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results

INDIGO is an open-data and open-access project, operating according to the FAIR principles. Whereas all project data will become available at the project’s end via the ARCHE data repository, any scientific output can be found at different locations:

  • INDIGO’s Zenodo community
  • here! Below, one finds all relevant info and links to INDIGO’s soft- and hardware, oral and poster presentations, publications and symposia. Each section is directly accessible via the menu above.

software

The INDIGO team created AUTOGRAF, COOLPI and GRAPHIS, three software packages that are free to download from INDIGO’s GitHub account.

  • AUTOGRAF (AUTomated Orthorectification of GRAFfiti photos) is an open-source python-based Metashape add-on to automatically orthorectify (graffiti)  photos. Its source code can be found here.
  • COOLPI (COlour Operations Library for Processing Images) is an open-source Python toolbox including procedures for the colour correction of RAW photos. The code comes with an extensive manual.
  • GRAPHIS (Generate Regions and Annotations for PHotos using the IPTC Standard) is an open-source python-based software to create, visualise and annotate image regions and store them inside the image metadata according to the IPTC photo metadata standard. The source code is available here.

Besides AUTOGRAF, COOLPI and GRAPHIS, the INDIGO team also created a handful of scripts, the basics for an online graffiti dissemination platform and a graphical user interface to visualise graffiti-style categories.

  • the UrbanChameleon platform should culminate all project efforts and give users a distinctive perspective on the graffiti-scape along Vienna’s Donaukanal. Although the platform is live, there is not much to see yet. Nevertheless, the entire framework is open source.
  • Gottlieb Styles Visualiser or GSV: in her 2008 book Graffiti art styles: A classification system and theoretical analysis, Lisa Gottlieb presented a system to define various graffiti styles adequately. Since INDIGO supports Gottlieb’s approach to ‘objectify’ graffiti categorisation, the GSV was developed to make her approach more tangible and visual.
  • MATLAB Medley: various MATLAB-based scripts were programmed to clean, harmonise and convert the spectrometer files, the photos’ metadata and the logs of the GNSS receivers. Despite their lack of a GUI and being rather INDIGO-specific, these scripts are still shared online.

hardware

The INDIGO team has developed a device to record the camera’s exact 3D position and angular rotation in space at the moment of photo acquisition. This so-called exterior orientation is helpful for accurately locating the photos and significantly speeds up their processing.

Built from commercially available but cost-effective components in a 3D printed housing, this device connects to the hot shoe on top of the camera.

It receives a real-time kinematic correction signal from the Austrian EPOSA service (Echtzeit-Positionierung-Austria) to increase the accuracy of coordinates collected via satellite-based positioning systems like the American GPS or European GALILEO constellations.

All settings of the on-camera device get wirelessly controlled from any browser running on a tablet or smartphone. In addition, four status LEDs provide the user instant feedback on anything that’s going on with the device. A thorough assessment of this novel hardware solution will be reported in a future paper.

data sets

The INDIGO team created several free datasets which can be helpful for various purposes: two databases, two thesauri, and two image collections.

  • INDIGO Graffiti Literature Database: during the project’s duration, graffiti-related literature (with their PDF, if it was available) has been collected in a closed-source Citavi and an open-source Zotero database. The literature databases that are shared here do not include any PDFs to avoid possible copyright infringements.
    • The open-source Zotero database can be accessed via this link. The data-sharing platform Zenodo also offers an RDF and BibTex variant of this database (DOI: 10.5281/zenodo.8393824) for import to other reference managers.
    • Zenodo also features the *.ctv6archive file that can be opened in the closed-source but powerful Citavi database software.
  • INDIGO Graffiti Terminology Database: this database (DOI: 10.5281/zenodo.8419328) collects graffiti-related terms and their definitions as they appear in the glossaries, dictionaries and various controlled vocabularies consulted within project INDIGO. This dataset currently holds 2134 entries extracted from 48 multi-lingual sources (English, German, French and Italian).

In addition to both databases, two thesauri are freely accessible online. In contrast to the two databases that consolidate scattered graffiti-relevant literature and terminological information into one file, thesauri are semantic tools that can – when agreed upon – form the terminological backbone of a research field.

