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Interpretation of aerial images or orthophotos deals with land use (e.g. degree of urbanization, tree cover) and is a controversal topic in agriculture. In the context of the common agrar policies of the EU, parcels used for farming are controlled using up-to-date image data. Thereby, both the boundaries and the actual land use are of interest. The background is the dedicated funding for agricultural production. 

Methods of - primarily automatic - change detection are used in agriculture and civil engineering. 

Landwirtschaftliche Flächenkontrolle

Presently, AVT works on a multi-year pro-ject in Denmark where all farming parcels are screened independently based on detailed instruc-tions (project title:„Screening af Markblokke“).