Fly at a lower altitude - Flying at a lower altitude serves two purposes. It captures more details in the landscape and therefore more data points to work with. Low altitude flights also result in a greater number of overall images, again increasing the probability of matching more common points on a map.  

Use a higher overlap - Increasing the overlap for a flight is another way to create more matched points and greater accuracy. Overlap refers to the percentage of both side lap and front lap. Side lap is the percentage of overlap between each leg of a flight, while front lap refers to the percentage of overlap between one image and the next and is  balance between accuracy and large image quantity. 

Use a mechanical shutter camera - any out-of-the-box drone cameras use a rolling shutter. This means that the camera records each frame line-by-line from top to bottom. When taking videos or photographs, this helps reduce motion blur. However, it can also sometimes cause what’s known as “rolling shutter effect,” where surfaces in a photograph appear warped because the camera-object relation changed before the full image was recorded. An image that is warped in this way makes it difficult for drone mapping software to match points on a map, which as we talked about above, negatively affects the map’s accuracy.