  • INDIGO Graffiti Thesaurus: this thesaurus (which can be consulted here) is a curated resource centred on contemporary graffiti terminology, with a spatial focus on the Danube Canal in Vienna, Austria. It organises, categorises and connects graffiti-related concepts through equivalence, hierarchical, and associative relationships.  The thesaurus is also embeddable into the Getty AAT, the world’s most popular heritage thesaurus. So far, the concepts lack concept definitions; this process is still ongoing, and definitions for all 179 terms will only be released when they are consistent and exhaustive.
  • GRAPHIS Image Region Thesaurus: this small controlled vocabulary of eight terms (consult them here) defines all the concepts used by INDIGO’s bespoke image segmentation tool GRAPHIS to annotate image regions (see the software section).

Finally, INDIGO also made two large image sets available.

  • INDIGO Follow-Up Photographs: more info follows soon.
  • INDIGO Change Detection Reference Dataset: when developing change detection algorithms, the INDIGO team decided that a reference would be needed to compare the effectiveness of our bespoke approaches. This has materialised in a large reference dataset of 20,742 images that can be used to benchmark image change detection algorithms (DOI: 10.48436/ayj4e-v4864).

scientific publications

So far, INDIGO has published six peer-reviewed journal papers, two edited proceedings volume and fifteen conference papers.

