DOCTORAATSPROEFSCHRIFT - EDM - UHasselt

More documents

Recommendations

Info

$Reflectance Model for Diffraction - EDM - UHasselt$

4 Problem Statement result, most interaction approaches have been developed in an ad hoc fashion. Consequently, it is very hard to find relevant information on how exactly VE interactions are implemented and which underlying mechanisms are used in these systems, since most publications hardly spend any attention on the matter. As a result, although many systems are graphically very realistic, with respect to interaction, most professional VE systems are fairly static and focus on communicational aspects. Most systems only allow the most basic tasks, such as travel through the virtual world. Most other professional interactive systems have focused on 3D modeling aspects, allowing users to select and move static objects in the environment.
Contributions The overall purpose of this work is to investigate how more lively and realistic VE experiences can be achieved. Instead of focusing on the graphical aspects, we try to achieve this by narrowing the gap between real-life and virtual world interaction possibilities. In contrast to ad hoc approaches, we seek a more general solution that is able to support NVE requirements. Therefore, a new, general way of modeling and executing VE interactions is required. The problem of realistic interactions is however not limited to their representation and execution mechanism. It requires the consideration of several related fields, such as realistic simulation and animation, user embodiment and human computer interaction as well. Moreover, to enable more advanced useful interactions, all these interaction components need to be attuned to each other. How this can be realized is also the subject of this investigation. This dissertation reports on our efforts in creating more interactive VE solutions and describes: • the design, implementation and evaluation of a new general way of providing dynamic interaction for VEs: the interactive object approach. This consists of a new general-purpose interaction mechanism enabling more dynamic VEs. The proposed system is designed to deal with all possible interactions in a virtual world. The idea is to construct a world using only interactive objects that contain their own interaction information. As a result, the object interactions become applicationindependent and only a single interaction scheme is required to handle
Page 1: DOCTORAATSPROEFSCHRIFT 2008 | Schoo
Page 5 and 6: Acknowledgments A researcher’s wo
Page 7 and 8: Abstract The field of networked vir
Page 9 and 10: Contents Acknowledgments i Abstract
Page 11 and 12: CONTENTS vii 8.1.2 Inverse Kinemati
Page 13 and 14: AI Artificial Intelligent AOI Area
Page 15 and 16: List of Figures 1.1 The different s
Page 17 and 18: LIST OF FIGURES xiii 10.1 Illustrat
Page 19 and 20: General Introduction The idea of cr
Page 21: Problem Statement One way of explai
Page 25 and 26: Although the field we are working i
Page 27 and 28: This dissertation comprises five pa
Page 29: Part I BACKGROUND
Page 32 and 33: 14 TABLE OF CONTENTS
Page 34 and 35: 16 Defining Interactive Virtual Rea
Page 46 and 47: 28 A Brief Historical Overview Figu
Page 48 and 49: 30 A Brief Historical Overview comm
Page 50 and 51: 32 A Brief Historical Overview Figu
Page 52 and 53: 34 A Brief Historical Overview 2.2
Page 54 and 55: 36 A Brief Historical Overview (a)
Page 57 and 58: Table of Contents 3 Introduction 41
Page 59 and 60: CHAPTER3 Introduction In the genera
Page 61 and 62: Another interesting point, in the c
Page 63 and 64: CHAPTER4 Related Work While modelin
Page 65 and 66: proach, interactive surfaces descri
Page 67 and 68: CHAPTER5 A Dynamic Interactive Obje
Page 69 and 70: 5.2 Interactive Objects and Dynamic
Page 71 and 72: 5.2 Interactive Objects and Dynamic
Page 73 and 74:
5.2 Interactive Objects and Dynamic
Page 75 and 76:
5.3 The Interaction Layer 57 Listin
Page 77 and 78:
5.3 The Interaction Layer 59 Task 3
Page 79 and 80:
5.3 The Interaction Layer 61 Figure
Page 81 and 82:
5.4 Network Distribution and Simula
Page 83 and 84:
5.5 Evaluation of the Interactive O
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
CHAPTER6 Conclusions In this part,
Page 91:
Part III CREATING MORE REALISTIC DY
Page 94 and 95:
76 TABLE OF CONTENTS
Page 96 and 97:
78 Introduction to recent advances
Page 98 and 99:
80 Introduction
Page 100 and 101:
82 Related Work Figure 8.1: A model
Page 102 and 103:
84 Related Work Figure 8.3: Illustr
Page 104 and 105:
86 Related Work Figure 8.4: Ragdoll
Page 106 and 107:
88 Related Work
Page 108 and 109:
90 The ExtReAM Library: Extensible
Page 110 and 111:
Page 112 and 113:
Page 114 and 115:
Page 116 and 117:
Page 118 and 119:
Page 120 and 121:
102 A Physically Simulated Dynamic
Page 122 and 123:
Page 124 and 125:
Page 126 and 127:
Page 128 and 129:
110 Conclusions application develop
Page 131 and 132:
Table of Contents 12 Introduction 1
Page 133 and 134:
CHAPTER12 Introduction In the first
Page 135 and 136:
117 effector of the IK chain of an
Page 137 and 138:
CHAPTER13 Related Work In order to
Page 139 and 140:
121 the rendering of rather static
Page 141 and 142:
123 temperature and galvanic skin r
Page 143 and 144:
CHAPTER14 An Avatar Control Method
Page 145 and 146:
14.2 A Direct Avatar Controller Exp
Page 147 and 148:
14.3 Distributing Animation Informa
Page 149 and 150:
14.4 Results 131 frame, resulting i
Page 151 and 152:
14.4 Results 133 Figure 14.3: Resul
Page 153 and 154:
CHAPTER15 A Physical Travel Method
Page 155 and 156:
15.1 Creating A Haptic Controller b
Page 157 and 158:
15.2 Enabling Physical Travel 139 W
Page 159 and 160:
15.2 Enabling Physical Travel 141 t
Page 161 and 162:
15.2 Enabling Physical Travel 143 r
Page 163 and 164:
CHAPTER16 Evaluating the Effects of
Page 165 and 166:
16.1 The Haptic Travel Experiment 1
Page 167 and 168:
16.1 The Haptic Travel Experiment 1
Page 169 and 170:
16.2 Experimental Results 151 (a) (
Page 171 and 172:
16.2 Experimental Results 153 pare
Page 173 and 174:
16.2 Experimental Results 155 Figur
Page 175 and 176:
CHAPTER17 Conclusions In contrast t
Page 177:
Part V CONCLUSIONS AND FUTURE RESEA
Page 180 and 181:
162 General Conclusions concepts of
Page 182 and 183:
164 Directions for Further Research
Page 185 and 186:
APPENDIXA Publications [Quax 03] P.
Page 187 and 188:
APPENDIXB Dutch Summary - Samenvatt
Page 189 and 190:
APPENDIXC C.1 Interactive Door Obje
Page 191 and 192:
C.1 Interactive Door Object 173 <
Page 193 and 194:
C.2 Physical Interactive Door Objec
Page 195 and 196:
REFERENCES [3ds Max 07] Autodesk 3d
Page 197 and 198:
179 Almitos, 1995. [Cal3D 07] Cal3D
Page 199 and 200:
181 [Granny3D 07] Granny3D. http: /
Page 201 and 202:
183 [Magnusson 02] C. Magnusson, K.
Page 203 and 204:
185 Interaction, vol. 7, no. 4, pag
Page 205:
187 Constraints for Articulated Fig
show all

DOCTORAATSPROEFSCHRIFT - EDM - UHasselt

Create successful ePaper yourself

Delete template?

Save as template?