Oblique images can be used standalone or incorporated into the photogrammetry process to include the orthomosaic, mesh, or model that is generated. Nadir imagery is generally not sufficient to build an accurate point cloud of a site that contains vertical surfaces. Site Scan allows you to take oblique images autonomously, however you also have the option of taking oblique images manually.
As previously mentioned, there is no need to acquire these images manually. You can plan out an autonomous “Crosshatch survey” which would also help you complementing the nadir imagery collected using “Area Survey“.
Follow the steps below to acquire oblique images manually :