  • Carloni, M., Verhoeven, G. J., Schlegel, J., Wogrin, S., 2023. The challenges of preservation: Digitizing graffiti in the urban landscape, in La memoria digitale: Forme del testo e organizzazione della conoscenza. Atti del XII Convegno Annuale AIUCD (AIUCD 2023), Siena, Italy, 5-7 June 2023. Associazione per l’Informatica Umanistica e la Cultura Digitale, pp. 338-342.  DOI: 10.5281/zenodo.8004645
  • Merrill, S., Verhoeven, G.J., Wild, B., JANER ONE, MANUEL SKIRL, SERT, SNUF, Carloni, M., de la Iglesia, M., Fernandez Merino, F., Radošević, L., Ricci, C., Schlegel, J., Wogrin, S., 2023. ‘Different folks, different strokes’: goINDIGO 2022’s «Creators vs Academics» discussion round, in: document | archive | disseminate graffiti-scapes. Proceedings of the goINDIGO 2022 international graffiti symposium, Vienna, Austria, 11-13 May 2022. Urban Creativity, Lisbon, pp. 25-44. DOI: 10.48619/indigo.v0i0.701
  • Molada-Tebar, A., Verhoeven, G.J., 2023. Towards colour-accurate documentation of anonymous expressions, in: document | archive | disseminate graffiti-scapes. Proceedings of the goINDIGO 2022 international graffiti symposium, Vienna, Austria, 11-13 May 2022. Urban Creativity, Lisbon, pp. 86-130. DOI: 10.48619/indigo.v0i0.704
  • Molada-Tebar, A., Verhoeven, G.J., Hernández-López, D., González-Aguilera, D., 2004 Practical RGB-to-XYZ Color Transformation Matrix Estimation under Different Lighting Conditions for Graffiti Documentation. Sensors 24(6), 1743, DOI:10.3390/s24061743
  • Nocerino, E., Menna, F., Verhoeven, G.J., 2022. Good vibrations? How image stabilisation influences photogrammetry. Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. XLVI-2/W1-2022, pp. 395–400. DOI: 10.5194/isprs-archives-XLVI-2-W1-2022-395-2022
  • Schlegel, J., Carloni, M., Wogrin, S., Verhoeven, G.J., 2022. Making a mark—Towards a graffiti thesaurus, in: document | archive | disseminate graffiti-scapes. Proceedings of the goINDIGO 2022 international graffiti symposium, Vienna, Austria, 11-13 May 2022. Urban Creativity, Lisbon, pp. 203-219. DOI: 10.48619/indigo.v0i0.710
  • Schlegel, J., Wieser, M., Verhoeven, G.J., 2024. Getting Hold of the Urban Chameleon—Towards a Platform for Graffiti Visualisation and Analysis, in: disseminate | analyse | understand graffiti-scapes. Proceedings of the goINDIGO 2023 international graffiti symposium, Vienna, Austria. 14-16 June 2023. Urban Creativity, Lisbon, pp. 48–61. DOI: 10.48619/indigo.v0i0.975
  • Trognitz, M., Carloni, M., Koschiček-Krombholz, B., 2024. The Data Crew—Archive with ARCHE and Enrich with OpenAtlas, in: disseminate | analyse | understand graffiti-scapes. Proceedings of the goINDIGO 2023 international graffiti symposium, Vienna, Austria. 14-16 June 2023. Urban Creativity, Lisbon, pp. 62–71. DOI: 10.48619/indigo.v0i0.976
  • Verhoeven, G.J., Carloni, M., Schlegel, J., Wild, B., Wogrin, S., 2022. Finding listeners for walls that speak, in: document | archive | disseminate graffiti-scapes. Proceedings of the goINDIGO 2022 international graffiti symposium, Vienna, Austria, 11-13 May 2022. Urban Creativity, Lisbon, pp. 6-15. DOI: 10.48619/indigo.v0i0.699
  • Verhoeven, G.J., Schlegel, J., Wild, B., 2024. Each Graffito Deserves Its Polygon—It Is About Time, in: disseminate | analyse | understand graffiti-scapes. Proceedings of the goINDIGO 2023 international graffiti symposium, Vienna, Austria. 14-16 June 2023. Urban Creativity, Lisbon, pp. 163–185. DOI: 10.48619/indigo.v0i0.981
  • Verhoeven, G.J., Schlegel, J., Wild, B., Wogrin, S., Carloni, M. (Eds.), 2022. document | archive | disseminate graffiti-scapes. Proceedings of the goINDIGO 2022 international graffiti symposium. Urban Creativity, Lisbon, 321 pp. ISBN: 979-8394601279
  • Verhoeven, G.J., Schlegel, J., Wild, B., Wogrin, S. (Eds.), 2024. disseminate | analyse | understand graffiti-scapes. Proceedings of the goINDIGO 2023 international graffiti symposium. Urban Creativity, Lisbon, 221 pp. ISBN: 979-8338843420
