DOCSLIB.ORG

Gesture-Based Head-Mounted Augmented Reality Game Development Using Leap Motion and Usability Evaluation

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Gesture-Based Head-Mounted Augmented Reality Game Development Using Leap Motion and Usability Evaluation International Conferences Interfaces and Human Computer Interaction 2021; and Game and Entertainment Technologies 2021 GESTURE-BASED HEAD-MOUNTED AUGMENTED REALITY GAME DEVELOPMENT USING LEAP MOTION AND USABILITY EVALUATION Pu-Hsuan Chien and Yang-Cheng Lin Department of Industrial Design, National Cheng Kung University No.1, University Road, Tainan, Taiwan ABSTRACT The environment of augmented reality created by head-mounted displays can provide players with an immersive gaming experience and proper gestures can enable the integration of real-world objects with the virtual environment. This study explores the usability of gesture operations applied to games and tries to find new applications using current mature gesture sensors. This study develops a head-mounted augmented reality game based on gesture recognition, and evaluates their usability and impact on the user’s interaction with the virtual interface. It uses the Unity engine and open-source glasses designed by Leap Motion to develop an adventure game, and it contains elements of a first-person shooter game. There is no need for any joystick or touch screen to control the game, as the game relies only on the player's hands to operate through a controller-less interface. The results show that the system usability score is 79.4, which indicates a good usability level. This study may be of importance in clarifying problems that may be encountered in the development of interactive-gesture head-mounted display augmented reality games. Finally, this study offers suggestions for the challenges and future of head-mounted augmented reality games. KEYWORDS Natural User Interface, Gesture, Leap Motion, Head-Mounted Displays, Augmented Reality Game 1. INTRODUCTION Games are a daily pastime for many people, and various ways of playing can affect the mental state of players (Shin, 2019). In the last decade, many human-computer interaction methods ranging from traditional keyboards to motion sensors have provided new methods of interaction. As this technology advances, games can bring players an immersive experience. Head-mounted displays (HMDs) can impart players with an immersive gaming experience. The technology behind head-mounted virtual reality (VR) games is very mature, with several devices based on them available in the market. However, HMD technology is not used as much in augmented reality (AR) games — currently, most augmented reality (AR) games are on mobile platforms, often requiring holding a mobile phone to play. In recent years, there has been an increasing research interest on AR (Gugenheimer et al., 2019), and most of the research on the use of HMDs in AR games has focused on either solving technical problems (Hua, 2017; Xiao & Benko, 2016) or on improving input factors (Xu et al., 2019). In this study, a set of head-mounted display AR games that can be controlled with both hands has been developed to bring players a new gaming experience. There are many gesture recognition sensors available. Among them, Microsoft’s Kinect and Leap Motion have much related research (Cabreira & Hwang, 2015, Vokorokos et al., 2016). Leap Motion allows users to use gestures to control the operation and is currently widely used in sign language recognition, rehabilitation, and interactive game development (Khademi et al., 2014, Potter et al., 2013). To realize the functions of gesture recognition and AR at the same time, we use the AR HMD developed by Leap Motion in 2018 with open-source glasses. Most of the components are 3D printed, so the price is lower than other head-mounted AR glasses. This method broke through the original form of operation and increased the application of AR, opening up more possibilities for human-computer interaction. Unlike the general Leap Motion operation method, it places the sensor on top of the head so it can effectively recognize gestures when moving. 149 ISBN: 978-989-8704-31-3 © 2021 To study the potential of this device, we developed an AR game, considering the player’s operation process and the game interface. The major purpose of this study was to assess the usability of this kind of prototyping game, so participants were asked to rate its usability. Finally, we put forward some problems that may be encountered in the development of this type of game. 2. RELATED WORKS The game development in this study involves many areas, such as the choice of gesture sensors, how the gestures are used in games, and the game interface design. We consider that the application of gestures in current gesture-based game operation has not been fully studied, so we have limited literature to consider in developing games. 