TEKNIK INTERAKSI UNIMANUAL PUSH AND PULL MENGGUNAKAN DATA GLOVE

2016 ◽  
Vol 78 (12-3) ◽  
Author(s):  
Arief Hydayat ◽  
Haslina Arshad ◽  
Nazlena Mohamad Ali ◽  
Lam Meng Chun
Keyword(s):  
Virtual Environments ◽  
Motion Tracking ◽  
Interaction Techniques ◽  
3D Interaction ◽  
Interaction Technique ◽  
Hand Gestures ◽  
Data Glove ◽  
3D Objects ◽  
3D User Interface ◽  
Push And Pull

In a 3D user interface, interaction plays an important role in helping users to manipulate 3D objects in virtual environments. 3D devices, such as data glove and motion tracking, can potentially give users the opportunity to manipulate 3D objects in virtual reality environments such as checking, zooming, translating, rotating, merging and splitting 3D objects in a more natural and easy manner through the use of hand gestures. Hand gestures are often applied in 3D interaction techniques for converting the manipulation mode. This paper will discuss the interaction technique in a virtual environment using a combination of the Push and Pull navigation and the rotation technique. The unimanual use of these 3D interaction techniques can improve the effectiveness of users in their interaction with and manipulation of 3D objects. This study has enhanced the capability of the unimanual 3D interaction technique in terms of 3D interaction feedback in virtual environments.

scholarly journals 3DUI-EF: Towards a Framework for Easy Empirical Evaluation of 3D User Interfaces and Interaction Techniques

2010 ◽  
Vol 9 (1) ◽  
pp. 73-80 ◽  
Author(s):  
Christophe Domingues ◽  
Samir Otmane ◽  
Malik Mallem
Keyword(s):  
Virtual Reality ◽  
User Interfaces ◽  
Empirical Evaluation ◽  
Interaction Techniques ◽  
3D Interaction ◽  
Interaction Technique ◽  
Data Mining Algorithms ◽  
Development Lifecycle ◽  
3D User Interface ◽  
3D User Interfaces

Designing usable and effective 3D User Interfaces and 3D Interaction Techniques is very challenging for Virtual Reality system developers and human factors specialists. Indeed, time consuming empirical evaluation is necessary to have an idea about the goodness of the 3D User Interface (3DUI) and the 3D Interaction Technique (3DIT) at the end of their development lifecycle. This may induce a huge loss of time if the result appears not to be satisfying in the end. Moreover, 3DUI evaluation is much more complex than 2D User Interfaces evaluation which is due to heterogeneous Virtual Reality (VR) devices and 3DIT. The aim of this work is to provide a framework allowing developers and experimenters to quickly evaluate 3DUIs and 3DITs during the design and the development lifecycle. The proposed framework is divided into two tools. The first one enables to create an evaluation protocol based on a knowledge database using two data mining algorithms, the "C4.5" to avoid from impossible combinations between devices and indicators and the "Spv Assoc Tree" to build a decision tree between indicators and factors. The second tool of the framework is an Evaluation Virtual Environment (EVE) to perform the evaluation according the protocol created with the first tool.

scholarly journals The Effects of Augmented Reality Interaction Techniques on Egocentric Distance Estimation Accuracy

2019 ◽  
Vol 9 (21) ◽  
pp. 4652 ◽  
Author(s):  
Chiuhsiang Joe Lin ◽  
Dino Caesaron ◽  
Bereket Haile Woldegiorgis
Keyword(s):  
Virtual Environments ◽  
Completion Time ◽  
Distance Estimation ◽  
Estimation Accuracy ◽  
Task Completion ◽  
Interaction Techniques ◽  
Egocentric Distance ◽  
Interaction Technique ◽  
Task Completion Time ◽  
3D Objects

Recent developments in virtual environment applications allow users to interact with three-dimensional (3D) objects in virtual environments. As interaction with 3D objects in virtual environments becomes more established, it is important to investigate user performance with such interaction techniques within a specific task. This study investigated two interaction modes, direct and indirect, depending on how the users interacted with the 3D objects, by measuring the accuracy of egocentric distance estimation in a stereoscopic environment. Fourteen participants were recruited to perform an acquisition task with both direct pointing and indirect cursor techniques at three egocentric distances and three task difficulty levels. The accuracy of the egocentric distance estimation, throughput, and task completion time were analyzed for each interaction technique. The indirect cursor technique was found to be more accurate than the direct pointing one. On the other hand, a higher throughput was observed with the direct pointing technique than with the indirect cursor technique. However, there were no significant differences in task completion time between the two interaction techniques. The results also showed accuracy to be higher at the greatest distance (150 cm from the participant) than at the closer distances of 90 cm and 120 cm. Furthermore, the difficulty of the task also significantly affected the accuracy, with accuracy lower in the highest difficulty condition than in the medium and low difficulty conditions. The findings of this study contribute to the understanding of user-interaction techniques in a stereoscopic environment. Furthermore, developers of virtual environments may refer to these findings in designing effective user interactions, especially those in which performance relies on accuracy.

