Aerial photos, editing and digitizing
Objectives:
Use aerial photographs as a source of digital data for GIS. Tasks include:
Use aerial photographs as a source of digital data for GIS. Tasks include:
- georeferencing an aerial photograph from ‘image space’ (e.g. as captured by a camera or scanner) to
- ‘real world space’ (e.g. a geographic or projected coordinate system)
- consideration of image resolution and distortion
- on-screen digitising of vector features and sources of error
- addition of feature attributes