Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
4 Cards in this Set
- Front
- Back
|
What are the MAJOR distortions in air photos? |
- Tilt and Tip (pitch, yaw, roll of the aircraft because of turbulence) - Height displacement (changes in ground elevation) |
|
|
What are the MINOR distortions in air photos |
- Lens Distortions (how the lens focuses light) - Earth Curvature (higher up = more convex shape of the surface) - Atmospheric Refraction (refraction of light thru the atmosphere bends light toward camera) - Film Shrinkage (exposure/scanning can stretch/bend film) |
|
|
What are some uses of LiDAR |
- Finding vertical foreststructure (estimation of tree and stand heights and understory canopy) - Forest fire management (fuel mapping) - River surveys (understand depth, flow strength, width of the river) - Mapping (show the 3D view to plan roads, buildings, bridges and rivers) |
|
|
What are the competitors of LiDAR |
- Terrestrial Photogrammetry - Digital Camera Image Correlation |
