![]() ![]() Pix4D has combined machine learning and computer vision to pinpoint the exact center of a GCP almost instantly with pixel-level accuracy. Upload the information to Pix4Dcloud Advanced, and our algorithms will do the rest - marking the GCPs targets and delivering accurately georeferenced results. You can now process your project with GCPs on our browser-based platform, Pix4Dcloud Advanced.įor this, you will need drone images and basic information about your GCPs, such as the coordinate values, the coordinate system, and the size of the targets. Now, you can make time for other things while AutoGCPs marks your ground control point targets in your images for you. There's no longer a need for someone to spend time pinpointing the exact center of the target in every image. ![]() With Pix4Dcloud Advanced and Pix4Dengine, the new AutoGCPs feature automatically marks your GCPs for you. What if there was a solution to avoid the manual marking of GCPs in projects? If you include GCPs, the absolute accuracy of a project can improve from plus or minus a handful of meters to plus or minus a few centimeters.ĪutoGCPs: the next step in achieving accurate results But for land surveying, earthwork, topographic surveys, or volume calculations, more accurately georeferenced outputs are typically required to get the job done. This degree of accuracy may be more than sufficient for environmental monitoring or 3D modeling projects which only require relative accuracy. Any point in your project will typically be within 1 and 10 meters of its real-world location. Without GCPs, the project is georeferenced solely using the drone’s GNSS receiver. Why are GCPs important and are they always needed? They’re almost always black and white because it’s easier to recognize high contrast patterns. The shape leaves very little ambiguity about where the ‘point’ of a ground control point is. Typically they look like a small section of a checkerboard. When you mark GCPs on images, you link the images with points measured on the ground, which helps georeference the project and enhance the accuracy of your results. Ground control points can be anything that can be easily recognized in the images. GCPs are points with known coordinates that can easily be identified in images. ![]()
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