4. Examples
The chapter focuses on the principles and techniques of photogrammetry, specifically discussing aerial photography and its applications. It includes methodologies to calculate scales, relief displacement, and the use of stereo pairs for 3D elevation determination. The content is enriched with numerical examples and exercises to reinforce the theoretical concepts presented.
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Sections
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What we have learnt
- Aerial photography involves different types and uses in photogrammetry.
- Relief displacement is a critical concept that depends on various factors, including the elevation of photography.
- The scale of an aerial photograph can change based on terrain variability, requiring precise calculations.
Key Concepts
- -- Aerial Photography
- The practice of taking photographs from an aircraft or other flying object, used in mapping and spatial analysis.
- -- Relief Displacement
- The apparent displacement of an object on a photograph in relation to its true position, influenced by the object's height above the datum.
- -- Scale
- The ratio of a distance on a map or photograph to the corresponding distance on the ground, which can vary based on terrain.
- -- Stereovision
- The perception of depth produced by the brain when viewing two slightly different images from different angles, as seen in stereo pairs.
Additional Learning Materials
Supplementary resources to enhance your learning experience.