frontlap and Flight Speed
If you are mapping an area with complex features or geometry, then the best way to improve the quality of your Live Map is to decrease your flight speed. You can do this by:
- Limiting the max flight speed
- Increasing your frontlap will also decrease your max flight speed, but remember that this causes you to take more images. Extra images will only be an issue if you are mapping large areas.