Photogrammetry is the discipline of obtaining reliable information about physical objects and environments through recording and analysing photographic images.
Photogrammetric Imaging System
A photogrammetric imaging system uses photographs to create 3-D models of objects, environments, or people. It’s a non-contact method that uses overlapping images to derive precise measurements.
How it works
- Place or use reference points on the spatial object/scene being measured. These points can be coded or uncoded.
- Take overlapping photos of the object from different angles.
- Use software to process the images and generate a 3-D model. The software considers factors like camera position, lens distortion, and object coordinates.
- The software generates a 3-D point cloud, which can be used for analysis.
Applications
- Industrial quality assurance: Photogrammetry can be used to inspect components and ensure quality.
- Environmental monitoring: Photogrammetry can be used to create accurate maps of land and underwater areas, and the latter can help with ocean environmental monitoring, marine archaeology, and more.
- Smart manufacturing: Photogrammetry can be used to automate the inspection of parts and accelerate innovation.
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