扩展现实（XR）技术将互联网3.0带入沉浸式体验中。用户可以在一个三维虚拟环境中通过XR与去中心化的网站和服务互动。本报告首先综述扩展现实（包括VR、AR、MR）领域的主要挑战与技术趋势，包括人机交互技术、逼真有效的渲染技术、超逼真的虚拟形象技术、XR全息传送技术、数字孪生技术、XR生态系统、云XR趋势、元宇宙XR趋势，及AI赋能XR；接着详述AI在XR领域的主要应用，包括增强互动感与沉浸感（通过自然语言处理和语音识别、手势和身体运动识别、眼动追踪和情感识别、神经全息技术等）、实时环境理解与适应（包括对象和场景识别、空间映射和场景重建、上下文感知等）、内容创建（自动化3D建模和动画制作等）、行为分析和生物反馈、个性化体验、无障碍性辅助技术、零售和营销，及AI驱动的虚拟形象和数字人。
Extended Reality（XR）Technologies Bring Immersive Experiences to Web 3.0. Users can interact with decentralized websites and services in a 3D virtual environment through XR. This report first reviews the main challenges and technological trends in the field of XR（including VR，AR，and MR），such as human-computer interaction，realistic and effective rendering，ultra-realistic virtual avatars，XR holographic teleportation，digital twins，ecosystems，cloud trends，metaverse trends，and the revolution brought by AI to XR. It then details the main technologies and applications of AI in the XR field，including enhancing interactivity and immersion（through natural language processing and speech recognition，gesture and body movement recognition，eye-tracking and emotion recognition，neural holography，etc.），real-time environment understanding and adaptation（object and scene recognition，spatial mapping and scene reconstruction，context awareness，etc.），content creation（automated 3D modeling and animation and video production），behavior analysis and biofeedback，personalized experiences，accessibility assistive technologies，retail and marketing，and AI-driven virtual avatars and digital human creation.
| Keywords： | AIWeb 3.0Digital HumanXRImmersive |
