Introduction What is Pix4D? Pix4D is a photogrammetry software often used with UAS data for 3D mapping purposes. What products does it generate? Pix4D can be used to create orthomosaic images, terrain and surface models, animated flight paths, and more. These generations require imagery to have at least a 75% frontal overlap, and a 60% side overlap (in more uniform fields these percentages jump up to 85% and 70% respectively). Both nadir and oblique images can be used. However, with oblique images, the sensor angle must be between 0 and 45 degrees and pointing in both track to the center of the corridor. Additionally, multiple flights can be processed together as long as the images have the proper amount of overlap, and meteorological conditions are fairly similar. Ground control points can be used, but are not required, in Pix4D. They can be used as a georeference for the images which will help reduce some of the noise and distortion that can occur in data processing. ...
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