  • Verhoeven, G.J., Schlegel, J., Wild, B., Wogrin, S., 2024. Dissipating and Unravelling Bits of Graffiti Bytes, in: disseminate | analyse | understand graffiti-scapes. Proceedings of the goINDIGO 2023 international graffiti symposium, Vienna, Austria. 14-16 June 2023. Urban Creativity, Lisbon, pp. 6–11. DOI: 10.48619/indigo.v0i0.971
  • Verhoeven, G.J., Wieser, M., Carloni, M., 2024. GRAPHIS—Visualise, Draw, Annotate, and Save Image Regions in Graffiti Photos, in: disseminate | analyse | understand graffiti-scapes. Proceedings of the goINDIGO 2023 international graffiti symposium, Vienna, Austria. 14-16 June 2023. Urban Creativity, Lisbon, pp. 72–103. DOI: 10.48619/indigo.v0i0.977
  • Verhoeven, G.J., Wild, B., Schlegel, J., Wieser, M., Pfeifer, N., Wogrin, S., Eysn, L., Carloni, M., Koschiček-Krombholz, B., Molada-Tebar, A., Otepka-Schremmer, J., Ressl, C., Trognitz, M., Watzinger, A., 2022. Project INDIGO – document, disseminate & analyse a graffiti-scape. Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. XLVI-2/W1-2022, pp. 513–520. DOI: 10.5194/isprs-archives-XLVI-2-W1-2022-513-2022. This article won the best paper award at the 3D-ARCH 2022 conference.
  • Verhoeven, G.J., Wogrin, S., Schlegel, J., Wieser, M., Wild, B., 2022. Facing a chameleon—How project INDIGO discovers and records new graffiti, in: document | archive | disseminate graffiti-scapes. Proceedings of the goINDIGO 2022 international graffiti symposium, Vienna, Austria, 11-13 May 2022. Urban Creativity, Lisbon, pp. 63-85. DOI: 10.48619/indigo.v0i0.703
  • Wieser, M., Verhoeven, G.J., Wild, B., Pfeifer, N., 2024. Exterior Orientation in a Box: Cost-Effective RTK/IMU-Based Photo Geotagging. Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. XLVIII-2/W8-2024, pp. 463–470, DOI: 10.5194/isprs-archives-XLVIII-2-W8-2024-463-2024
  • Wild, B., Verhoeven, G.J., Muszyński, R., Pfeifer, N., 2024. Detecting change in graffiti using a hybrid framework. The Photogrammetric Record, 39(187), pp. 549-576. DOI: 10.1111/phor.12496
  • Wild, B., Verhoeven, G.J., Pfeifer, N. 2023. Tracking the urban chameleon – Towards a hybrid change detection of graffiti. ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, X-M-1-2023, pp. 285–292. DOI: 10.5194/isprs-annals-X-M-1-2023-285-2023
  • Wild, B., Verhoeven, G.J., Pfeifer, N., Bonadio, E., DEADBEAT HERO, FUNKY, JANER ONE, MANUEL SKIRL, Carloni, M., Ricci, C., Koblitz, C., Niemann, S., Radošević, L., Schlegel, J., Watzinger, A., Wogrin, S., 2022. ‘Imagine being a racist’: goINDIGO 2022’s «Ethics & legality in graffiti (research)» discussion round, in: document | archive | disseminate graffiti-scapes. Proceedings of the goINDIGO 2022 international graffiti symposium, Vienna, Austria, 11-13 May 2022. Urban Creativity, Lisbon, pp. 45-62. DOI: 10.48619/indigo.v0i0.702
  • Wild, B., Verhoeven, G.J., Wieser, M., Ressl, C., Schlegel, J., Wogrin, S., Otepka-Schremmer, J., Pfeifer, N., 2022. AUTOGRAF—Automated Orthorectification of GRAFfiti Photos. Heritage, 5(4), pp. 2987–3009. DOI: 10.3390/heritage5040155
  • Wild, B., Verhoeven, G.J., Wieser, M., Ressl, C., Otepka-Schremmer, J., Pfeifer, N., 2023. Graffiti-Dokumentation: Projekt INDIGO, in: 22. Internationale Geodätische Woche Obergurgl 2023, Obergurgl, Austria. 12-18 February 2023. Wichmann, Berlin, pp. 322–325. DOI: 10.5281/zenodo.7715655
  • Wild, B., Verhoeven, G.J., Wogrin, S., Wieser, M., Otepka-Schremmer, J., Pfeifer, N., 2022. Urban Creativity meets Engineering. Automated Graffiti Mapping along Vienna’s Donaukanal, in: document | archive | disseminate graffiti-scapes. Proceedings of the goINDIGO 2022 international graffiti symposium, Vienna, Austria, 11-13 May 2022. Urban Creativity, Lisbon, pp. 131-145. DOI: 10.48619/indigo.v0i0.705