2.1 Gesture Sensor To date, there have been many studies on the application of gesture sensors. Previous studies have also compared the advantages and disadvantages of these sensors. Some researchers have used Leap Motion in various fields. For example, Cabreira and Hwang conducted experiments on three sensors and analyzed 250 applications, of which more than half were game programs. Their analysis of 15 gestures on each platform indicated that Kinect is more limited than other devices for finger and hand tracking (Cabreira & Hwang, 2015). Leap Motion recognized a wider range of gestures. The most commonly used gestures for Myo were rotation and waving, which could be used consistently in the various programs. Vokorokos et al. (2016) also conducted experiments on three sensors in their research, using pointing, waving, rotating, and fist to determine the gesture accuracy of the devices. Many tests were conducted on the sensors of the three platforms for each movement. Kinect performed well in waving, while Leap Motion performed well in pointing, rotating, and punching. It was fast and intuitive, but the sensing distance was limited. Myo was also very good in rotation, with the advantage that the user can put their hands down to feel more comfortable. Because it uses muscle detection, motion can be easily detected even if the hands are covered or the device is placed in a pocket. Based on the above research, it can be determined that Kinect is very smooth under large-scale gesture sensing such as waving hands. However, other gestures are not very accurate. Its advantages are that it can detect the skeleton of the face and the whole body and that the detection range is wider. Leap Motion's research on AR applications is far more advanced than those of other manufacturers. (Katahira & Soga, 2015; Wozniak et al., 2016). Leap Motion provides open-source AR HMD glasses, the sensor can be placed in a head-mounted device, which solves the original distance limitation of the sensing, but no current research on these glasses has yet appeared. Based on the above research and viewpoints, and because of the good accuracy of Leap Motion and the availability for purchase, this study uses Leap Motion as the sensing device for the AR glasses. Although the sensing range is somewhat limited, changing the Leap Motion device above the HMDs can effectively address this question. 2.2 Gesture Interaction Applied to Games Existing research on the application of gestures in games, based on their recognition method, can be broadly categorized into two types: visual recognition and motion sensor recognition. Visual recognition primarily relies on Kinect, Leap Motion, and mobile phone lenses for gesture analysis (Pirker et al., 2017; Yeo et al., 2015), while motion sensor recognition uses six-axis sensors or electromyographic signals and usually requires the user to wear additional devices (Esfahlani et al., 2018; Lee et al., 2017).Regarding the research on the use of gesture interactions in games, Silpasuwanchai and Ren (2015) held that in gesture interaction games, not all operational methods are suitable for all players. Therefore, they used user feedback and user-elicitation to get a clear understanding of the actions the players felt were most intuitive and found that various people experience the game differently, and there were also differences in their actions, but there were some gestures that players agreed on. For example, the preferred gesture for shooting was the gesture of using one hand to draw a pistol. 150 International Conferences Interfaces and Human Computer Interaction 2021; and Game and Entertainment Technologies 2021 There have been several studies that have investigated the application of Leap Motion in medical, entertainment, and educational fields, such as two-handed drone operation (Fernandez et al., 2016) and hand rehabilitation exercises (Alimanova et al., 2017). The above points out the potential of Leap Motion in the natural user interface. However, little research has been done on the development of in-game applications. Overall, we believe that it has great potential in gaming and entertainment, and we use Leap Motion with AR HMDs to design and develop a game, which will help researchers study the application of human-computer interaction in related game fields in the future. 2.3 Diegetic Interface When only gestures are used, the interface plays a primary role in games. Previous studies have also pointed out that the design of the interface affects the player’s immersion (Brown & Cairns, 2004, Qin et al., 2009). The word “diegesis” was originally a term used in movies to refer to all the stories about the character. Galloway applied this concept to the role of the game. The operation of the role of the game is regarded as diegesis, and non-diegesis refers to the game outside the narrative world. He also distinguished between the behavior of the player and the character. The behavior of the player is divided into diegetic and non-diegetic elements, so according to the corresponding interface of its behavior classification, the heads-up display (HUD) can be used. The HUD is mainly for players to see, so it is an interface superimposed on the game screen (Galloway, 2006).
