Graduation Work

2019

Pointing Modes and Frames of Reference for Remotely Supporting an Augmented Reality User in a Collaborative (Virtual) Environment

 

This research project was conducted as part of our project “ARBay” and was aimed at re-evaluating interaction mechanisms already known from previous research about remotely supported expert-worker scenarios, this time focusing on the context of remote consultations. A specially developed prototype was used to test different tools enabling a consultant using a PC to point at the environment of a remotely located customer wearing augmented reality glasses. Furthermore, different perspectives for placing virtual furniture in the environment of the customers were evaluated. The video shown here showcases one of the pointing methods and perspectives for placement, each.

2018

Displaying Context-Dependent Information in an AR Environment Exemplified by Virtual User Manuals and Presentations

 

This bachelor thesis is aimed at answering the question of how augmented reality-applications can expand or replace classical manuals and presentations. For this, a system was developed for the Microsoft HoloLens, which is capable of automatically recognizing 2D images/texts and 3D objects within the surroundings, is able to highlight them and to display additional content, such as descriptions or 3D models, next to them.

System zur Nachverfolgung der Haltbarkeitsdaten von Lebensmitteln und zur Vermeidung von Lebensmittelverschwendung

 

This bachelor thesis is about the conceptual design and prototyping of an Android App which supports users by tracking best before dates of groceries to minimize waste. For this purpose, different functionalities like barcode scanning of receipts and recipe suggestion to use up groceries were implemented.

Authentifizierungsverfahren und Zugriffsverwaltung von virtuellen Objekten für Augmented Reality

 

This master thesis is about authentication and authorization mechanisms in Augmented Reality. As part of the thesis two different methods of authentication were developed and tested for the Microsoft HoloLens:

Using the Circle-PIN-Method the user enters their PIN by moving their head and selecting individual digits of a circle in a specific order.

Using the Picture-Points-Method the user has to select predefined points in a picture to authenticate herself.

Furthermore, an authorization system was incorporated in the project, which manages visibility of objects and grants read and write accesses on a user basis. During development, the main focus was placed on conceptualizing a graphical user interface suitable for the Microsoft HoloLens.

Darstellungsformen für technische Anleitungen in Augmented Reality

 

In this thesis, an Augmented-Reality application for the Microsoft HoloLens was developed which enables users to create and use virtual manuals for technical products. As an example, a manual for a XY-Plotter was created.

2017

Augmented Reality Lernszenarien im Pflegebereich

 

In this master's thesis, topic: Entwurf und Entwicklung von realitätsnahen Lernszenarien mittels Augmented Reality, the student Timo Kunzendorff developed an application for the Microsoft HoloLens to support learners in the field of nursing care. One aspect to accomplish this was the usage of marker detection to show detailed medical procedures in realistic contexts. The developed prototype is designed to add further scenarios in a simple and fast way.

Nutzung von 3D Tracking in Augmented Reality

 

The bachelor thesis of Timo Giese has the topic "Nutzung von 3D Tracking in Augmented Reality am Beispiel einer 3D Spur für Videotutorials". In his thesis he  explores the possibility to enrich videos (e.g. how-to videos) with an additional 3D-Track on a Microsoft HoloLens to show objects of the video in real-time on the Microsoft HoloLens in order to let the viewer gain a better understanding of the objects discussed in the video. The Microsoft HoloLens shows a virtual representation of the object shown in the video in real time, and the object is in sync with the motions of the object in the video. So when the object is turned over in the video to explain and show a certain aspect of the object, the virtual object on the Microsoft HoloLens is turned over as well.

Augmented Reality Inhalte in sichtbaren Rahmen

 

In this bachelor's thesis, topic: Darstellung von AR-Inhalten in sichtbaren Rahmen, the student Arno Carstens analzyed how the Microsoft HoloLens can detect rectangles in rooms. The detection algorithm was created by the student. Using the results of this thesis, the application can be used to detect various items in the real world based on having frames to annotate them.

Augmented Reality kooperatives Zeichentool

 

The following work has been conducted within a bachelor's thesis by Niklas Osmers, topic: Entwicklung eines AR-basierten kooperativen Zeichentools zum Zeichnen auf Momentaufnahmen der Umgebung. The application was written for Microsoft HoloLens and enables users to (collaboratively) paint in an augmented space and to share their drawings. Using this applications users can make annotations or highlightings to interact with others. The application was tested within a user study in which pairs of participants were tasked to explain the central perspective with vanishing points to each other, using the application to draw highlights as augmentations of the real world.

 

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