Right now,  no papers are submitted or worked on.

scientific presentations – talks

Below, all twenty-seven scientific talks on INDIGO-specific topics are listed. If the presentation is available online, it has gotten a DOI number over Zenodo. Some presentations do not feature a DOI, because the content is (almost) identical to previous talks. Some talks at the end of this list took place when INDIGO was already over. Since they are a direct result of project INDIGO, these talks were also included. 

  • 17/09/2021 [Vienna, Austria]
    • Conference: Second Heritage Science Austria Meeting
    • Title: INDIGO: INventory and DIsseminate Graffiti along the dOnaukanal
    • Presenter: Geert Verhoeven
    • Invited: Yes
    • DOI: 10.5281/zenodo.6338834
  • 19/11/2021 [Online, Austria]
    • Meeting: Meeting Ethical Commission TU Wien
    • Title: INDIGO: INventory and DIsseminate Graffiti along the dOnaukanal
    • Presenter: Geert Verhoeven
    • Invited: No
  • 25/11/2021 [Vienna, Austria]
    • Meeting: Internal meeting at the PhotoCircle research group (Geodesy Department TU Wien, Austria)
    • Title: Photogrammetry in context of the graffiti-research project INDIGO
    • Presenter: Benjamin Wild
    • Invited: No
  • 02/03/2022 [Mantova, Italy]
    • Conference: 3D-ARCH’2022 – 3D Virtual Reconstruction and Visualization of Complex Architectures – 9th International Workshop
    • Title: Project INDIGO – document, disseminate & analyse a graffiti-scape
    • Presenter: Benjamin Wild
    • Invited: No
    • DOI: 10.5281/zenodo.6339489
  • 03/03/2022 [Mantova, Italy]
    • Conference: 3D-ARCH’2022 – 3D Virtual Reconstruction and Visualization of Complex Architectures – 9th International Workshop
    • Title: Good vibrations? How image stabilisation influences photogrammetry
    • Presenter: Fabio Menna
    • Invited: No
    • DOI: 10.5281/zenodo.6382756
  • 31/03/2022 [Online, Australia]
    • Workshop: Pointcloud Workshop (Geospatial Research Innovation Development lab at the University of New South Wales)
    • Title: Project INDIGO – document, disseminate & analyse a graffiti-scape
    • Presenter: Benjamin Wild
    • Invited: Yes
  • 11/05/2022 [Vienna, Austria]
    • Symposium: goINDIGO 2022: document | archive | disseminate graffiti-scapes
    • Title: Discovering & recording new graffiti within project INDIGO
    • Presenter: Geert Verhoeven
    • Invited: No
    • DOI: 10.5281/zenodo.6574796
  • 11/05/2022 [Vienna, Austria]
    • Symposium: goINDIGO 2022: document | archive | disseminate graffiti-scapes
    • Title: Achieving colour-accurate data from images: challenges and solutions
    • Presenter: Adolfo-Molada Tebar
    • Invited: No
    • DOI: 10.5281/zenodo.6579429
  • 12/05/2022 [Vienna, Austria]
    • Symposium: goINDIGO 2022: document | archive | disseminate graffiti-scapes
    • Title: Towards a graffiti thesaurus in SKOS
    • Presenter: Jona Schlegel & Massimiliano Carloni
    • Invited: No
    • DOI: 10.5281/zenodo.6578470
  • 12/05/2022 [Vienna, Austria]
    • Symposium: goINDIGO 2022: document | archive | disseminate graffiti-scapes
    • Title: Towards the automatic production of graffiti orthophotos
    • Presenter: Benjamin Wild
    • Invited: No
    • DOI: 10.5281/zenodo.6574990
  • 07/07/2022 [Wrocław, Poland]
    • Meeting: Guest lecture
    • Title: INDIGO – document, disseminate & analyse a graffiti-scape
    • Presenter: Norbert Pfeifer
    • Invited: Yes
  • 13/10/2022 [Vienna, Austria]
    • Workshop: Standortbestimmung Kulturelles Erbe: Herausforderungen und Potenziale
    • Title: Are times a-changing? Contemporary graffiti in cultural heritage
    • Presenter: Massimiliano Carloni
    • Invited: No
    • DOI: 10.5281/zenodo.8415418
  • 10/11/2022 [Vienna, Austria]
    • Meeting: Scientific Advisory Board meeting of the LBI ArchPro
    • Title: Project INDIGO
    • Presenter: Geert Verhoeven