Evaluation of Whole-Body Navigation and Selection Techniques in Immersive 3D Environments

2012 ◽  
Author(s):  
Florian Klompmaker ◽  
Alexander Dridger ◽  
Karsten Nebe
Keyword(s):  
Virtual Environments ◽  
User Study ◽  
Haptic Feedback ◽  
Microsoft Kinect ◽  
Whole Body ◽  
Interaction Techniques ◽  
Depth Sensing ◽  
3D Interaction ◽  
Body Interaction ◽  
Projection Screen

Since 2010 when the Microsoft Kinect with its integrated depth-sensing camera appeared on the market, completely new kinds of interaction techniques have been integrated into console games. They don’t require any instrumentalization and no complicated calibration or time-consuming setup anymore. But even having these benefits, some drawbacks exist. Most games only enable the user to fulfill very simple gestures like waving, jumping or stooping, which is not the natural behavior of a user. In addition the depth-sensing technology lacks of haptic feedback. Of course we cannot solve the lack of haptic feedback, but we want to improve the whole-body interaction. Our goal is to develop 3D interaction techniques that give a maximum of freedom to the user and enable her to perform precise and immersive interactions. This work focuses on whole-body interaction in immersive virtual environments. We present 3D interaction techniques that provide the user with a maximum of freedom and enables her to operate precisely and immersive in virtual environments. Furthermore we present a user study, in which we analyzed how Navigation and Manipulation techniques can be performed by users’ body-interaction using a depth-sensing camera and a huge projection screen. Therefore three alternative approaches have been developed and tested: classical gamepad interaction, an indirect pointer-based interaction and a more direct whole-body interaction technique. We compared their effectiveness and preciseness. It turned out that users act faster, while using the gamepad, but generate significantly more errors at the same time. Using depth-sensing based whole-body interaction techniques it became apparent, that the interaction is much more immersive, natural and intuitive, even if slower. We will show the advantages of our approach and how it can be used in various domains, more effectively and efficiently for their users.

scholarly journals Evaluation on User Perception Effect based on Interaction Techniques in the Stereoscopic Environment

2021 ◽  
Vol 15 (2) ◽  
pp. 49-55
Author(s):  
Dino Caesaron ◽  
Rio Prasetyo Lukodono ◽  
Yunita Nugrahaini Safrudin
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Specific Interaction ◽  
Three Dimensional ◽  
Direct Interaction ◽  
Indirect Interaction ◽  
Interaction Techniques ◽  
Interaction Technique ◽  
3D Objects ◽  
Interaction Approach

The interaction of user performance with three-dimensional (3D) objects has become an important issue in the recent development of virtual reality applications. Additionally, the basic conviction of current Virtual Reality (VR) supports the development of the viable interface between humans and machines. The research focuses on the user’s interaction technique by considering two approaches (direct and indirect interaction techniques) for the users while interacting with threedimensional objects. Numerous possible uses can benefit from virtual reality by considering a few fundamental visual and cognitive activities in the Virtual Environment (VE), such as the interpretation of space that users of clear and indirect perception are not well established. The experiment is performed in a stereoscopic environment using a reciprocal tapping task. Participants are expected to use direct pointing as well as indirect cursor techniques to select a stereoscopic spherical target. The results show that, in the sense of a direct interaction technique, user recognition of an object appears to converge in the center of a simulated area. Unfortunately, this convergence is not demonstrated in the indirect cursor situation. The pointing estimation from the users is more accurate when using the indirect interaction approach. The findings provide an understanding of the interaction characteristics done by the users in the stereoscopic environment. Importantly, developers of a virtual environment may use the result when developing effective user interface perception in specific interaction techniques.

scholarly journals Controlling Teleportation-Based Locomotion in Virtual Reality with Hand Gestures: A Comparative Evaluation of Two-Handed and One-Handed Techniques

Electronics ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 715
Author(s):  
Alexander Schäfer ◽  
Gerd Reis ◽  
Didier Stricker
Keyword(s):  
Virtual Reality ◽  
Virtual Worlds ◽  
User Preferences ◽  
Interaction Techniques ◽  
Hand Gestures ◽  
Wide Range ◽  
Effectiveness And Efficiency ◽  
High Degree ◽  
Additional Hardware ◽  
Comprehensive Study

Virtual Reality (VR) technology offers users the possibility to immerse and freely navigate through virtual worlds. An important component for achieving a high degree of immersion in VR is locomotion. Often discussed in the literature, a natural and effective way of controlling locomotion is still a general problem which needs to be solved. Recently, VR headset manufacturers have been integrating more sensors, allowing hand or eye tracking without any additional required equipment. This enables a wide range of application scenarios with natural freehand interaction techniques where no additional hardware is required. This paper focuses on techniques to control teleportation-based locomotion with hand gestures, where users are able to move around in VR using their hands only. With the help of a comprehensive study involving 21 participants, four different techniques are evaluated. The effectiveness and efficiency as well as user preferences of the presented techniques are determined. Two two-handed and two one-handed techniques are evaluated, revealing that it is possible to move comfortable and effectively through virtual worlds with a single hand only.

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