Dense point cloud
Definition
A set of millions of three-dimensional coordinate points, each with an RGB colour derived from the photographs, that together represent the surface geometry of the recorded scene.
Related terms
- Ground Control Point (GCP)
- A physical marker in the scene whose three-dimensional coordinates have been measured independently by total station or GPS. Assigning those coordinates to...
- Orthophoto
- A geometrically corrected aerial or close-range photograph from which the distortions caused by camera tilt and terrain relief have been removed, so...
- Reprojection error
- The distance in pixels between where the photogrammetry software predicts a feature point should appear in each photograph (based on its estimated...
- Structure-from-Motion (SfM)
- A photogrammetric technique in which overlapping images from a drone or camera, processed by software, generate a three-dimensional point cloud and textured...
- Terrestrial laser scanning (TLS)
- A ground-based 3D LIDAR survey instrument that captures millions of range measurements per scan to produce a millimetre-accurate point cloud of the...
Explained in
- Close-Range Photogrammetry and 3D RecordingA set of millions of three-dimensional coordinate points, each with an RGB colour derived from the photographs, that together represent the surface geometry of...