[IP3-7-4-2] Planar geometric features

The most important geometric features of geographic objects are their size and shape. Shape refers to general form or outline of individual objects and can be quantified using different metric such as shape index, compactness, asymmetry, density, elliptic fit, roundness, rectangular fit etc.

External resources

• Blaschke, T., Hay, G.J., Kelly, M., Lang, S., Hofmann, P., Addink, E., Queiroz Feitosa, R., van der Meer, F., van der Werff, H., van Coillie, F., & Tiede, D. (2014). Geographic Object-Based Image Analysis – Towards a new paradigm. ISPRS Journal of Photogrammetry and Remote Sensing, 87, 180-191
• T.M. Lillesand, R.W. Kiefer, J.W. Chipman, 2008. Remote sensing and image interpretation, John Wiley & Sons, New York

Learning outcomes

• 2325 - Explain how the geometry of an object relates to its membership to a specific class

  Explain how the geometry of an object relates to its membership to a specific class

Self assessment

Outgoing relations

• [IP3-7-4-2] Planar geometric features subclassof [IP3-7-4] Spatial features