Photogrammetry: Difference between revisions
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[[Photogrammetry]] is | [[Photogrammetry]] is when you create a realistic 3D scene by taking a series of photographs and combining them using specialized software. The software takes measurements from conventional digital photographs to find the exact position of surface points. This technology enables the production of precise 3D models of real subjects for scientific simulations, entertainment, medicine, or archiving. | ||
==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|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). | ||
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===Agisoft Photoscan=== | ===Agisoft Photoscan=== | ||
[[Agisoft PhotoScan]] is developed Agisoft LLC located in St. Petersburg in Russia. This stand-alone software is the leader in photogrammetric digital image processing and generation of spatial 3D data. The software comes in two different editions | [[Agisoft PhotoScan]] is developed Agisoft LLC located in St. Petersburg in Russia. This stand-alone software is the leader in photogrammetric digital image processing and generation of spatial 3D data. The software comes in two different editions: Standard and Professional. Both editions support photogrammetric triangulation, generation and editing of a dense point cloud, generation and texturing of the 3D model, spherical panorama stitching, and fisheye camera lenses. The Professional Edition additionally comes with support for spherical and cylindrical cameras, classification of dense point cloud, DEM, python scripting, network processing, and many others. | ||
===3DF Zephyr Pro=== | ===3DF Zephyr Pro=== | ||
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==References== | ==References== | ||
<references /> | <references /> | ||
http://steamcommunity.com/games/250820/announcements/detail/117448248511524033 | |||
http://www.theastronauts.com/2014/03/visual-revolution-vanishing-ethan-carter/ | |||
[[Category:Terms]] [[Category:Technology]] | [[Category:Terms]] [[Category:Technology]] | ||