Orthorectification
The orthorectification gives the user the possibility to orthorectify an aerial image. The result is an image with its true distances, its accurate representation of the surface of the earth. You need, besides the aerial image, a DEM image and a RPC file.
Orthorectification of an image:
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choose a name for the result, the orthorectified image.
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select the output category for the result through the button Output category...
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choose the aerial image which shall be orthorectified by clicking File....
Select the desired interpolation method for the aerial image. The options are: Bilinea, Bicubic and Nearest Neighbour.
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select the DEM image which will be needed for knowing the height of the surface by clicking Plan information....
Select the desired interpolation method for the DEM image. The options are: Bilinea, Bicubic and Nearest Neighbour.
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choose the RPC file which holds the values for the rational polynomial coefficients by clicking File....
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BBOX
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If don't want to define your own BBOX, then leave the Configure Manually item unmarked.
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If you want to define your own BBOX, then mark the Configure Manually item, to be able to choose the BBOX by clicking on Choose....