Institut für Raumbezogene Informations- und Messtechnik
Hochschule Mainz - University of Applied Sciences

News

Am 10. und 11. Februar luden die AG Computeranwendungen und Quantitative Methoden in der Archäologie e.V. (CAA) und das Interdisziplinäre Zentrum für...

Vom 16.01.-18.01.2017 fand das jährliche Plenartreffen des DFG Schwerpunktprogrammes 1630 Häfen im Schloss Gottorf, Schleswig statt. Dies nahmen Prof....

Projects

In der Orthopädietechnik werden Hilfsmittel immer noch überwiegend mit klassischen Guss- und Abformtechniken hergestellt. Die sich bietenden Möglichkeiten über CNC-Fräsen oder 3D-D...
In diesem Projekt werden historische Nassholzbohlen und hölzerne Befestigungsmaterialien des Karlsgraben mithilfe von hochpräziser und flächenhaft arbeitender 3D-Messtechnik geomet...

Publications

SIVT - Processing, Viewing, and Analysis of 3D Scans of the Porthole Slab and Slab B2 of ZĂĽschen I

2016

BibTex

CAA2015 - Keep the Revolution Going. Proceedings of the 43rd Annual Conference on Computer Applications and Quantitative Methods in Archaeology.

The Late Antique and Byzantine Workshop- and Milling-complex in Terrace House 2 of Ephesos (Turkey) - Relative Chronology and Wheelrace Construction

2016

BibTex

Actes du colloque international, Lons-le-Saunier du 2 au 5 novembre 2011

The workshop and milling complex in Terrace House 2 comprises seven mills and one stone-sawing machine. Each were powered by a waterwheel. Based on the different features, it is possible to identify three building phases. The first comprised at least two mills powered by two independent waterwheels. The second had at least one mill. In the third phase five waterwheels drove four mills and one stone-sawing machine. In addition, it is possible to distinguish between two different types of waterwheel constructions.


Digital 3D Reconstructed Models – Structuring Visualisation Project Workflows

2016

BibTex

igital Heritage. Progress in Cultural Heritage: Documentation, Preservation, and Protection 6th International Conference, EuroMed 2016, Nicosia, Cyprus, October 31 – November 5, 2016, Proceedings, Part I.

Cultural Heritage (CH) visualisations have to be understood as a combination of research sources, the contemporary historical and cultural context (Zeitgeist), project background and work process. All available information is collected, consolidated, filtered and assembled into a coherent picture. In case of digital 3D reconstructed models, the result is a digital data set that can be processed for different application fields. They are understood as a result of a complex creative process and as a synthesis of a CH research project, its CH context, the available research source material, and the modeling process itself. For all visualisation types in CH different conditions, factors, and basic rules apply to achieve a high quality result. Two examples are presented illustrating the structured view on visualisation projects as such. This paper seeks to differentiate the various research sources being the basis for digital 3D reconstructed models and defines work phases allowing a quality assessment. Furthermore, the potentials of including this structured view into the ontology COSCHKR currently under development is discussed. In combindation with traditional guidelines COSCHKR platform could open up new and flexible approaches.


Ein Industrieviertel im Zentrum von Ephesos - die WassermĂĽhlen im Hanghaus 2

2016

BibTex

BYZAZ

Die luxuriös ausgestatteten Wohneinheiten des am Nordhang des Bülbüldağ gelegenen Hanghauses 2 wurden im 3. Viertel des 3. Jhs. durch eine schwere Erdbebenserie zerstört. Statt die Wohnungen wiederaufzubauen, wurden bereits kurze Zeit nach der verheerenden Katastrophe mit Wasserkraft angetriebene Mühlen eingerichtet. Im Befund sind insgesamt acht Wasserradgerinne mit jeweils einer zugehörigen Mühlstube bzw. Werkstatt erhalten. Sie lassen sich drei Bauphasen zuordnen, die in das 4., 5./6. und Ende des 6./Anfang des 7. Jahrhunderts datieren. In der am besten erhaltenen Phase sind insgesamt fünf Räder hintereinandergeschaltet. Neben einer Steinsäge wurden vier Mahlgänge zur Mehlproduktion angetrieben. Eine große Personenanzahl konnte so mit dem wichtigsten Grundnahrungsmittel versorgt werden. Die Mühlenanlage wird in den städtischen Kontext von Ephesos gesetzt und mit anderen Mühlenanlagen verglichen.


Technical study of Germolles’ wall paintings: the input of imaging technique

2016

BibTex

Virtual Archaeology Review

The Château de Germolles is one of the rare palaces in France dating from the 14 th century. The noble floor is decorated with wall paintings that are a unique example of courtly love spirit that infused the princely courts of the time. After being concealed sometime in the 19 th century, the paintings were rediscovered and uncovered in the middle of the 20 th century and partly restored at the end of the 1990s. No scientific documentation accompanied these interventions and important questions, such as the level of authenticity of the mural decorations and the original painting technique(s) used in the medieval times remained unanswered. The combined scientific and financial supports of COSCH COST Action and DRAC-Burgundy enabled to study Germolles' wall paintings using some of the most innovative imaging and analytical techniques and to address some of the questions raised. The study provided significant information on the material used in the medieval times and on the conservation condition of the paintings. The data collected is vast and varied and exposed the owners of the property to the challenges of data management.


