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AGILE
2009
Springer

Identification of Practically Visible Spatial Objects in Natural Environments

12 years 6 months ago
Identification of Practically Visible Spatial Objects in Natural Environments
Image retrieval of landscape photographs requires accurate annotation using multi-faceted descriptions relating to the subject and content of the photograph. The subject of such photographs is dominantly the terrain and spatial objects visible from the photographer’s viewpoint. While some spatial objects in the background may be obscured by foreground vegetation, other visible spatial objects beyond a certain distance may not present noteworthy elements of the captured scene (such as distant houses). Our aim is to assess approaches to improve the identification of practically visible spatial objects for image annotation. These approaches include the consideration of the apparent spatial object size and landcover information about occluding vegetation. These inputs are used to enhance viewshed analysis to accurately identify only spatial objects practically visible and therefore likely to be notable subjects of a photograph. The two approaches are evaluated in an experiment in a semi-...
Martin Tomko, Friedjoff Trautwein, Ross S. Purves
Added 26 May 2010
Updated 26 May 2010
Type Conference
Year 2009
Where AGILE
Authors Martin Tomko, Friedjoff Trautwein, Ross S. Purves
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