iMetaTown: A Metaverse System with Multiple Interactive Functions Based on Virtual Reality.

This work aims to pioneer the development of a real-time interactive and immersive Metaverse Human-Computer Interaction (HCI) system leveraging Virtual Reality (VR). The system incorporates a three-dimensional (3D) face reconstruction method, grounded in weakly supervised learning, to enhance player-player interactions within the Metaverse. The proposed method, two-dimensional (2D) face images, are effectively employed in a 2D Self-Supervised Learning (2DASL) approach, significantly optimizing 3D model learning outcomes and improving the quality of 3D face alignment in HCI systems. The work outlines the functional modules of the system, encompassing user interactions such as hugs and handshakes and communication through voice and text via blockchain. Solutions for managing multiple simultaneous online users are presented. Performance evaluation of the HCI system in a 3D reconstruction scene indicates that the 2DASL face reconstruction method achieves noteworthy results, enhancing the system's interaction capabilities by aiding 3D face modeling through 2D face images. The experimental system achieves a maximum processing speed of 18 frames of image data on a personal computer, meeting real-time processing requirements. User feedback regarding social acceptance, action interaction usability, emotions, and satisfaction with the VR interactive system reveals consistently high scores. The designed VR HCI system exhibits outstanding performance across diverse applications.

Toward the Internet of Medical Things: Architecture, trends and challenges.

In recent years, the growing pervasiveness of wearable technology has created new opportunities for medical and emergency rescue operations to protect users' health and safety, such as cost-effective medical solutions, more convenient healthcare and quick hospital treatments, which make it easier for the Internet of Medical Things (IoMT) to evolve. The study first presents an overview of the IoMT before introducing the IoMT architecture. Later, it portrays an overview of the core technologies of the IoMT, including cloud computing, big data and artificial intelligence, and it elucidates their utilization within the healthcare system. Further, several emerging challenges, such as cost-effectiveness, security, privacy, accuracy and power consumption, are discussed, and potential solutions for these challenges are also suggested.

Digital twins for building industrial metaverse.

INTRODUCTION: The concept of the metaverse, a virtual world where users can interact with a computer-generated environment, has received significant attention recently. OBJECTIVES: This study aims to investigate the application and fundamental technologies of Digital Twins (DT) in the development of the industrial metaverse, to enhance factory production efficiency. METHODS: The study adopts a literature review approach to explore the architecture and key technologies of the industrial metaverse, including DT, cloud rendering, virtual-real interaction, big data visualization, and the Internet of Things. Firstly, this study analyzes the architecture and key technologies of the Industrial Metaverse, which encompass DT, cloud rendering, virtual-reality interaction, big data visualization, and the Internet of Things (IoT). These technologies are essential components in enabling the transformation from traditional manufacturing paradigms to intelligent manufacturing within the industrial metaverse. Secondly, this study investigates the key technological aspects that support DT in the industrial metaverse. It highlights the crucial role played by DT in facilitating the advancement and realization of intelligent manufacturing. RESULTS: The study finds that DT plays a crucial role in the industrial metaverse, enabling the creation of virtual replicas of physical assets that can be monitored and analyzed in real-time. CONCLUSION: The development of the industrial metaverse holds significant potential for the industrial sector, providing a platform for optimizing and improving manufacturing processes.