Cooperative object manipulation in collaborative virtual environments

Abstract

Cooperative manipulation refers to the simultaneous manipulation of a virtual object by multiple users in an immersive virtual environment (VE). In this work, we present techniques for cooperative manipulation based on existing single-user techniques. We discuss methods of combining simultaneous user actions, based on the separation of degrees of freedom between two users, and the awareness tools used to provide the necessary knowledge of the partner activities during the cooperative interaction process. We also present a framework for supporting the development of cooperative manipulation techniques, which are based on rules for combining single user interaction techniques. Finally, we report an evaluation of cooperative manipulation scenarios, the results indicating that, in certain situations, cooperative manipulation is more efficient and usable than singleuser manipulation.

WORKFLOW MODEL FOR COLLABORATIVE 3D INTERACTION - Application to Co-located Manipulation

“…In the literature there are two approaches to describe a collaborative 3D interaction [Pinho et al, 2008]. The first allows a simultaneous action on an object by separating data (e.g.…”

Using Petri Nets to specify collaborative three dimensional interaction

“…The work of Pinho et al [5] presents the concept of collaborative metaphor for simultaneous interaction in VEs. This metaphor is composed by a set of rules that defines how to combine each step of the interaction process, allowing that interaction techniques normally used in individual interaction be combined to compose a collaborative technique.…”

“…This paper describes a methodology able to model and to implement software modules that represent the collaborative interaction process phases. Our methodology integrates three modeling approaches: PN formalism [4], a collaborative manipulation model [5] based on the combination of Bowman's single user interaction techniques taxonomy [2], and object oriented programming concepts. The combination of these elements allows for the description of interaction tasks, in which the sequence of the interaction processes is controlled by PNs, and whose codes are generated automatically.…”

User Enjoyment and Performance in Collaborative and Cooperative Games in Shared 3d Virtual Environments

“…The major part of research in this area focuses on the implementation of collaborative and cooperative interaction techniques , such as shared object manipulation. For example, Pinho et al (Pinho et al, 2008) present a framework that supports development of cooperative manipulation techniques. Another cooperative manipulation technique called "SkeweR", that allows two users to move the same virtual object simultaneously in a VE, is presented in (Duval et al, 2006).…”