Load more

Recommended publications
  • P15083: Virtual Visualization for Anatomy Teaching, Training and Surgery Simulation Applications
    P15083: Virtual Visualization for Anatomy Teaching, Training and Surgery Simulation Applications Problem Definition Preamble ● Thank you for attending our review! We are looking for: ● constructive criticisms ● outside perspective Team Member Introduction Member Role Alex Dawson-Elli Team Lead - Biomedical Engineer Nate Burrell Biomedical Engineer Jascha Wilcox Biomedical Engineer Kenny LaMarca Computer Engineer Kevin Alexandre Computer Engineer context context volume rendering stereo visualization technology Background ● Anatomy is inherently a 3D problem ● conventional teaching techniques: ○ book -> 2D ○ dissection -> may discourage some students ● Modern technology is underutilized in the classroom Problem Statement Current State:Students learning anatomy from a textbook, at a low level of excitement, and a low level of exposure to modern imaging modalities Desired State: Students learning in a stereoscopic anatomy visualization environment, with a high level of excitement, and a high level of exposure to modern imaging modalities Project Goals: create a fully virtual stereo anatomy viewer Constraints: budget, pre-designed hardware, must use existing data set Stakeholders ● Project advisor ○ Dr. Christian Linte ● Teachers ○ Instructor of students (grade 6-12) ● Students ○ Our target age group is middle and high school students (grade 6-12) Use Scenario Customer Needs Customer Rqmt. # Importance Description CR1 9 Easy for a teacher to learn CR2 9 Easy for the Student to use CR3 9 Graphical Interface CR4 9 Stereo Viewing System, in 3D
    [Show full text]
  • Effects of Control Device and Task Complexity on Performance and Task Shedding During a Robotic Arm Task
    Old Dominion University ODU Digital Commons Psychology Theses & Dissertations Psychology Spring 2019 Effects of Control Device and Task Complexity on Performance and Task Shedding During a Robotic Arm Task Shelby K. Long Old Dominion University, [email protected] Follow this and additional works at: https://digitalcommons.odu.edu/psychology_etds Part of the Applied Behavior Analysis Commons, Human Factors Psychology Commons, and the Robotics Commons Recommended Citation Long, Shelby K.. "Effects of Control Device and Task Complexity on Performance and Task Shedding During a Robotic Arm Task" (2019). Master of Science (MS), Thesis, Psychology, Old Dominion University, DOI: 10.25777/yh1y-0016 https://digitalcommons.odu.edu/psychology_etds/231 This Thesis is brought to you for free and open access by the Psychology at ODU Digital Commons. It has been accepted for inclusion in Psychology Theses & Dissertations by an authorized administrator of ODU Digital Commons. For more information, please contact [email protected]. EFFECTS OF CONTROL DEVICE AND TASK COMPLEXITY ON PERFORMANCE AND TASK SHEDDING DURING A ROBOTIC ARM TASK by Shelby K. Long B.S. December 2013, Georgia Institute of Technology A Thesis Submitted to the Faculty of Old Dominion University in Partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCE PSYCHOLOGY OLD DOMINION UNIVERSITY May 2019 Approved by: James P. Bliss (Director) Yusuke Yamani (Member) Xiaoxiao Hu (Member) ABSTRACT EFFECTS OF CONTROL DEVICE AND TASK COMPLEXITY ON PERFORMANCE AND TASK SHEDDING DURING A ROBOTIC ARM TASK Shelby K. Long Old Dominion University, 2019 Director: Dr. James P. Bliss The use of robotic arms across domains is increasing, but the relationship between control features and performance is not fully understood.
    [Show full text]
  • Leap Motion Controllertm
    Leap Motion ControllerTM The world’s leading hand tracking technology The Leap Motion Controller from Ultraleap is an optical hand tracking module that captures the movement of users’ hands and fingers so they can interact naturally with digital content. Small, fast, and accurate, the Leap Motion Controller can be used for productivity applications with Windows computers, integrated into enterprise- grade hardware solutions or displays, or attached to virtual/augmented reality headsets for AR/VR/XR prototyping, research, and development. The controller is capable of tracking hands within a 3D interactive zone that extends up to 60cm (24”) or more, extending from the device in a 120×150° field of view. Leap Motion‘s software is able to discern 27 distinct hand elements, including bones and joints, and track them even when they are obscured by other parts of the hand. With a 120Hz refresh rate and low-latency software, the time between motion and photon falls beneath the human perception threshold1. An accessory component, the VR Developer Mount, allows for easy, reliable, and consistent attachment of the device to virtual reality headsets such as the Oculus Rift and HTC Vive. The Leap Motion App Gallery features 75+ legacy desktop applications and a demo suite for virtual reality. Example applications • Entertainment (location-based VR/AR experiences, arcades, amusement parks) • Healthcare (stroke rehabilitation, training, mirror, medical imaging, lazy eye treatment) • Therapy and Education (anatomic visualizations, hands-on learning) • Personnel training (flight simulators, complex computer systems) • Industrial design and engineering (automotive, assembly lines, facilities management) • Robotics (telepresence, robotic controls, AI-assisted teaching) The Leap Motion Controller features a 120×150° • Global team collaboration field of view and an interactive tracking range of more than 2 feet (60cm).
