Spatial computing is a technological advancement that facilitates the
seamless integration of devices into the physical environment, resulting in a
more natural and intuitive digital world user experience. Spatial computing has
the potential to become a significant advancement in the field of computing.
From GPS and location-based services to healthcare, spatial computing
technologies have influenced and improved our interactions with the digital
world. The use of spatial computing in creating interactive digital
environments has become increasingly popular and effective. This is explained
by its increasing significance among researchers and industrial organisations,
which motivated us to conduct this review. This review provides a detailed
overview of spatial computing, including its enabling technologies and its
impact on various applications. Projects related to spatial computing are also
discussed. In this review, we also explored the potential challenges and
limitations of spatial computing. Furthermore, we discuss potential solutions
and future directions. Overall, this paper aims to provide a comprehensive
understanding of spatial computing, its enabling technologies, their impact on
various applications, emerging challenges, and potential solutions.

该论文旨在全面了解空间计算、其支持技术、对各种应用的影响、新兴挑战以及潜在解决方案。

空间计算：概念、应用、挑战与未来方向

Spatial Computing: Concept, Applications, Challenges and Future  Directions

The Metaverse offers a second world beyond reality, where boundaries are
non-existent, and possibilities are endless through engagement and immersive
experiences using the virtual reality (VR) technology. Many disciplines can
benefit from the advancement of the Metaverse when accurately developed,
including the fields of technology, gaming, education, art, and culture.
Nevertheless, developing the Metaverse environment to its full potential is an
ambiguous task that needs proper guidance and directions. Existing surveys on
the Metaverse focus only on a specific aspect and discipline of the Metaverse
and lack a holistic view of the entire process. To this end, a more holistic,
multi-disciplinary, in-depth, and academic and industry-oriented review is
required to provide a thorough study of the Metaverse development pipeline. To
address these issues, we present in this survey a novel multi-layered pipeline
ecosystem composed of (1) the Metaverse computing, networking, communications
and hardware infrastructure, (2) environment digitization, and (3) user
interactions. For every layer, we discuss the components that detail the steps
of its development. Also, for each of these components, we examine the impact
of a set of enabling technologies and empowering domains (e.g., Artificial
Intelligence, Security & Privacy, Blockchain, Business, Ethics, and Social) on
its advancement. In addition, we explain the importance of these technologies
to support decentralization, interoperability, user experiences, interactions,
and monetization. Our presented study highlights the existing challenges for
each component, followed by research directions and potential solutions. To the
best of our knowledge, this survey is the most comprehensive and allows users,
scholars, and entrepreneurs to get an in-depth understanding of the Metaverse
ecosystem to find their opportunities and potentials for contribution.

该文档介绍了多层次开发管道，包含计算、网络、通信和硬件基础设施，然后详细阐述了其中每个组件的发展细节以及相关技术对其进展的影响。最后概括性地介绍了该环境所面临的挑战和未来的研究方向，可为用户、学者和企业家提供全面的 Metaverse 生态系统的理解，以发现他们的机遇和潜力。

元宇宙：调查、趋势、新型管道生态系统和未来展望

The Metaverse: Survey, Trends, Novel Pipeline Ecosystem & Future  Directions

The rapid progress in digitalization and automation have led to an
accelerated growth in healthcare, generating novel models that are creating new
channels for rendering treatment with reduced cost. The Metaverse is an
emerging technology in the digital space which has huge potential in
healthcare, enabling realistic experiences to the patients as well as the
medical practitioners. The Metaverse is a confluence of multiple enabling
technologies such as artificial intelligence, virtual reality, augmented
reality, internet of medical devices, robotics, quantum computing, etc. through
which new directions for providing quality healthcare treatment and services
can be explored. The amalgamation of these technologies ensures immersive,
intimate and personalized patient care. It also provides adaptive intelligent
solutions that eliminates the barriers between healthcare providers and
receivers. This article provides a comprehensive review of the Metaverse for
healthcare, emphasizing on the state of the art, the enabling technologies for
adopting the Metaverse for healthcare, the potential applications and the
related projects. The issues in the adaptation of the Metaverse for healthcare
applications are also identified and the plausible solutions are highlighted as
part of future research directions.

该文章综合评述了 Metaverse 技术在医疗保健领域的最新状况、应用潜力、相关项目及其在医疗保健领域应用中的问题和解决方案。

医疗健康元宇宙：潜在应用、挑战和未来方向综述

Metaverse for Healthcare: A Survey on Potential Applications, Challenges and Future Directions

As of today, the fifth generation (5G) mobile communication system has been
rolled out in many countries and the number of 5G subscribers already reaches a
very large scale. It is time for academia and industry to shift their attention
towards the next generation. At this crossroad, an overview of the current
state of the art and a vision of future communications are definitely of
interest. This article thus aims to provide a comprehensive survey to draw a
picture of the sixth generation (6G) system in terms of drivers, use cases,
usage scenarios, requirements, key performance indicators (KPIs), architecture,
and enabling technologies. First, we attempt to answer the question of "Is
there any need for 6G?" by shedding light on its key driving factors, in which
we predict the explosive growth of mobile traffic until 2030, and envision
potential use cases and usage scenarios. Second, the technical requirements of
6G are discussed and compared with those of 5G with respect to a set of KPIs in
a quantitative manner. Third, the state-of-the-art 6G research efforts and
activities from representative institutions and countries are summarized, and a
tentative roadmap of definition, specification, standardization, and regulation
is projected. Then, we identify a dozen of potential technologies and introduce
their principles, advantages, challenges, and open research issues. Finally,
the conclusions are drawn to paint a picture of "What 6G may look like?". This
survey is intended to serve as an enlightening guideline to spur interests and
further investigations for subsequent research and development of 6G
communications systems.

本综述旨在提供一个全面的调查，绘制第六代（6G）系统，其驱动因素，使用案例，使用场景，要求，关键绩效指标（KPI），架构和启用技术的画面。我们首先讨论了 6G 的技术要求，以及与 5G 相比在一组 KPI 方面的比较。然后，我们确定了一些潜在技术，并介绍了它们的原理，优点，挑战和开放研究问题。最后，本文得出结论，描绘了 “6G 可能会是什么样子” 这一画面。