Uncertainty propagation
Definition
The mathematical process of carrying measurement errors through a calculation to estimate the error in the final result. For photogrammetric measurements, it accounts for pixel localisation error, calibration uncertainty, and reference dimension tolerances.
Related terms
- Camera calibration
- The process of determining the camera's intrinsic parameters: focal length, principal point, and lens distortion coefficients. Calibration can be done from a...
- Homography
- A 3x3 projective transformation matrix that maps one plane to another. For a flat scene (a floor, a wall, a road surface),...
- Projective geometry
- The mathematical framework describing how 3D points are mapped to 2D image coordinates through the camera model. Lines remain lines, but distances...
- 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...
- Vanishing point
- The image point where a set of parallel real-world lines converges due to perspective. Identifying vanishing points for multiple sets of parallel...
Explained in
- Photogrammetry and Metric Analysis from ImagesThe mathematical process of carrying measurement errors through a calculation to estimate the error in the final result. For photogrammetric measurements, it a...