    • Invited: yes
    • DOI: 10.5281/zenodo.8112446
  • 14/06/2023 [Vienna, Austria]
  • 15/06/2023 [Vienna, Austria]
    • Symposium: goINDIGO 2023: disseminate | analyse | understand graffiti-scapes
    • Title: Towards an automated detection of changes in the urban chameleon skin
    • Presenter: Benjamin Wild
    • Invited: No
    • DOI: 10.5281/zenodo.8113135
    • Recording: https://youtu.be/HQnPgFta65M
  • 15/06/2023 [Vienna, Austria]
    • Symposium: goINDIGO 2023: disseminate | analyse | understand graffiti-scapes
    • Title: GRAPHIS—A free tool to save, annotate and visualise regions in graffiti photos
    • Presenter: Geert Verhoeven
    • Invited: No
    • DOI: 10.5281/zenodo.8106293
    • Recording: https://youtu.be/dj3JQfVaxdU
  • 16/06/2023 [Vienna, Austria]
    • Symposium: goINDIGO 2023: disseminate | analyse | understand graffiti-scapes
    • Title: One polygon at a time – trying to manage a graffiti-scape’s spatio-temporality
    • Presenter: Geert Verhoeven
    • Invited: No
    • DOI: 10.5281/zenodo.8105895
    • Recording: https://youtu.be/FB3TK432jAU
  • 27/06/2023 [Florence, Italy]
    • Conference: CIPA 2023: Documenting, Understanding, Preserving Cultural Heritage: Humanities and Digital Technologies for Shaping the Future
    • Title: Tracking the urban chameleon – towards a hybrid change detection of graffiti
    • Presenter: Benjamin Wild
    • Invited: No
    • DOI: 10.5281/zenodo.8124248
  • 07/07/2023 [Lisbon, Portugal]
    • Conference: Urban Creativity Conference 2023: Numbers
    • Title: Project INDIGO – An overview in numbers
    • Presenter: Geert Verhoeven
    • Invited: Yes
    • DOI: 10.5281/zenodo.8124879
  • 29/09/2023 [Hamburg, Germany]
    • Conference: Studying Written Artefacts: Challenges and Perspectives
    • Title: Acquiring, Archiving and Annotating Contemporary Graffiti within project INDIGO
    • Presenter: Jona Schlegel
    • Invited: Yes
  • 08/12/2023 [Karlsruhe, Germany]
    • Workshop: Leaving a Mark: Onsite – On Surface – Online
    • Title: INDIGO and the Graffito: Navigating Definitions and Digital Representations
    • Presenter: Jona Schlegel
    • Invited: Yes
    • DOI: 10.5281/zenodo.10361156
  • 08/12/2023 [Karlsruhe, Germany]
    • Workshop: Leaving a Mark: Onsite – On Surface – Online
    • Title: Engineering meets graffiti: How can photogrammetry digitally safeguard the ephemeral?
    • Presenter: Benjamin Wild
    • Invited: Yes
  • 15/12/2023 [Vienna, Austria]
    • Workshop: Institute day at the Department of Prehistoric and Historical Archaeology, University of Vienna
    • Title: INDIGO – graffiti archaeology along the Donaukanal
    • Presenter: Geert Verhoeven
    • Invited: Yes
  • 19/03/2024 [Bradford, UK]
    • Lecture series: School of Archaeological and Forensic Sciences (SAFS) Guest Lecture series
    • Title: Project INDIGO—Tackling an Urban Chameleon via Digital Graffiti Archaeology
    • Presenter: Geert Verhoeven
    • Invited: Yes
    • DOI: 10.5281/zenodo.10843541
  • 04/04/2024 [Vienna, Austria]
    • Meeting: Research Lunch at the Austrian Centre for Digital Humanities and Cultural Heritage (ACDH-CH) of the Austrian Academy of Sciences (ÖAW)
    • Title: Project INDIGO: Digital Graffiti-scape Archaeology
    • Presenter: Geert Verhoeven
    • Invited: Yes
    • DOI: 10.5281/zenodo.10932126
  • 12/12/2024 [Brescia, Italy]
    • Conference: Low-cost 3D – 8th International ISPRS Workshop
    • Title: Exterior Orientation in a Box: Cost-Effective RTK/IMU-Based Photo Geotagging
    • Presenter: Martin Wieser
    • Invited: No
  • 22/01/2025 [Vienna, Austria]
    • Lecture series: Österreichische Gesellschaft für Vermessung und Geoinformation – Vorträge
    • Title: Geoinformation techniques to monitor the Urban Chameleon
    • Presenter: Geert Verhoeven & Benjamin Wild
    • Invited: Yes
    • Recording: https://youtu.be/IOAcyELsiME