    [Show full text]
  • Natural Menu Interactions in VR with Leap Motion Masterarbeit
    Natural Menu Interactions in VR with Leap Motion Masterarbeit Zur Erlangung des Grades Master of Science (M.Sc.) im Studiengang Informatik vorgelegt von Björn Zeutzheim Erstgutachter: Prof. Dr. Stefan Müller (Institut für Computervisualistik, AG Computergraphik) Zweitgutachter: Nils Höhner, M.Sc. (Institut für Wissensmedien, IWM) Koblenz, der 6. September 2019 Erklärung Ich versichere, dass ich die vorliegende Arbeit selbständig verfasst und keine anderen als die angegebenen Quellen und Hilfsmittel benutzt habe. Ja Nein Mit der Einstellung dieser Arbeit in die Bibliothek bin ich einverstanden. □ □ . (Ort, Datum) (Unterschrift) Abstract With the appearance of modern virtual reality (VR) headsets on the consumer market, there has been the biggest boom in the history of VR technology. Naturally, this was accompanied by an increasing focus on the problems of current VR hardware. Especially the control in VR has always been a complex topic. One possible solution is the Leap Motion, a hand tracking device that was initially developed for desktop use, but with the last major software update it can be attached to standard VR headsets. This device allows very precise tracking of the user’s hands and fingers and their replication in the virtual world. The aim of this work is to design virtual user interfaces that can be operated with the Leap Motion to provide a natural method of interaction between the user and the VR environment. After that, subject tests are performed to evaluate their performance and compare them to traditional VR controllers. Zusammenfassung Mit dem Erscheinen moderner Virtual Reality (VR) Headsets auf dem Verbrauchermarkt, gab es den bisher größten Aufschwung in der Geschichte der VR Technologie.
    [Show full text]
  • Universidad Católica De Santiago De Guayaquil Facultad De Artes Y Humanidades Carrera De Ingenieria En Producción Y Dirección En Artes Multimedia
    UNIVERSIDAD CATÓLICA DE SANTIAGO DE GUAYAQUIL FACULTAD DE ARTES Y HUMANIDADES CARRERA DE INGENIERIA EN PRODUCCIÓN Y DIRECCIÓN EN ARTES MULTIMEDIA TÌTULO: CREACIÓN DE UNA APLICACIÓN MULTIMEDIA QUE DESARROLLE POR MEDIO DE JUEGOS Y ACTIVIDADES LAS HABILIDADES MOTRICES FINAS EN LOS NIÑOS DE PREESCOLAR USANDO LA REALIDAD VIRTUAL EN LOS DISPOSITIVOS MÓVILES TRABAJO DE TITULACIÓN PREVIO A LA OBTENCIÓN DEL TÍTULO DE INGENIERO EN PRODUCCIÓN Y DIRECCIÓN EN ARTES MULTIMEDIA AUTOR: ROBERTO ADELKARÍN BELTRÁN LUCAS TUTOR: LIC. LAMBERT SARANGO YAMIL, MGS Guayaquil, Ecuador 2015 UNIVERSIDAD CATÓLICA DE SANTIAGO DE GUAYAQUIL FACULTAD DE ARTES Y HUMANIDADES INGENIERIA EN PRODUCCIÓN Y DIRECCIÓN EN ARTES MULTIMEDIA CERTIFICACIÓN Certificamos que el presente trabajo fue realizado en su totalidad por Roberto Adelkarín Beltrán Lucas, como requerimiento parcial para la obtención del Título de Ingeniero en Producción y Dirección de Arte Multimedia. TUTOR ______________________ Lic. Yamil Lambert Sarango, Mgs DIRECTOR DE LA CARRERA ______________________ Lic. Víctor Hugo Moreno, Mgs Guayaquil, a los 29 del mes de septiembre del año 2015 UNIVERSIDAD CATÓLICA DE SANTIAGO DE GUAYAQUIL FACULTAD DE ARTES Y HUMANIDADES INGENIERIA EN PRODUCCIÓN Y DIRECCIÓN EN ARTES MULTIMEDIA DECLARACIÓN DE RESPONSABILIDAD Yo, Roberto Adelkarín Beltrán Lucas DECLARO QUE: El Trabajo de Titulación Creación de una aplicación multimedia que a través de juegos y actividades desarrolle las habilidades cognitivas y motrices en los niños de preescolar, usando para ello la realidad virtual en los dispositivos móviles previa a la obtención del Título de Ingeniería en producción y dirección de arte multimedia, ha sido desarrollado respetando derechos intelectuales de terceros conforme las citas que constan al pie de las páginas correspondientes, cuyas fuentes se incorporan en la bibliografía.
