<div class="csl-bib-body">
<div class="csl-entry">Wild, B., Verhoeven, G. J., & Pfeifer, N. (2023). Tracking the urban chameleon - towards a hybrid change detection of graffiti. In <i>Volume X-M-1-2023, 2023 | 29th CIPA Symposium “Documenting, Understanding, Preserving Cultural Heritage. Humanities and Digital Technologies for Shaping the Future”</i> (pp. 285–292). ISPRS, Copernicus Publications. https://doi.org/10.5194/isprs-annals-X-M-1-2023-285-2023</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/189442
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dc.description.abstract
Colourful and ever-changing: Graffiti can be considered the urban chameleon skin. At the Donaukanal (Eng. Danube Channel), Vienna's central waterway and one of the largest and most active graffiti-scapes worldwide, this metaphor applies like hardly anywhere else. Every day a multitude of graffiti is destroyed by the creation of new works. Recently, efforts have been made to mitigate this constant loss of cultural heritage along the Donaukanal by systematically documenting the graffiti, mainly using photography and photogrammetry. However, keeping track of the newly added works is very time-consuming and often like finding needles in a haystack, considering the large extent and high volatility of the monitored area. Thus, an automated graffiti change detection would significantly reduce the effort and avoid overlooking graffiti.This contribution outlines the main challenges in image-based change detection for cultural heritage and proposes a hybrid graffiti change detection method. The investigated method exploits and combines an established pixel-based change detection algorithm, the Iteratively Multivariate Alteration Detection, with a novel descriptor-based method. The latter relies on image features, rather than pixels as analysis unit and can robustly filter false alarms from the high-performing but noise-prone pixel-based approach. Overall, the results indicate that the proposed method can largely automate image-based change detection of graffiti-scapes. It can uncover graffiti-related changes and robustly distinguish them from other image differences such as shadows but tends to overlook small-scale graffiti, indicating the need for further fine-tuning.
en
dc.description.sponsorship
Österr. Akademie der Wissenschaften
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dc.language.iso
en
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dc.relation.ispartofseries
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
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dc.subject
Change detection
en
dc.subject
Computer vision
en
dc.subject
Cultural heritage
en
dc.subject
Feature matching
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dc.subject
Graffiti
en
dc.subject
Multivariate alteration detection
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dc.subject
Photogrammetry
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dc.subject
SIFT
en
dc.subject
Street art
en
dc.title
Tracking the urban chameleon - towards a hybrid change detection of graffiti
en
dc.type
Inproceedings
en
dc.type
Konferenzbeitrag
de
dc.rights.license
Creative Commons Namensnennung 4.0 International
de
dc.rights.license
Creative Commons Attribution 4.0 International
en
dc.contributor.affiliation
Ludwig Boltzmann Gesellschaft—LBI ArchPro, Austria
Volume X-M-1-2023, 2023 | 29th CIPA Symposium "Documenting, Understanding, Preserving Cultural Heritage. Humanities and Digital Technologies for Shaping the Future"
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tuw.container.volume
XLVIII-M-2-2023
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tuw.peerreviewed
true
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tuw.book.ispartofseries
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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tuw.relation.publisher
ISPRS, Copernicus Publications
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tuw.project.title
INventory and DIsseminate Graffiti along the DOnaukanal
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tuw.researchTopic.id
E4
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tuw.researchTopic.name
Environmental Monitoring and Climate Adaptation
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tuw.researchTopic.value
100
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tuw.publication.orgunit
E120-07 - Forschungsbereich Photogrammetrie
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tuw.publication.orgunit
E120 - Department für Geodäsie und Geoinformation
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tuw.publisher.doi
10.5194/isprs-annals-X-M-1-2023-285-2023
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dc.identifier.libraryid
AC17202086
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dc.description.numberOfPages
8
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tuw.author.orcid
0000-0003-4825-9604
-
tuw.author.orcid
0000-0002-2348-7929
-
dc.rights.identifier
CC BY 4.0
de
dc.rights.identifier
CC BY 4.0
en
tuw.event.name
29th CIPA Symposium “Documenting, Understanding, Preserving Cultural Heritage: Humanities and Digital Technologies for Shaping the Future"
en
tuw.event.startdate
25-06-2023
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tuw.event.enddate
30-06-2023
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Florence
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tuw.event.country
IT
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tuw.event.presenter
Wild, Benjamin
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tuw.event.track
Multi Track
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wb.sciencebranch
Geodäsie, Vermessungswesen
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wb.sciencebranch
Informatik
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wb.sciencebranch
Physische Geographie
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wb.sciencebranch.oefos
2074
-
wb.sciencebranch.oefos
1020
-
wb.sciencebranch.oefos
1054
-
wb.sciencebranch.value
70
-
wb.sciencebranch.value
15
-
wb.sciencebranch.value
15
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item.openaccessfulltext
Open Access
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item.cerifentitytype
Publications
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item.languageiso639-1
en
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item.openairecristype
http://purl.org/coar/resource_type/c_5794
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item.grantfulltext
open
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item.fulltext
with Fulltext
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item.mimetype
application/pdf
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item.openairetype
conference paper
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crisitem.author.dept
E120-07 - Forschungsbereich Photogrammetrie
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crisitem.author.dept
Ludwig Boltzmann Gesellschaft—LBI ArchPro, Austria