Publikationen

Olaf Clausen, Y Chen, Arnulph Fuhrmann and Ricardo Marroquim
MANER Conference – Material Appearance Network for Education and Research (2024), Workshop on Material Appearance Modeling

Martin Mišiak, Tom Müller, Arnulph Fuhrmann and Marc Erich Latoschik
Virtuelle und Erweiterte Realität – 20. Workshop der GI-Fachgruppe VR/AR, 2023, Köln, Germany

Martin Mišiak, Arnulph Fuhrmann, Marc Erich Latoschik
ACM Symposium on Applied Perception 2023 (SAP ’23)

Olaf Clausen, Yang Chen, Arnulph Fuhrmann and Ricardo Marroquim
Computer Graphics Forum, 42: 245-260.

Nigel Frangenberg, Kristoffer Waldow and Arnulph Fuhrmann
Proceedings of 28th IEEE Virtual Reality Conference (VR ’21), Lisbon, Portugal

Ursula Derichs, Martin Mišiak and Arnulph Fuhrmann
Virtuelle und Erweiterte Realität – 17. Workshop der GI-Fachgruppe VR/AR, 2020, Trier, Germany

Sven Hinze, Martin Mišiak and Arnulph Fuhrmann
Virtuelle und Erweiterte Realität – 17. Workshop der GI-Fachgruppe VR/AR, 2020, Trier, Germany

In this paper, a remote rendering system for an AR app based on Unity is presented. The system was implemented for an edge server, which is located within the network of the mobile network operator.

🏆Best Paper Award

We propose an easy to integrate Automatic Speech Recognition and textual visualization extension for an avatar-based MR remote collaboration system that visualizes speech via spatial floating speech bubbles. In a small pilot study, we achieved word accuracy of our extension of 97% by measuring the widely used word error rate.

This paper investigates the effects of normal mapping on the perception of geometric depth between stereoscopic and non-stereoscopic views.

We investigate the influence of four different audio representations on visually induced self-motion (vection). Our study followed the hypothesis, that the feeling of visually induced vection can be increased by audio sources while lowering negative feelings such as visually induced motion sickness.

🏆Best Paper Award

The simulation of light-matter interaction is a major challenge in computer graphics. Particularly challenging is the modelling of light-matter interaction of rough surfaces, which contain several different scales of roughness where many different scattering phenomena take place. There are still appearance critical phenomena that are weakly approximated or even not included at all by current BRDF models. One of these phenomena is the reddening effect, which describes a tilting of the reflectance spectra towards long wavelengths especially in the specular reflection. The observation that the reddening effect takes place on rough surfaces is new and the characteristics and source of the reddening effect have not been thoroughly researched and explained. Furthermore, it was not even clear whether the reddening really exists or the observed effect resulted from measurement errors. In this work we give a short introduction to the reddening effect and show that it is indeed a property of the material reflectance function, and does not originate from measurement errors or optical aberrations.

Um die Attraktivität des Antizipations- und Reaktionstrainings für jugendliche Torwarte zu erhöhen war es das Ziel eine sportartspezifische Umgebung in virtueller Realität (VR) zu entwickeln.

In Augmented Reality, interaction with the environment can be achieved with a number of different approaches. In current systems, the most common are hand and gesture inputs. However experimental applications also integrated smartphones as intuitive interaction devices and demonstrated great potential for different tasks. One particular task is constrained object manipulation, for which we conducted a user study. In it we compared standard gesture-based approaches with a touch-based interaction via smartphone. We found that a touch-based interface is significantly more efficient, although gestures are being subjectively more accepted. From these results we draw conclusions on how smartphones can be used to realize modern interfaces in AR.

The ability to localize a device or user precisely within a known space, would allow many use cases on the context of location-based augmented reality. We propose a localization service based on sparse visual information using ARCore, a state-of-the-art augmented reality platform for mobile devices.

In this work, we acquired a set of precisely and spectrally resolved ground truth data. It consists of the precise description of a new developed reference scene including isotropic BRDFs of 24 color patches, as well as the reference measurements of all patches under 13 different angles inside the reference scene.

For locomotion in virtual environments (VE) the method of redirected walking (RDW) enables users to explore large virtual areas within a restricted physical space by (almost) natural walking. The trick behind this method is to manipulate the virtual camera in an user-undetectable manner that leads to a change of his movements. If the virtual camera is manipulated too strong then the user recognizes this manipulation and reacts accordingly. We studied the effect of human perception of RDW under the influence of the level of realism in rendering the virtual scene.

We present an approach for exploring OSGi-based software systems in virtual reality. We employ an island metaphor, which represents every module as a distinct island. The resulting island system is displayed in the confines of a virtual table, where users can explore the software visualization on multiple levels of granularity by performing intuitive navigational tasks. Our approach allows users to get a first overview about the complexity of an OSGi-based software system by interactively exploring its modules as well as the dependencies between them.

We present a new, physically plausible, real-time approach to compute directional occlusion for dynamic objects, lit with image based
lighting.

In this paper, we present SIAM-C, an avatar-mediated communication platform to study socially immersive interaction in virtual environments.

This paper presents a system for a shared virtual experience which was developed within a student project. The main idea is to have two or more persons at different locations, who can interact with each other in the same virtual environment. In order to realize this idea every person is motion-captured and wears a head-mounted display (HMD). The virtual environment is rendered with the Unity game engine and the tracked positions are updated via the internet. The virtual environment developed in this project is highly immersive and users felt a strong sense of presence.

We give an ontology for garment patterns that can be incorporated into the simulation of virtual clothing. On the basis of this ontology and extensions to garments we can specify and manipulate the process of virtual dressing on a higher semantic level.

Collision detection is an enabling technology for many virtual environments, games, and virtual prototyping applications containing some kind of physically-based simulation (such as rigid bodies, cloth, surgery, etc.). This tutorial will give an overview of the different classes of algorithms, and then provide attendees with in-depth knowledge of some of the important algorithms within each class.

In this paper we address the problem of rapid distance computation between rigid objects and highly deformable objects, which is important in the context of physically based modeling of e.g hair or clothing.

We describe a system for interactive animation of cloth, which can be used in e-commerce applications, games or even in virtual prototyping systems.

🏆 Computers & Graphics best paper award (2003)