    [Show full text]
  • Whitepaper Head Mounted Displays & Data Glasses Applications and Systems
    Whitepaper Head Mounted Displays & Data Glasses Applications and Systems Dr.-Ing. Dipl.-Kfm. Christoph Runde Virtual Dimension Center (VDC) Fellbach Auberlenstr. 13 70736 Fellbach www.vdc-fellbach.de © Competence Centre for Virtual Reality and Cooperative Engineering w. V. – Virtual Dimension Center (VDC) System classes Application fields Directions of development Summary Content . System classes Head Mounted Display (HMD) – Video glasses – Data glasses . Simulator disease / Cyber Sickness . Application fields HMDs: interior inspections, training, virtual hedging engineering / ergonomics . Application fields data glasses: process support, teleservice, consistency checks, collaboration . Directions of development: technical specifications, (eye) tracking, retinal displays, light field technology, imaging depth sensors . Application preconditions information & integration (human, IT, processes) . Final remark 2 SystemSystem classes classes Application fields Directions of development Summary Head Mounted Displays (HMDs) – Overview . 1961: first HMD on market . 1965: 3D-tracked HMD by Ivan Sutherland . Since the 1970s a significant number of HMDs is applied in the military sector (training, additional display) Table: Important HMD- projects since the 1970s [Quelle: Li, Hua et. al.: Review and analysis of avionic helmet-mounted displays. In : Op-tical Engineering 52(11), 110901, Novembre2013] 3 SystemSystem classes classes Application fields Directions of development Summary Classification HMD – Video glasses – Data glasses Head Mounted Display
    [Show full text]
  • Controller-Free Hand Tracking for Grab-And-Place Tasks in Immersive Virtual Reality: Design Elements and Their Empirical Study
    Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 21 October 2020 doi:10.20944/preprints202010.0431.v1 Article Controller-free Hand Tracking for Grab-and-place Tasks in Immersive Virtual Reality: Design Elements and their Empirical Study Alexander Masurovsky 1,2* , Paul Chojecki1, Detlef Runde1, Mustafa Lafci1, David Przewozny1 and Michael Gaebler3 1 Fraunhofer Heinrich Hertz Institute, Berlin, Germany 2 Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Germany 3 Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany * Correspondence: [email protected] Abstract: Hand tracking enables controller-free interaction with virtual environments, which can, compared to traditional handheld controllers, make virtual reality (VR) experiences more natural and immersive. As naturalness hinges on both technological and user-based features, fine-tuning the former while assessing the latter can be used to increase usability. For a grab-and-place use case in immersive VR, we compared a prototype of a camera-based hand tracking interface (Leap Motion) with customized design elements to the standard Leap Motion application programming interface (API) and a traditional controller solution (Oculus Touch). Usability was tested in 32 young healthy participants, whose performance was analyzed in terms of accuracy, speed and errors as well as subjective experience. We found higher performance and overall usability as well as overall preference for the handheld controller compared to both controller-free solutions. While most measures did not differ between the two controller-free solutions, the modifications made to the Leap API to form our prototype led to a significant decrease in accidental drops. Our results do not support the assumption of higher naturalness for hand tracking but suggest design elements to improve the robustness of controller-free object interaction in a grab-and-place scenario.
