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Statements

Subject Item
n2:RIV%2F68378297%3A_____%2F14%3A00436596%21RIV15-MK0-68378297
rdf:type
skos:Concept n20:Vysledek
rdfs:seeAlso
http://cosch.info/documents/10179/108557/2013_Denkmaeler+3D_Valach_Vrba_Fila+et+al.pdf/d7cf0a61-ddf4-41f4-a6d7-24fa172529c5
dcterms:description
The paper describes technical and procedural implementation of an optical method for digitisation of 3D surfaces for documentation, monitoring and virtual replication of cultural heritage objects. The technique is based on the so-called photometric stereo method utilising the relationship between apparent brightness of a point on the object's surface and its orientation towards direction of illuminating light. The method yields the field of surface slopes first, which can be further transformed into surface topography. Although used less frequently than methods based on stereoscopic principles, this technique can be advantageous for digital recordings of the objects for several reasons. For example, it is easy to acquire surface texture and the surface topography in order to preserve the complete information about the object. Another advantage, implied by underlying physical principle, concerns the precision of the method being independent on the distance to the studied object. Furthermore, the measurement resolution of the method can be easily tuned to roughness and variation of the object's surface. The authors explain the potential of the method further by demonstrating an innovative technique of image processing that may benefit from a set of redundant data acquired from the surface. The processing 'recognises' 'bad' areas in images and ignores them while mining out all useful data in remaining part of the image. Improvement of objects' surface depiction, using a multiple-im The paper describes technical and procedural implementation of an optical method for digitisation of 3D surfaces for documentation, monitoring and virtual replication of cultural heritage objects. The technique is based on the so-called photometric stereo method utilising the relationship between apparent brightness of a point on the object's surface and its orientation towards direction of illuminating light. The method yields the field of surface slopes first, which can be further transformed into surface topography. Although used less frequently than methods based on stereoscopic principles, this technique can be advantageous for digital recordings of the objects for several reasons. For example, it is easy to acquire surface texture and the surface topography in order to preserve the complete information about the object. Another advantage, implied by underlying physical principle, concerns the precision of the method being independent on the distance to the studied object. Furthermore, the measurement resolution of the method can be easily tuned to roughness and variation of the object's surface. The authors explain the potential of the method further by demonstrating an innovative technique of image processing that may benefit from a set of redundant data acquired from the surface. The processing 'recognises' 'bad' areas in images and ignores them while mining out all useful data in remaining part of the image. Improvement of objects' surface depiction, using a multiple-im
dcterms:title
Digitising 3D surfaces of museum objects using photometric stereo-device Digitising 3D surfaces of museum objects using photometric stereo-device
skos:prefLabel
Digitising 3D surfaces of museum objects using photometric stereo-device Digitising 3D surfaces of museum objects using photometric stereo-device
skos:notation
RIV/68378297:_____/14:00436596!RIV15-MK0-68378297
n4:aktivita
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n4:aktivity
P(DF11P01OVV001)
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n12:2015
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n13:D
n4:duvernostUdaju
n19:S
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n14:predkladatel
n4:idSjednocenehoVysledku
11553
n4:idVysledku
RIV/68378297:_____/14:00436596
n4:jazykVysledku
n11:eng
n4:klicovaSlova
cultural heritage; 3D modelling; photometric stereo; surface topography documentation
n4:klicoveSlovo
n9:photometric%20stereo n9:surface%20topography%20documentation n9:cultural%20heritage n9:3D%20modelling
n4:kontrolniKodProRIV
[38C04040F89A]
n4:mistoKonaniAkce
Dortmund
n4:mistoVydani
Dortmund
n4:nazevZdroje
COSCH e-Bulletin
n4:obor
n18:AL
n4:pocetDomacichTvurcuVysledku
5
n4:pocetTvurcuVysledku
5
n4:projekt
n16:DF11P01OVV001
n4:rokUplatneniVysledku
n12:2014
n4:tvurceVysledku
Vrba, David Fíla, Tomáš Bryscejn, Jan Vavřík, Daniel Valach, Jaroslav
n4:typAkce
n8:EUR
n4:zahajeniAkce
2013-10-16+02:00
s:issn
2409-9503
s:numberOfPages
4
n17:hasPublisher
The LWL Industrial Museum Zeche Zollern