Virtual Reality allows rapid prototyping and simulation of physical artefacts, which would be di cult and expensive to perform otherwise. On the other hand, when the design process is complex and involves multiple stakeholders, decisions are taken in meetings hosted in the physical world. In the case of aerospace industrial designs, the process is accelerated by having asymmetric collaboration between the two locations: experts discuss the possibilities in a meeting room while a technician immersed in VR tests the selected alternatives. According to experts, the current approach is not without limitations, and in this work, we present prototypes designed to tackle them. e described artefacts were created to address the main issues: awareness of the remote location, remote interaction and manipulation, and navigation between locations. First feedback from experts regarding the prototypes is also presented. e resulting design considerations can be used in other asymmetric collaborative scenarios.

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To cite this version:Damien Clergeaud, Pascal Guitton. Design of an annotation system for taking notes in virtual reality. ABSTRACTThe industry uses immersive virtual environments for testing engineering solutions. Annotation systems allow capturing the insights that arise during those virtual reality sessions. However, those annotations remain in the virtual environment. Users are required to return to virtual reality to access it.We propose a new annotation system for VR. The design of this system contains two important aspects. First, the digital representation of the annotations enables to access the annotation in both virtual and physical world. Secondly, the interaction technique for taking notes in VR is designed to enhance the feeling of bringing the annotations from the physical world to the virtual and vice versa. We also propose the first implementation of this design.

Figure 1: Left: Outside view of a launcher. Middle: In the little black cylinder of this launcher, an operator is working in virtual reality with an HMD. The red virtual object represents his avatar. Right: At the same time, remotely in the virtual environment, a second operator is using Pano to interact with the first operator. Thanks to Pano, he can see the entire interior of the launcher. ABSTRACTVirtual Reality experiments have enabled immersed users to perform virtual tasks in a Virtual Environment (VE). Before beginning a task, however, users must locate and select the different objects they will need in the VE. This first step is important and affects global performance in the virtual task. If a user takes too long to locate and select an object, the duration of the task is increased. Moreover, both the comfort and global efficiency of users deteriorate as search and selection time increase.We have developed Pano, a technique which reduces this time by increasing the users natural field of view. More precisely, we provide a 360 panoramic virtual image which is displayed on a specific window, called the PanoWindow. Thanks to the PanoWindow, users can perceive and interact with the part of the Virtual Environment (VE) that is behind them without any additional head or body movement. In this paper, we present two user studies with 30 and 21 participants in different VEs. For the first study, participants were invited to perform object-finding tasks with and without Pano. The second study involved position-estimating tasks in order to know if the PanoWindow image enables users to build an accurate representation of the environment. First, the results show that Pano both reduces task duration and improves user comfort. Second, they demonstrate that good object-localization accuracy can be achieved using Pano.

In this work, we explore a new form of juggling. The juggler interacts with balls carried with nanodrones using 3D gestures. In this paper, we discuss technological as well as interaction issues.