Photogrammetry: Difference between revisions
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==General Objective== | ==General Objective== | ||
The general objective is to capture the position of every point in the scene by using at least two cameras with different angles. Dynamic scenes such as people or animals in motion can be captured with a complex multi-camera setup. The resulting form of the subject is then calculated via a specialized software like [[Agisoft PhotoScan]], [[Autodesk 123D Catch]], or [[Autodesk Memento]]. Compared to 3D scanning, photogrammetry can capture all data at once, which makes scanning more convenient. However, this requires studio setup and the results are still not as detailed as 3D scans. | The general objective is to capture the position of every point in the scene by using at least two cameras with different angles. Dynamic scenes such as people or animals in motion can be captured with a complex multi-camera setup. The resulting form of the subject is then calculated via a specialized software like [[Agisoft PhotoScan]], [[Autodesk 123D Catch]], or [[Autodesk Memento]]. Compared to 3D scanning, photogrammetry can capture all data at once, which makes scanning more convenient. However, this requires studio setup and the results are still not as detailed as 3D scans. | ||
{{#ev:youtube|gGbLKkWZCgY|350|Photogrammetry in [[SteamVR]]}} | {{#ev:youtube|gGbLKkWZCgY|350|right|Photogrammetry in [[SteamVR]]}} | ||
==Types of Photogrammetry== | ==Types of Photogrammetry== | ||
Photogrammetry is usually divided into aerial and close range. A large part of modern maps was created using aerial photogrammetry where a camera is mounted in an aircraft pointed vertically towards the ground. Such data can be used for creating digital models or 3D representations of a terrain’s surface with a method known as a digital elevation model (DEM), digital terrain model (DTM), or digital surface model (DSM). | Photogrammetry is usually divided into aerial and close range. A large part of modern maps was created using aerial photogrammetry where a camera is mounted in an aircraft pointed vertically towards the ground. Such data can be used for creating digital models or 3D representations of a terrain’s surface with a method known as a digital elevation model (DEM), digital terrain model (DTM), or digital surface model (DSM). | ||