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Nextgen XR Requirements State-Of-The-Art

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Nextgen XR Requirements State-Of-The-Art NextGen XR Requirements State-of-the-Art HUMOR (HUMAN OPTIMIZED XR) PROJECT DIPANJAN DAS THOMAS MCKENZIE Early Stage Researcher Postdoctoral Researcher University of Eastern Finland Aalto University PREIN FLAGSHIP PROJECT Author: Dipanjan Das and Thomas McKenzie NEXTGEN XR REQUIREMENTS STATE-OF-THE-ART | HumOR (Human Optimized XR) Project Document Change History Version Date Authors Description of change 01 1-09-2020 Dipanjan Das Formatting done 02 7-09-2020 Dipanjan Das Formatting done 03 15-09-2020 Dipanjan Das Revised edition 04 6-11-2020 Thomas McKenzie Revised edition NEXTGEN XR REQUIREMENTS STATE-OF-THE-ART | HumOR (Human Optimized XR) Project 1 Acronyms used in this Report AI Artificial Intelligence AMOLED Active Matrix Organic Light Emitting Diode ANC Active Noise Cancellation AR Augmented Reality DoF Degree of Freedom FOV Field of View HUD Heads-up Display HumOR Human Optimized XR HRTF Head Related Transfer Function LCD Liquid Crystal Display MR Mixed Reality MTF Modulation Transfer Function NA Not Available OEM Optical Equipment Manufacturer OLED Organic Light Emitting Diode OS Operating System OST Optical See-through QoE Quality of Experience RAM Random Access Memory ROM Read Only Memory SBP Space Bandwidth Product SLM Spatial Light Modulator SMEs Small and Medium-sized Enterprises SoA State-of-the-Art VAC Vergence and Accommodation Conflict VR Virtual Reality VST Visual See-through XR Extended Reality NEXTGEN XR REQUIREMENTS STATE-OF-THE-ART | HumOR (Human Optimized XR) Project 2 Contents Document Change History .............................................................................................................................. 1 Acronyms used in this Report ........................................................................................................................ 2 Contents ............................................................................................................................................................ 3 Forewords ......................................................................................................................................................... 6 Background ...................................................................................................................................................... 6 Methodology ..................................................................................................................................................... 6 1.0 Introduction ............................................................................................................................................... 6 1.1 Reality Overview ....................................................................................................................................... 6 1.2 What is Augmented Reality (AR)? ........................................................................................................... 8 1.2.1 AR systems ........................................................................................................................................... 8 1.2.2 Types of AR systems ............................................................................................................................. 9 1.2.3 Wearable AR Displays ......................................................................................................................... 10 1.2.4 Stereoscopic head-mounted AR displays ........................................................................................... 10 1.2.5 Next generation 3D displays ............................................................................................................... 11 1.2.6 Varifocal displays ............................................................................................................................... 11 1.2.7 Multifocal displays ............................................................................................................................. 11 1.2.8 Light field displays ............................................................................................................................. 12 1.2.9 Holographic displays .......................................................................................................................... 12 1.2.10 Comparison of next generation 3D displays for AR systems ........................................................... 13 1.2.11 Auditory AR technology .................................................................................................................. 13 1.3 What is Virtual Reality (VR)? ................................................................................................................ 13 1.3.1 Types of VR systems .......................................................................................................................... 14 1.3.11 Mobile VR .................................................................................................................................... 14 1.3.12 Tethered VR ................................................................................................................................. 15 1.3.2 VR device applications ....................................................................................................................... 15 1.3.3 Issues in VR devices ........................................................................................................................... 15 1.3.4 VR sickness - human factor for VR .................................................................................................... 15 1.3.5 Eye strain, seizures, aftereffects ......................................................................................................... 15 1.3.6 Hardware challenges for VR .............................................................................................................. 16 1.3.7 Latency ............................................................................................................................................... 16 1.3.8 Auditory VR technology .................................................................................................................... 16 1.4 What is Mixed Reality (MR)?................................................................................................................. 16 1.4.1 Human factors for NextGen MR requirements .................................................................................. 18 1.4.2 Human vision FOV ............................................................................................................................. 18 1.4.3 Display FOV and see-through FOV for various AR/VR smart glasses ............................................. 19 1.5 What is Extended Reality (XR)? ............................................................................................................ 20 1.5.1 XR ecosystem and the next generation XR device requirements ....................................................... 20 NEXTGEN XR REQUIREMENTS STATE-OF-THE-ART | HumOR (Human Optimized XR) Project 3 1.5.2 Display challenges .............................................................................................................................. 21 1.5.3 Common illumination ......................................................................................................................... 21 1.5.4 Motion tracking .................................................................................................................................. 21 1.5.5 Power and thermal efficiency ............................................................................................................. 22 1.5.6 Connectivity ....................................................................................................................................... 22 1.5.7 Current immersive Virtual Reality extreme requirements and challenges ......................................... 22 1.5.71 Visual quality ................................................................................................................................ 23 1.5.72 Sound quality ................................................................................................................................ 23 1.5.73 Intuitive interactions ..................................................................................................................... 24 2.0 Reasonable Specifications ....................................................................................................................... 25 2.1 AR/VR/MR Optical Device Specifications ............................................................................................ 25 2.1.1 Field of view ....................................................................................................................................... 25 2.1.2 Aspect ratio ......................................................................................................................................... 25 2.1.3 Eye-box............................................................................................................................................... 25 2.1.4 Exit pupil, eye relief and vertex distance............................................................................................ 26 2.1.5 Stereo overlap ..................................................................................................................................... 26 2.1.6
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