Tag: Photogrammetry

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Aerial Photogrammetry

The very high-resolution images captured through aerial platforms like drones, helicopters or aircraft yield geospatial data. These images are overlapped to reconstruct the 2D orthophoto or 3D DEMs. During this process, stereo photogrammetry retrieves accurate geographic information by comparing variations of perspective between overlapping images or more. The use of aerial photogrammetry by the GIS… Continue reading Aerial Photogrammetry

Photogrammetry

The study of obtaining geometric information from photos is the fundamental component of photogrammetry where it builds precise and comprehensive three-dimensional models of objects or landscapes by applying the principles of perspective and triangulation. To analyze and extract spatial information from these overlapping photos, specialist software must first be used to capture the images from… Continue reading Photogrammetry