Photogrametry is the art and science of making accurate measurements by means of aerial photography:

  • Analog photogrammetry (using films: hard-copy photos)
  • Digital photogrammetry (digital images)
  • Aerial photographs were the first form of remote sensing imagery.

Types of vantage points to acquire photographs?

  • Vertical vantage points
  • Low-oblique vantage points
  • High-oblique vantage points