فناوری‌های نوظهور متاورس XR و چندرسانه‌ای ویدئویی: سیستم‌ها و کاربردهای مدرن استریم و چندرسانه‌ای (نوآوری‌های سازنده)

Improve the video multimedia services you work on or develop using tools from video service technologies such as Netflix, Disney+, YouTube, and Skype. This book introduces you to the core technologies that enable Metaverse XR (eXtended Reality) services and advanced video multimedia streaming services. First, you’ll find out about the current and future trends in Metaverse and video streaming services. XR is a combination of technologies that include MR, AR, VR, voice recognition systems, haptic and 3D-motion UIs, as well as head mounted displays) like Microsoft Hololens 2 and Oculus Quest 2. You'll review metaverse services XR applications and learn more about the core XR feature extraction technologies. With XR capabilities mastered, you can move into the main technologies for video streaming services like Netflix, Disney+, and YouTube. You’ll also about video formats, such as H.264, MPEG-4 AVC, H.265, MPEG-5, and MPEG-DASH.As well as online hosting services like content delivery network (CDN), mobile CDN, and Amazon Web Services (AWS). Additional details on content aging and updating operations along with CDN popularity predictions and contents update techniques, such as, Least Recently Used (LRU) and east Frequently Used (LFU) strategies are introduced. All these technologies enable fast, efficient, reliable, and adaptable video streaming services. They also allow for video conferencing services like Zoom, Skype and WebEx. By the time you’ve finished reading, you’ll understand how these technologies converge into the Metaverse and and offer a wide variety of development opportunities for video streaming. What You'll Learn Incorporate core AI techniques and extraction XR algorithms Enable fast, efficient, and reliable video streaming in your product, service, or app Update content with CDN popularity predictions Explore the Netflix Open Connect CDN model and characteristics Understand the operations of modern video and multimedia systems Become a leader in metaverse and video multimedia services and products. Who This Book Is For Developers, product managers, hobbyists, and students interested in learning how Metaverse XR and video streaming work and can be developed. Table of Contents About the Author About the Technical Reviewer Acknowledgments Introduction Chapter 1: Introduction to Metaverse and Video Streaming Technology and Services Metaverse XR Technology Introduction Sandbox Games Elite SimCity The Sims Habbo Grand Theft Auto III Second Life Roblox Minecraft VRChat Fortnite Meta Microsoft XR-, MR-, AR-, and VR-Based Metaverse Technologies XR Implementation History Tethered XR Devices Standalone XR Devices Metaverse XR Products and Business Smart Contracts NFT Wave ZEPETTO Metaverse Global Market Video Streaming Technology Introduction Television (TV) Cable TV HBO Cinemax Blockbuster IPTV China’s Media Services YouTube Streaming OTT Brief History of Internet-Based Streaming Media Video Streaming Services and Business Netflix Disney+ Amazon Prime Video Hulu Peacock YouTube and YouTube Premium Summary Chapter 2: Metaverse XR Components XR, MR, AR, and VR XR System Components and Workflow Right-Handed Coordinate 3D Rotational Movement Degrees of Freedom (DoF) XR View, XR Viewport, and XR Pose XR 3D Tracking Techniques Localization Techniques XR Experience XR Device and Network Performance Requirements Delay Tolerance Image and Display Requirements XR CPU and GPU Engines XR Software Engines and Platforms Lua Unreal Unity WebGL SteamVR WebXR OpenXR XR Lab Setup and Haptic Devices Manus Prime X Haptic VR Ultraleap Mid-Air Haptics HaptX Gloves DK2 Teslasuit 3D Motion Treadmills Virtuix Omni Treadmill Cyberith Virtualizer KAT Walk C Spacewalker VR Infinadeck Summary Chapter 3: XR HMDs and Detection Technology XR HMDs Meta Quest 2 Microsoft HoloLens 2 HTC VIVE Pro 2 HTC VIVE Focus 3 Valve Index Pimax Vision 8K X PlayStation VR 2 XR Operation Process AR Technology AR Feature Detection and Description Technology Feature Detection and Feature Description AR System Process AR Cloud Cooperative Computation XR Detection Process XR Feature Extraction and Description SIFT SURF FAST BRIEF ORB BRISK Summary Chapter 4: Deep Learning for Metaverse XR and Multimedia Systems Backpropagation Supervised Learning Deep Learning with RNN Deep Learning with CNN Performance of AI Systems Performance of CNN at the ImageNet Challenge Performance of RNN in Amazon’s Echo and Alexa Advanced RNN and CNN Models and Datasets Summary Chapter 5: XR and Multimedia Video Technologies XR Device Video Codecs Multimedia Codecs Skype Multimedia Codecs YouTube Multimedia Codecs Netflix Multimedia Codecs Disney+ Multimedia Technology H.264/MPEG-4 AVC Video Technology Luma and Chroma H.264 Video Profiles Non-scalable 2D Video Application Profiles Camcorders, Editing, and Professional Application Profiles Scalable Video Coding (SVC) Multiview Video Coding (MVC) H.264 AVC Encoder and Decoder H.265/MPEG-5 HEVC Video Technology H.266 VCC Video Technology Holography Technology Hologram Generation Technologies Laser Transmission Holograms Electroholography Holograms Parallax Holograms MEMS Holograms Laser Plasma Holograms Holographic Television Touchable Holograms Summary Chapter 6: Multimedia Streaming with MPEG-DASH Push vs. Pull Media Streaming Push-Based Media Streaming Pull-Based Adaptive Media Streaming HTTP Streaming MPEG-DASH Video Frame Types MPD Decoding and Playing Method YouTube MPEG-DASH Operation Example MPEG-DASH Features Summary Chapter 7: Content Delivery Network (CDN) Technology Metaverse and Multimedia Streaming CDN Facebook CDN Netflix Open Connect CDN CDN Multimedia Streaming Technology CDN Operations CDN Hierarchical Content Delivery CDN Caching Schemes CDN Content Popularity Prediction Least Recently Used (LRU) Strategy Least Frequently Used (LFU) Strategy Mobile CDN Services Summary Chapter 8: Cloud Computing and Edge Cloud Technologies AWS Cloud Support for Netflix and Disney+ Cloud Service Models IaaS PaaS SaaS Containers, Dockers, and Kubernetes Edge Computing and MEC Amazon AWS and Microsoft Azure Edge Cloud Services Amazon AWS Edge Computing Services Microsoft Azure Edge Cloud Services Summary Chapter 9: Emerging Technologies Chapter 1. Introduction to Metaverse and Video Streaming Technology and Services Chapter 2. Metaverse XR Components Chapter 3. XR HMDs and Detection Technology Chapter 4. Deep Learning for Metaverse XR and Multimedia Systems Chapter 5. XR and Multimedia Video Technologies Chapter 6. Multimedia Streaming with MPEG-DASH Chapter 7. Content Delivery Network (CDN) Technology Chapter 8. Cloud Computing and Edge Cloud Technologies Future Plans Index