Development of a platform recommending 3D and spectral digitisation strategies.

2016

BibTex

Virtual Archaeology Review

Spatial and spectral recording of cultural heritage objects is a complex task including data acquisition, processing and analysis involving different technical disciplines. Additionally, the development of a suitable digitisation strategy satisfying the expectations of the humanities experts needs an interdisciplinary dialogue often suffering from misunderstanding and knowledge gaps on both the technical and humanities sides. Through a concerted discussion, experts from the cultural heritage and technical domains currently develop a so-called COSCH KR (Colour and Space in Cultural Heritage Knowledge Representation) platform that will give recommendations for spatial and spectral recording strategies adapted to the needs of the cultural heritage application. The platform will make use of an ontology through which the relevant parameters of the different domains involved in the recording, processing, analysis, and dissemination of cultural heritage objects are hierarchically structured and related through rule-based dependencies. Background and basis for this ontology is the fact that a deterministic relation exists between (1) the requirements of a cultural heritage application on spatial, spectral, as well as visual digital information of a cultural heritage object which itself has concrete physical characteristics and (2) the technical possibilities of the spectral and spatial recording devices. Through a case study which deals with the deformation analysis of wooden samples of cultural heritage artefacts, this deterministic relationship is illustrated explaining the overall structure and development of the ontology. The aim of the COSCH KR platform is to support cultural heritage experts finding the best suitable recording strategy for their often unique physical cultural heritage object and research question. The platform will support them and will make them aware of the relevant parameters and limitations of the recording strategy with respect to the characteristics of the cultural heritage object, external influences, application, recording devices, and data.


UAV photogrammetry and 3D analyses of CH sites. The millstone quarry district of Mayen (DE) as a case study

2016

BibTex

W. Börner, S. Uhlirz (eds), Proceedings of the 20th International Conference on Cultural Heritage and New Technologies 2015 (CHNT 20, 2015)

Application and analysis capabilities of 3D data sets generated through UAV photogrammetry are presented on the basis of an exemplary millstone quarry of the so-called Mayen quarry district (Germany). In general, millstone quarries are technical cultural heritage sites which give evidence for economic interpretations as they are of interest for the reconstruction of ancient procurement patterns. Particularly those quarries which had a high economic impact cover large areas with often arduous accessibility. Therefore, photogrammetric recording using a UAV is the best approach for fast and inexpensive high-quality documentation. The images are used to create a 3D data set and orthophoto. For analysis and interpretation the Spatial Image analysis and Visualisation Tool (SIVT) of i3mainz is used allowing a variety of interactive visualization functionalities. The 3D data are transformed into 2.5D data enabling segmentation of spatial information and volume calculations. Both functionalities support the cultural heritage expert's research: On the one hand the interactive segmentation allows producing a map of the quarry displaying only those parts associated with the extraction. On the other hand the output of the quarry including debris and millstone blanks can be calculated easily. All in all, the entire workflow beginning with data capture using a UAV followed by data processing, (2.5D / 3D) data analyses and visualisation of the results is presented.


3D Survey and Documentation of an Early Iron Age Burial from Otzing, near Deggendorf in Lower Bavaria

2016

BibTex

COSCH e-Bulletin 3-2016

Student Projects

Ender Kurt,
Cedric Mayer

LINK

Das Vorhaben hatte zum Ziel, ein wirtschaftliches Verfahren zur Erstellung von Gebäudeplänen zu untersuchen. So wurde durch die Gruppe eine 3D-Erfassung und Auswertung mittels handgeführtem Low-Cost Scannersystem in Form der
Sensorleiste Kinect durchgeführt. Die abgeleiteten Pläne können neben der Indoor-Navigation u.a. auch zu Zw...


Michael MĂĽller (B. Sc.),
Fabian Schmenger (B. Sc.),
Daniel Schröder (B. Sc.),
Kira Zschiesche (B. Eng.)

LINK

Im dritten Semester des Masterstudiengangs Geoinformatik und Vermessung ist von den Studierenden ein Projekt als Gruppenarbeit im Rahmen von ca. 540 Arbeitsstunden pro Studierendem durchzuführen. Es besteht die Möglichkeit für die Studierenden während einer solchen Projektphase neuartige und alternative Auswerteverfahren für bestehende...


Studierende des Masterstudiengangs Geoinformatik und Vermessung

LINK

Im Rahmen des Mastermoduls "Interdisziplinäre Anwendungen raumbezogener Informationstechnik" in den Studiengängen "Geoinformatik und Vermessung" (HS Mainz) und "Archäologie" (JGU Mainz) findet am 4. Dezember 2014 ein Workshop statt. Das mit dem "Open Humanities Award" der EU-Initiative DM2E (Digitised Manuscripts to Europeana) ausgezei...


Theses

Genauigkeitsanalyse einer automatischen Georeferenzierung zur Planung von UAV-BildflĂĽgen
Schumann, David 2015/2016 - HTML

Schwingungsverhalten von ebenen Punktfeldplatten im Kontext der Kamerakalibrierung
Veller, Jonas 2015 - HTML

Untersuchungen am Galeriengrab in Fritzlar-Lohne mittels Streifenlichtprojektion und Vergleich zu einer Erstmessung von 2005
Bies, Markus 2015 - HTML