Orthorectification of satellite images for the 2004 campaign of control with remote sensing
2005
Scholtz, P.,Soil Science and Conservation Research Institute, Bratislava (Slovak Republic) | Szocsová, I.,Soil Science and Conservation Research Institute, Bratislava (Slovak Republic)
The subsidies play a key role in agricultural sector and contribute to the prosperity of agricultural subjects. The subsidies to agricultural sector represent major part of European budget and that is why there is taken an emphasis to control the rightfulness of reception of subsidies. European Commission considers this fact and uses more methods of control. The most effective method is the Control with Remote Sensing. This method allows to control large areas in short time and costs relatively less. To increase the precision and reliability of controls European Commission tries to catch the trend to use satellite images with very high resolution. To process these data high level of quality is required, especially concerning the geometric precision. Many methods of orthorectification exist and each has its own requirements for the quality of input data. European Commission realizes importance of geometric accuracy of used satellite images and defines strict criteria. Several types of satellite images (high and very high resolution) and methods of orthorectification were used in the 2004 campaign of Control with Remote Sensing in Slovak Republic. Results of orthorectification of 2004 campaign satellite images were markedly better than the maximum allowed thresholds defined by European Commission.
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