Motor functions in the VLNET Body-Centered Networked Virtual Environment

Pandžić, Igor S.; Çapın, Tolga; Thalmann, Nadia Magnenat; Thalmann, Daniel

doi:10.1007/978-3-7091-7488-3_10

Cited by 5 publications

(4 citation statements)

References 16 publications

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“…In VLNET system, the core of the system revolves around making realistic humanoid avatars, where the avatar has an underlying skeleton structure that defines what movement is possible [191]. Attached to the skeleton, is a set of meta-balls to emulate muscles and skin [260], thus allowing for a deformable shaped body that is wrapped with skin texture.…”

Section: Appearancementioning

confidence: 99%

Analysis Domain Model for Shared Virtual Environments

Oliveira¹,

Jordan²,

Pereira³

et al. 2009

IJVR

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The field of shared virtual environments, which also encompasses online games and social 3D environments, has a system landscape consisting of multiple solutions that share great functional overlap. However, there is little system interoperability between the different solutions. A shared virtual environment has an associated problem domain that is highly complex raising difficult challenges to the development process, starting with the architectural design of the underlying system. This paper has two main contributions. The first contribution is a broad domain analysis of shared virtual environments, which enables developers to have a better understanding of the whole rather than the part(s). The second contribution is a reference domain model for discussing and describing solutions - the Analysis Domain Model.

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Section: Appearancementioning

confidence: 99%

Analysis Domain Model for Shared Virtual Environments

Oliveira¹,

Jordan²,

Pereira³

et al. 2009

IJVR

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“…This engine provides the interface for changing the body posture. A standard Body Posture Driver is provided, that connects also to the navigation interface to get the navigation information, then uses the Walking Motor and the Arm Motor (Boulic et al, 1990;Pandzic et al, 1996) to generate the natural body movement based on the navigation. Another possibility is to replace this Body Posture Driver by a simpler one that is directly coupled to a set of Flock Of Birds sensors on the users body, providing direct posture control.…”

Section: Legendmentioning

confidence: 99%

Virtual Life Network: A Body-Centered Networked Virtual Environment

Pandžić

Thalmann

Çapın

et al. 1997

Presence: Teleoperators & Virtual Environments

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In order to feel the sense of presence in a virtual environment, it is important for the participants to become a part of this environment and interact with it through natural behaviors. This interaction is even more important in networked collaborative virtual environments, in which the participants need to see and interact with each other. We present the Virtual Life Network (VLNET), a joint research effort in the field of networked collaborative virtual environments at MIRALab of the University of Geneva and the Computer Graphics Laboratory of the Swiss Federal Institute of Technology, Lausanne. In VLNET each participant is represented by a virtual human actor with realistic appearance and movements similar to the actual body. Interacting with the environment through his virtual body, the participant is perceived by himself and others in a natural way. Since it is generally not possible to track all degrees of freedom of the human body in order to reproduce realistic body motion, we introduce the motor functions that generate natural motion for standard tasks such as walking and arm motion; they are based on limited tracked information (hand and head positions). By using the same virtual human representation, but with the addition of high-level control, autonomous virtual actors can be introduced into the environment to perform some useful tasks or simply to make the environment more appealing. To further enhance the realistic feel of the virtual environment and to simplify object manipulation we provide the facility of defining object behaviors by attaching motor functions to the objects.

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“…Ohya et al 5 report the use of human representations with animated bodies and faces in a virtual teleconferencing application. In the approach we adopted when developing the Virtual Life Network (VLNET) system [6][7][8][9] , more sophisticated virtual humans are simulated, including full anatomically based body articulation, skin deformations and facial animation ( Figure 1). Managing multiple instances of such complex representations and the involved data flow in the context of a Networked Collaborative Virtual Environment, while maintaining versatile input and interaction options, requires careful consideration of the software architecture to use.…”

Section: Introductionmentioning

confidence: 99%

A Flexible Architecture for Virtual Humans in Networked Collaborative Virtual Environments

Pandžić

Lee

Thalmann

et al. 1997

Computer Graphics Forum

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Complex virtual human representation provides more natural interaction and communication among participants in networked virtual environments, hence it is expected to increase the sense of being together within the same virtual world. We present a flexible framework for the integration of virtual humans in networked collaborative virtual environments. A modular architecture allows flexible representation and control of the virtual humans, whether they are controlled by a physical user using all sorts of tracking and other devices, or by an intelligent control program turning them into autonomous actors. The modularity of the system allows for fairly easy extensions and integration with new techniques making it interesting also as a testbed for various domains from “classic” VR to psychological experiments. We present results in terms of functionalities, example applications and measurements of performance and network traffic with an increasing number of participants in the simulation.

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Motor functions in the VLNET Body-Centered Networked Virtual Environment

Cited by 5 publications

References 16 publications

Analysis Domain Model for Shared Virtual Environments

Analysis Domain Model for Shared Virtual Environments

Virtual Life Network: A Body-Centered Networked Virtual Environment

A Flexible Architecture for Virtual Humans in Networked Collaborative Virtual Environments

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