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Photogrammetry images
LOCATION
SURVEYING EQUIPMENT
ON-SITE TIME
COMPLETION TIME
FINAL PRODUCT
Gniew, Poland
Scanner Riegl VZ-400, Leica TCRA 1101, Canon 5D MK2
3 days 2 person
4 weeks one person
Orthoimages of front façades

Castle of the Teutonic Knights Order in Gniew was erected on square plan in the XII and XIV century, it is the most powerful stronghold on the left bank of the Vistula river. Originally inhabited by the Teutonic commanders and then rebuilt several times and it changed it’s purpose for a granary, and later for prison. It was burned in the Great Fire of 1921. The fortress since 1968 has been successively rebuilt and restored, so now it’s open for public it also holds many performances and productions of historical and tournaments.
Orthophoto of elevation was created form a very accurate 3d point cloud data and high-resolution digital photos which by means of the proper photogrammetric methods have been converted to the orthogonal views. Pixel size of the metric image equal to 2.5 mm provides a very convenient and accurate plans for conservator works. Additional ortho generated from point cloud highlights some details that are not visible on an RGB image. All are metric images have datums in local co-ordinate system and may become a basis for measuring length and area.

Orthophoto in RGB of front façade - pixel size 2,5mm

Orto image from the point cloud - pixel size 10mm

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