    [Show full text]
  • Usability Evaluation of Input Devices for Navigation and Interaction in 3D
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by International SERIES on Information Systems and Management in Creative eMedia... Usability evaluation of input devices for navigation and interaction in 3D visualisation Peter Skrljˇ Jozeˇ Guna Ciril Bohak, Matija Marolt University of Ljubljana University of Ljubljana University of Ljubljana Faculty of Computer and Faculty of Electrical Faculty of Computer and Information Science Engineering Information Science [email protected] [email protected] fciril.bohak, [email protected] ABSTRACT exploration, which describes navigation through space with We present an assessment study of user experience and us- no target goal, search, where the user must navigate to a ability of different kinds of input devices for view manipula- certain goal with speed, and finally maneuvering, which de- tion in a 3D data visualisation application. Three input de- scribes slower movements but with higher precision. All of vices were compared: a computer mouse, a 3D mouse with the above mentioned aspects are important while developing six degrees of freedom, and the Leap Motion Controller - a highly usable interface for 3D navigation. a device for touchless interaction. Assessment of these de- In our case we do not address a specific aspect of navigation vices was conducted using the System Usability Scale (SUS) listed in introduction (exploration, search or maneuvering), methodology, with addition of application specific questions. we are covering the user experience. Further research for ad- To gain further insight into users’ behaviour, the users’ per- dressing individual aspects are planned as part of future work.
    [Show full text]
  • Virtual Reality Games Integration Module for Managing and Monitoring of Hand Therapy
    SBC { Proceedings of SBGames 2020 | ISSN: 2179-2259 Games and Health { Full Papers Virtual Reality Games Integration Module for Managing and Monitoring of Hand Therapy Ana Grasielle Dionísio Corrêa Adriano Rapussi Felipe Monteiro da Costa Programa de Pós-Graduação em Faculdade de Computação e Informática Faculdade de Computação e Informática Distúrbios do Desenvolvimento Universidade Presbiteriana Mackenzie Universidade Presbiteriana Mackenzie Universidade Presbiteriana Mackenzie São Paulo, Brasil São Paulo, Brasil São Paulo, Brasil [email protected] [email protected] [email protected] Raquel Cymrot Natália Regina Kintschner Silvana Maria Blascovi-Assis Escola de Engenharia Programa de Pós-Graduação em Distúrbios Programa de Pós-Graduação em Distúrbios do Universidade Presbiteriana Mackenzie do Desenvolvimento Desenvolvimento São Paulo, Brasil Universidade Presbiteriana Mackenzie Universidade Presbiteriana Mackenzie [email protected] São Paulo, Brasil São Paulo, Brasil [email protected] [email protected] Abstract—Injuries to the hand function caused by overwork need to manipulate the joystick. However, it is still a challenge or neurological problems lead to the need for intense motor to detect finer hand movements, for example, movements of rehabilitation programs. Rehabilitation training is generally grasping and releasing objects [1]. Other solutions using limited to the rehabilitation center and/or hospitals and patients cameras or wearable technologies such as data gloves are are idle at home. We have developed a module for managing and some of the hand movement capture options most used in monitoring virtual reality games, controlled by the Leap Motion manual rehabilitation [6]. Controller (LMC) sensor, for the rehabilitation of the manual function that can be used in a clinical and/or home environment.
    [Show full text]
  • THE CHALLENGE of HAND GESTURE INTERACTION in the VIRTUAL REALITY ENVIRONMENT Evaluation of In-Air Hand Gesture Using the Leap Motion Controller
    CORE Metadata, citation and similar papers at core.ac.uk Provided by Theseus Hong An Pham THE CHALLENGE OF HAND GESTURE INTERACTION IN THE VIRTUAL REALITY ENVIRONMENT Evaluation of in-air hand gesture using the Leap Motion Controller THE CHALLENGE OF HAND GESTURE INTERACTION IN THE VIRTUAL REALITY ENVIRONMENT Evaluation of in-air hand gesture using the Leap Motion Controller Hong An Pham Bachelor’s Thesis Spring 2018 Information Technology Oulu University of Applied Sciences ABSTRACT Oulu University of Applied Sciences Degree Programme in Information Technology, Internet Services Author: Hong An Pham Title of Bachelor´s thesis: The Challenge of Hand Gesture Interaction in the Virtual Reality Environment Supervisor: Lasse Haverinen Term and year of completion: Spring 2018 Number of pages: 53 In recent years, people in the world have perceived how 3D inventions change our life. Along with the rise of the Virtual Reality technology, there are two types of interaction methods for illustrating human ‘s command in the virtual environment: via controllers and via in-air hand gesture. Using in- air hand gesture is more considered because of natural manipulation and a lower cost for hardware controller. However, comparing with controller device, in-air hand gesture has many limitation of imprecise operation so it is not popular in 3D game and manufacturing industries. By means of a user study with several levels of users, this research conducts a usability test in order to analyse the factors affect in-air hand gesture interaction. With a virtual environment with an Oculus headset and a Leap Motion controller, users were free to perform gesture actions and acknowledge the world with three sensors: sight, touch and hearing.
