This paper investigates different approaches to build and use digital human
avatars toward interactive Virtual Co-presence (VCP) environments. We evaluate
the evolution of technologies for creating VCP environments and how the
advancement in Artificial Intelligence (AI) and Computer Graphics affect the
quality of VCP environments. We categorize different methods in the literature
based on their applications and methodology and compare various groups and
strategies based on their applications, contributions, and limitations. We also
have a brief discussion about the approaches that other forms of human
representation, rather than digital human avatars, have been utilized in VCP
environments. Our goal is to fill the gap in the research domain where there is
a lack of literature review investigating different approaches for creating
avatar-based VCP environments. We hope this study will be useful for future
research involving human representation in VCP or Virtual Reality (VR)
environments. To the best of our knowledge, it is the first survey research
that investigates avatar-based VCP environments. Specifically, the
categorization methodology suggested in this paper for avatar-based methods is
new.

本文调查了构建和使用数字人类化身的不同方法并研究它们对交互式虚拟共存 (VCP) 环境的影响，我们基于应用程序和方法学对文献中的不同方法进行分类，并根据其应用，贡献和限制比较不同的组和策略。此外还讨论了除数字人类化身以外的其他类似方法在 VCP 环境中的应用。本研究的目标是填补研究领域中的空白，提供有关创建基于化身的 VCP 环境的不同方法的文献综述。我们希望这项研究对未来涉及人类在 VCP 或虚拟现实 (VR) 环境中表示的研究有用。据我们所知，这是第一项调查数字人类化身的 VCP 环境的研究，并提出了一种新的分类方法。