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www.tc-freyung.th-deg.de
Uncertainty in the spatial metadata
of historical photographs
A geomatic and photogrammetric driven
argumentation
Anne Weinfurtner
www.tc-freyung.th-deg.de
2
Motivation
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The Approach
3D reconstruction
Long-term archiving
Open access to selected archive collections
Photo georeferencing
Photo documentation
Computer vision based image classification
www.tc-freyung.th-deg.de
4
Point coordinates
Location of the photographer?
Geoname
County? City? District?
Current standard for spatial information
?View on ?esk¨¦ Bud¨§jovice¡°
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5
Spatial uncertainty of geonames
?esk¨¦ Bud¨§jovice
?
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The Web portal
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Object_Coordinates
x_img
y_img
x_map
y_mapx_photographer
y_photographer
x
y
x
y
Georeferencing of photos and depicted objects
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Repetitive quality check of VGI
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? x
20 m
100 m
Outer orientation
? y
opening angle
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x (Longitude)
y (Latitude)
¦Ë (Tilt)
¦Õ (Orientation)
x,y
Outer orientation
¦Ë
¦Õ
x
y
z
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3D reconstruction of University of South
Bohemia in ?esk¨¦ Bud¨§jovice;
Photograph: Museum Fotoatelier Seidel
3D reconstruction
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Anne Weinfurtner, M. Eng.
Technische Hochschule Deggendorf
Grafenauerstr. 22
94078 Freyung, Germany
anne.weinfurtner@th-deg.de
www.photostruk.de
Contact

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Uncertainty in the spatial metadata of historical photographs ¨C A geomatic and photogrammetric driven argumentation