    [Show full text]
  • Self Representation and Interaction in Immersive Virtual Reality
    Self Representation and Interaction in Immersive Virtual Reality Eros Viola a, Fabio Solari b and Manuela Chessa c Dept. of Informatics, Bioengineering, Robotics, and Systems Engineering, University of Genoa, Italy Keywords: Virtual Reality, Self Representation, Intel Realsense D435, Interaction, Leap Motion, Manus Prime Haptic Gloves, Alignment, Rigid Transformation, Live Correction. Abstract: Inserting a self-representation in Virtual Reality is an open problem with several implications for both the sense of presence and interaction in virtual environments. To cope the problem with low cost devices, we de- vise a framework to align the measurements of different acquisition devices used while wearing a tracked VR head-mounted display (HMD). Specifically, we use the skeletal tracking features of an RGB-D sensor (Intel Realsense d435) to build the user’s avatar, and compare different interaction technologies: a Leap Motion, the Manus Prime haptic gloves, and the Oculus Controllers. The effectiveness of the proposed systems is assessed through an experimental session, where an assembly task is proposed with the three different interaction medi- ums, with and without the self-representation. Users reported their feeling by answering the User Experience and Igroup Presence Questionnaires, and we analyze the total time to completion and the error rate. 1 INTRODUCTION The focus is to develop a framework that is compat- ible with the most common head-mounted displays In current Virtual Reality (VR) applications, the vi- (HMDs), and that can also be extended to other track- sual feedback of the user’s body is often missing, de- ing devices, both for the body tracking and for the spite the abundance of enabling technologies, which hands and fingers tracking.
    [Show full text]
  • Virtual Reality 3D Space & Tracking
    Virtual Reality 3D Space & Tracking Ján Cíger Reviatech SAS [email protected] http://janoc.rd-h.com/ 16.10.2014 Ján Cíger (Reviatech SAS) RV01 16.10.2014 1 / 57 Outline Who am I? Tracking Coordinates in 3D Space Introduction Position in 3D Technologies Orientation in 3D VRPN Euler angles What is VRPN Axis/angle representation Simple Example Rotation matrices (3 × 3) Quaternions Resources Ján Cíger (Reviatech SAS) RV01 16.10.2014 2 / 57 Who am I? Who am I? PhD from VRlab, EPFL, Switzerland I AI for virtual humans, how to make autonomous characters ("NPCs") smarter I Lab focused on human character animation, motion capture, interaction in VR I ≈ 20 PhD students, several post-docs, many master students. VRlab: http://vrlab.epfl.ch IIG: http://iig.epfl.ch Ján Cíger (Reviatech SAS) RV01 16.10.2014 3 / 57 Who am I? Who am I? SensoramaLab, Aalborg University, Denmark I Building a new lab focusing on new media, interaction, use in rehabilitation I Large projection system, tracking, many interactive demos I Teaching bachelor & master students, project supervision. Ján Cíger (Reviatech SAS) RV01 16.10.2014 4 / 57 Who am I? Who am I? Reviatech SAS I Applied research, looking for new technologies useful for our products/customers I Tracking, augmented reality, AI, building software & hardware prototypes. http://www.reviatech.com/ Ján Cíger (Reviatech SAS) RV01 16.10.2014 5 / 57 Coordinates in 3D Space Position in 3D Outline Who am I? Tracking Coordinates in 3D Space Introduction Position in 3D Technologies Orientation in 3D VRPN Euler angles What is VRPN Axis/angle representation Simple Example Rotation matrices (3 × 3) Quaternions Resources Ján Cíger (Reviatech SAS) RV01 16.10.2014 6 / 57 Coordinates in 3D Space Position in 3D 3D Position Carthesian I 3 perpendicular axes I Left or right handed! I Z-up vs Y-up! I Usually same scale on all axes http://viz.aset.psu.edu/gho/sem_notes/3d_ I Common units – meters, fundamentals/html/3d_coordinates.html millimetres, inches, feet.
    [Show full text]