• Entry
  • Reader's guide
  • Entries A-Z
  • Subject index

Image Registration

  • By: Yun Zhang & Zhen Xiong
  • In: Encyclopedia of Geography
  • Edited by: Barney Warf
  • Subject:General Geography, Earth & Environmental Science

Image registration is the process of precisely overlaying two (or more) images of the same area through geometrically aligning common features (or control points) identified in the images. The images can be taken at different times, from different viewpoints, and/or by different sensors. The registered images can be used for different purposes, such as change detection if the images are taken at different times, digital elevation model generation or shape reconstruction when the images are collected from different viewpoints, information integration when the images are taken by different sensors, and image mosaicking when the images have overlapping areas.

Figure 1 shows an example of image mosaicking, where the features 1, 2, 3, 4, 5, 6 and 1', 2', 3', 4', 5', 6’ are the common control ...

    • Loading...
    locked icon

    Sign in to access this content

    Get a 30 day FREE TRIAL

    • Watch videos from a variety of sources bringing classroom topics to life
    • Read modern, diverse business cases
    • Explore hundreds of books and reference titles