The Bent Pick Ray: An Extended Pointing Technique for Multi-User Interaction

Riege, Kai; Wesche, G.

doi:10.1109/tridui.2006.1618272

Cited by 8 publications

(6 citation statements)

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“…The Bent Pick Ray [11] technique enables several users to simultaneously manipulate a virtual object using virtual rays. This technique merges actions of all users by interpolating translations and rotations provided by the virtual rays.…”

Section: Managing Concurrent Access To the Same Dofmentioning

confidence: 99%

Evaluation of remote collaborative manipulation for scientific data analysis

Fleury

Duval

Gouranton

et al. 2012

Proceedings of the 18th ACM Symposium on Virtual Reality Software and Technology

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In the context of scientific data analysis, we propose to compare a remote collaborative manipulation technique with a single user manipulation technique. The manipulation task consists in positioning a clipping plane in order to perform cross-sections of scientific data that show several points of interest located inside these data. For the remote collaborative manipulation, we have chosen to use the 3-hand manipulation technique proposed by Aguerreche et al. [1], which is very suitable with a remote manipulation of a plane. We ran two experiments to compare the two manipulation techniques with some participants located in two different countries. These experiments has shown that the remote collaborative manipulation technique was significantly more efficient than the single user manipulation when the 3 points of interest were far apart inside the scientific data and, consequently, when the manipulation task was more difficult and required more precision. When the 3 points of interest were close together, there was not significant difference between the two manipulation techniques.

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Section: Managing Concurrent Access To the Same Dofmentioning

confidence: 99%

Evaluation of remote collaborative manipulation for scientific data analysis

Fleury

Duval

Gouranton

et al. 2012

Proceedings of the 18th ACM Symposium on Virtual Reality Software and Technology

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“…Some approaches have been proposed for cooperative object manipulation but few interaction techniques take into account the awareness aspect. The collaborative pointing technique for colocated multi-user interaction [26] allows users to pick up an object simultaneously using pick rays. By bending these pick rays which are normally straight, users can be aware of the change made by their actions on the object and also on the control metaphor (i.e.…”

Section: Awareness Of Coordinating Actionsmentioning

confidence: 99%

A survey of communication and awareness in collaborative virtual environments

Nguyen

Duval

2014

2014 International Workshop on Collaborative Virtual Environments (3DCVE)

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In the domain of Collaborative Virtual Environments (CVEs), many virtual worlds, frameworks and techniques are built based on a specific and direct purpose. There is not a general and still good and efficient enough solution for all the collaborative systems. Depending on the purpose of the collaborative work, the techniques of interaction and of manipulation change from one application to another. Despite this difference between interaction techniques, they always benefit greatly from awareness features that help in explicating implicit knowledge related to one's own and others' working activities as well as to virtual workspace. In addition, people in CVEs also use communication channels to negotiate shared understandings of task goals, of task decomposition and of task progress. Therefore, awareness and communication are usually considered as "instruments" to complete collaborative tasks in the environment. However, few research work have been devoted to improving the awareness and the communication channels in CVEs for a better collaboration between users. In this paper, we will study the importance of awareness and communication in collaborative virtual environments. We will investigate different kinds of awareness which need to be carefully designed. We will also discuss different communication means and how to cope with this diversity, so we can benefit from the availability of different peripheral devices and can find an effective communication means to work together. Finally, we will make some propositions to overcome these actual limitations of CVEs.achieved, the performing step takes place while the communication and the awareness steps still go on.In the collaborative working process, the two important steps including coordination and performing, will highly benefit from awareness features that help to represent implicit knowledge related to one's own or others' working activities. In addition, people in CVEs also use communication channels to negotiate shared understandings of task goal, of task decomposition and of task progress. Therefore, awareness and communication are usually considered as "instruments" to complete collaborative tasks in an environment.In this paper, we will study the importance of awareness and communication in CVEs, and will investigate different kinds of awareness which need to be carefully designed in collaborative systems. Furthermore, we will discuss different communication means and how to cope with this diversity, so we can benefit from the availability of different peripheral devices and can find an effective communication means to work together.The remainder of this paper is structured as follows. The next section describes in more detail several kinds of awareness, followed by a small discussion on how to design a CVE for improving awareness. Different means of communication are briefly presented in the third section. The paper concludes with a discussion on the actual limitations of existing awareness and communication work and some suggestions of different aspects t...

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“…Besides the development of display technology, various interaction techniques have also been proposed to make co-located collaboration in multi-user projectionbased systems easier and more efficient, such as the bent pick ray (Riege et al, 2006) and the see-through techniques (Argelaguet et al, 2010). However, these interaction techniques focus solely on situations where users are side-by-side.…”

Section: Related Workmentioning

confidence: 99%

Perceptual Conflicts in a Multi-Stereoscopic Immersive Virtual Environment: Case Study on Face-to-Face Interaction through an Avatar

Chen

Clavel

Férey

et al. 2014

Presence: Teleoperators and Virtual Environments

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With multi-stereoscopy technology, novel projection-based immersive systems now can support multiple users by providing each one with an independent stereoscopic view of the virtual scene. When users work face-to-face, they may have an incorrect view if objects are located between them. In this case, avatars can be introduced to enable face-to-face interaction in the virtual world, whereas they are side-by-side in the real device. As a consequence, such multi-user systems provide the users with a new kind of perceptual immersion and related cognitive experiences, because users must handle both information from the real world (i.e., other users' bodies) and those from the virtual scene (i.e., other users' avatars) at the same time. In this study, we experimentally created special interaction situations to examine the perceptual conflicts generated by the dual-presence of the real and virtual visual and audio stimuli. In a two-user scenario, participants performed an object-picking task according to three types of instructions (verbal, gestural, or multimodal instructions) given by an experimenter. This co-located experimenter was also virtually present by an avatar in the virtual world to enable face-to-face interactions with the participants. Our goal was to observe to what extent the perceptual conflicts induced by the dual-presence of the experimenter can be integrated without significantly altering the performance of the participants. For that, we studied the influence of such perceptual conflicts on participants' choice of collaborator (whether they interacted with the avatar or the real experimenter) and on their task efficiency. As the results showed, first users had an a priori choice of collaborator (avatar or real person) and this choice did not change under different experimental conditions. Second, perceptual conflicts had an impact on users' performance in terms of task completion time. We discuss the implications of these results for designing a better immersive system for co-located collaboration between multiple users.

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The Bent Pick Ray: An Extended Pointing Technique for Multi-User Interaction

Cited by 8 publications

References 0 publications

Evaluation of remote collaborative manipulation for scientific data analysis

Evaluation of remote collaborative manipulation for scientific data analysis

A survey of communication and awareness in collaborative virtual environments

Perceptual Conflicts in a Multi-Stereoscopic Immersive Virtual Environment: Case Study on Face-to-Face Interaction through an Avatar

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