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0.25 m

3 record(s)

 

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    Product of aerial survey (from airplane, helicopter) are aerial images as well as external orientation elements, that are used as final product or as an input parameter for further image processing. In the cyclical aerial survey of Slovenia professional (recently digital, large format) aerial cameras are used. These cameras use simultaneous surveying of aerial photos in several channels (panchromatic, red, green, blue, near infrared). Usuall ground sampling distance (GSD) is 0.25 m.

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    In the Remote Sensing Database the remote sensing data, ortophoto and remote sensing technical data are being managed.

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    Ortofoto je aerofotografija, ki je z upoštevanjem podatkov o reliefu in absolutne orientacije aerofotografij pretvorjena iz centralne v ortogonalno projekcijo. Pri tem so odstranjeni vplivi optike aerofotoaparata, njegovega nagiba in vpliv razgibanosti terena. Mersko so primerljivi z linijskimi kartami, razdelitev na liste je enaka kot pri TTN5. Vsi ortofoti so na voljo v formatu TIFF. Izdelujejo se različni ortofoti glede na ločljivost in barvni spekter: - DOF025 - barvni (RGB) ortofoto z dolžino talnega intervala (DTI) 0,25 m - DOF050 - barvni (RGB) ortofoto z dolžino talnega intervala (DTI) 0,50 m - DOF050IR - barvni bližnje infrardeči (IR, R in G) ortofoto z dolžino talnega intervala (DTI) 0,50 m