scientific presentations – posters

Four posters on INDIGO-specific topics have been produced since the project’s start:

  • 23/09/2022 [Vienna, Austria]
    • Conference: Third Heritage Science Austria Meeting
    • Title: Acquiring centimetre-accurate camera coordinates in project INDIGO
    • Presenter: Geert Verhoeven
    • Invited: No
    • DOI: 10.5281/zenodo.7109573
  • 23/09/2022 [Vienna, Austria]
    • Conference: Third Heritage Science Austria Meeting
    • Title: How project INDIGO automatically turns graffiti photos into orthophotomaps
    • Presenter: Benjamin Wild
    • Invited: No
    • DOI: 10.5281/zenodo.7109431
  • 17/02/2023 [Obergurgl, Austria]
    • Conference: 22. Internationale Geodätische Woche
    • Title: Graffiti Dokumentation: Projekt INDIGO
    • Presenter: Benjamin Wild
    • Invited: No
    • DOI: 10.5281/zenodo.7638295
  • 25/10/2023 [Vienna, Austria]
    • Conference: Cultural Heritage-Research in the Digital Age
    • Title: (Digitally) preserving cultural heritage: the example of contemporary graffiti in the project INDIGO
    • Presenter: Massimiliano Carloni
    • Invited: Yes

symposia

Because INDIGO has a technical- and more humanistic-oriented aspect, both aspects were from the beginning planned to be covered by two symposia. Although the COronaVIrus Disease 2019 (COVID-19) was still wreaking havoc across the world, the hope was nurtured to physically bring together specific subsections of the (scholarly) graffiti community in Vienna. The initial timing of both symposia accounted for INDIGO’s project schedule to maximise the relevancy of the discussions and insights gained.

  • goINDIGO 2022 had been planned to take place six months into the project and tackle all the technical, logistic, legal, and ethical aspects of documenting, archiving, and disseminating graffiti. The idea of gathering experts and experience so early was to help avoid pitfalls on various more technical topics further down INDIGO’s road. Although the uncertainty created by the COVID-19 pandemic slightly delayed the goINDIGO 2022 symposium and made a hybrid event inevitable, INDIGO managed a small but successful gathering. From the 11th to the 13th of May, a mixed group of sixty participants (graffiti creators, heritage professionals and graffiti academics) from twelve countries met in Vienna or online to learn from each other and build proverbial bridges. Throughout two and a half days, two keynote lectures and eighteen presentations touched upon many facets of documenting, archiving and disseminating graffiti records (see also the book of abstracts). The goINDIGO 2022 proceedings are now freely available via the Urban Creativity website.
  • A second symposium – goINDIGO 2023 – took place at the end of the project from the 14th to the 16th of June 2023 (see also the symposium website). This gathering covered the various forms of graffiti dissemination and focused on techniques to analyse and understand graffiti’s socio-political and cultural impact. Because this symposium could build on the success of goINDIGO 2022, all relevant metrics slightly increased: 62 participants from 13 countries and three keynote lectures. Besides the three keynotes, goINDIGO 2023 counted 18 presentations. Apart from one regular talk and one keynote, all presentations can be rewatched via the goINDIGO 2023 YouTube playlist. The dedicated “graffiti dissemination” discussion session between academics and graffiti creators was not recorded to respect the anonymity of the latter. Currently (i.e. September 2023), the goINDIGO 2023 organising team is finalising the proceedings. This volume will be slightly smaller (around 13 contributions) but also freely available via the Urban Creativity website.

theses | exercises

Several students used INDIGO material for a variety of academic purposes:

  • Bachelor thesis
    • Study: Bachelor Programme Geodesy and Geoinformation (033 221) – TU Wien
    • Student: Martin Rachbauer
    • Period: 02-2022 to 12-2022
    • Title: Analyse verschiedener Methoden zur Graffiti Segmentierung
    • Supervisor: Benjamin Wild
  • Master thesis
    • Study: Master programme Geodesy and Geoinformation (066 421) – TU Wien
    • Student: Oskar Baumann
    • Period: 12-2022 to 09-2023
    • Title: Mapping Street Art: Developing Cartographic Visualisation of Graffiti
    • Supervisor: Benjamin Wild
    • URL: https://oacbaumann.github.io/graffiti_map
  • Master thesis
  • Exercises
    • Study: Master programme Geodesy and Geoinformation (066 421) – TU Wien
    • Course: Location Based Services
    • Students: Benjamin Stifter & Olivia Panzenböck, Lena Wohlgenannt
    • Period: 03-2023 to 07-2023
    • URL: https://lbs-project-group1.netlify.app/index.html
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