Matthew Tait

The Effect of View Independence in a Collaborative AR System

In this paper we describe a system for remote collaboration using Augmented Reality (AR) that supports view independence. The system was designed to allow a remote user to assist a local user in an object placement task. The remote helper can navigate the local user’s scene independently from the local user by using a three-dimensional reconstruction of the environment. The remote user can also place virtual annotations in the scene that the local user views through a head mounted display. The system tracks the position of key physical objects and the local user’s head pose, displaying both to the remote user. A key advantage of this system compared to other collaborative AR interfaces is that it allows the remote expert to have an independent view into the shared task space. A user study was performed using this system with the users completing a simple mostly two-dimensional object placement task. It was designed to test how the amount of remote view independence affected collaboration. Four conditions were used with varying degrees of view independence. It was found that increased view independence led to faster task completion time, more confidence from users, and a decrease in the amount of time spent communicating verbally during the task. However, varying the view independence did not significantly change the accuracy of the placement of objects. The implications of the results are discussed along with directions for future research.

[Poster] View independence in remote collaboration using AR

This poster presents an Augmented Reality (AR) system for remote collaboration that allows a remote user to navigate a local users scene, independently from their viewpoint. This is achieved by using a 3D scan and reconstruction of the users environment. The remote user can place virtual objects in the scene that the local user views through a head mounted display (HMD), helping them place real objects. A user study tested how the amount of remote view independence affected collaboration. We found that increased view independence led to faster task completion, more user confiden), helping them place real objects. A user study tested how the amount of remote view independence affected collaboration. We found that increased view independence led to faster task completion, more user confidence, and a decrease in verbal communication, but object placement accuracy remained unchanged.

CoSense: Creating Shared Emotional Experiences

In this paper we describe a prototype wearable interface that shares a users first person view and their current emotional state with a remote user in order to create a shared emotional experience. A user evaluation was conducted to explore which interface cues best helped a remote user understand what the local user was feeling. The results showed simple visual cues provided a significantly enhanced experience over no cues at all, or a more detailed data representation.

A projected augmented reality system for remote collaboration

This paper describes an AR system for remote collaboration using a captured 3D model of the local users scene. In the system a remote user can manipulate the scene independently of the view of the local user and add AR annotations that appear projected into the real world. Results from a pilot study and the design of a further full study are presented.