An image with a more pixels contains more information, which means there is a greater probability of matching common points. Because drone mapping software like DroneDeploy processes maps by taking a series of individual images and matching the common points between them, the more common points that can be matched, the higher the accuracy of the map. What exactly does resolution have to do with map accuracy? Put simply, increasing the resolution of an image decreases its ground sampling distance (GSD), or in other words, it reduces the space between individual pixels in an image. For operators looking to upgrade further, some drone models also allow users to switch out cameras and sensors. Using a better camera results in much more advanced imagery with a higher resolution. One of the simplest things you can do to improve accuracy is to increase the resolution of your individual images, which can be achieved by using a high-quality camera with a powerful sensor, like the ones found on Inspire 2 and Phantom Pro 4. To this end, drone operators should always try to plan missions in advance, know the weather and take steps to avoid mapping in poor conditions.īright spot in center of wheat field indicates a section that was mapped when the sun came out during an otherwise cloudy day Rolling cloud cover is also problematic, because consistent imagery throughout an entire map is important, and rolling clouds tend to create shadows and inconsistent light. “10 am-2 pm is going to give you the best light. Learn more by watching our recent webinar. While it’s possible, flying in winds higher than 10 mph can have a negative impact on the overall quality of your drone maps. Where agriculture is involved, the movement of crops in the wind blurs imagery even more. Drones - especially lighter models - have difficulty staying steady during periods of high wind, which can make for poor image quality. Strive to fly while the sun is highest in the sky and avoid weather patterns such as high winds and cloud cover.Īgriculture expert Chad Colby, who has been using drones for several years, learned early on that the high winds and rolling cloud cover which are common on Midwestern farms should be avoided during mapping. It may sound basic, but it always bears mentioning that weather conditions greatly affect image quality, which in turn affects a map’s overall accuracy. On that note, here are seven ways to improve the accuracy of your drone maps: Whether you’re a specialist who wants to use drones to increase the efficiency of your existing day-to-day workflow, or a drone service provider looking to expand the range of your business, this post should help you improve the overall accuracy of your drone maps with some key best practices to keep in mind moving forward. With the right tactics and technology, it’s possible to create maps and 3D models that are accurate enough for even the most advanced projects. For operators looking to improve the accuracy of their maps even further, there are a number of concrete steps that can take your maps to an advanced level suitable for commercial purposes across industries such as agriculture, construction, and mining. Even straight out of the box, with average conditions and a typical drone, remote pilots can make maps with enough accuracy for a wide range of projects. As we talked about in an earlier post, advances in technology mean it’s now possible to create highly accurate drone maps.
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