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AR Pointer: Advanced Ray-Casting Interface Using Laser Pointer Metaphor for Object Manipulation in 3D Augmented Reality Environment
In this paper, we propose AR Pointer, a new augmented reality (AR) interface that allows users to manipulate three-dimensional (3D) virtual objects in AR environment. AR Pointer uses a built-in 6-degrees of freedom (DoF) inertial measurement unit (IMU) sensor in an off-the-shelf mobile device to cas...
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Published in: | Applied sciences 2019-08, Vol.9 (15), p.3078 |
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creator | Ro, Hyocheol Byun, Jung-Hyun Park, Yoon Jung Lee, Nam Kyu Han, Tack-Don |
description | In this paper, we propose AR Pointer, a new augmented reality (AR) interface that allows users to manipulate three-dimensional (3D) virtual objects in AR environment. AR Pointer uses a built-in 6-degrees of freedom (DoF) inertial measurement unit (IMU) sensor in an off-the-shelf mobile device to cast a virtual ray that is used to accurately select objects. It is also implemented using simple touch gestures commonly used in smartphones for 3D object manipulation, so users can easily manipulate 3D virtual objects using the AR Pointer, without a long training period. To demonstrate the usefulness of AR Pointer, we introduce two use-cases, constructing an AR furniture layout and AR education. Then, we conducted two experiments, performance tests and usability tests, to represent the excellence of the designed interaction methods using AR Pointer. We found that AR Pointer is more efficient than other interfaces, achieving 39.4% faster task completion time in the object manipulation. In addition, the participants gave an average of 8.61 points (13.4%) on the AR Pointer in the usability test conducted through the system usability scale (SUS) questionnaires and 8.51 points (15.1%) on the AR Pointer in the fatigue test conducted through the NASA task load index (NASA-TLX) questionnaire. Previous AR applications have been implemented in a passive AR environment where users simply check and pop up the AR objects those are prepared in advance. However, if AR Pointer is used for AR object manipulation, it is possible to provide an immersive AR environment for the user who want/wish to actively interact with the AR objects. |
doi_str_mv | 10.3390/app9153078 |
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subjects | Augmented reality augmented reality interface Authoring Cameras Computer graphics Education Furniture head-mounted display head-mounted display interface intelligent user interface International conferences mixed reality ray-casting ray-casting interface Rotation Smartphones Software Usability User interface Virtual environments |
title | AR Pointer: Advanced Ray-Casting Interface Using Laser Pointer Metaphor for Object Manipulation in 3D Augmented Reality Environment |
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