3D Gaussian Splatting (3DGS) has attracted significant attention for its potential to revolutionize 3D representation, rendering, and interaction. Despite the rapid growth of 3DGS research, its direct application to Extended Reality (XR) remains underexplored. Although many studies recognize the potential of 3DGS for XR, few have explicitly focused on or demonstrated its effectiveness within XR environments. In this paper, we aim to synthesize innovations in 3DGS that show specific potential for advancing XR research and development. We conduct a comprehensive review of publicly available 3DGS papers, with a focus on those referencing XR-related concepts. Additionally, we perform an in-depth analysis of innovations explicitly relevant to XR and propose a taxonomy to highlight their significance. Building on these insights, we propose several prospective XR research areas where 3DGS can make promising contributions, yet remain rarely touched. By investigating the intersection of 3DGS and XR, this paper provides a roadmap to push the boundaries of XR using cutting-edge 3DGS techniques.

翻译：3D高斯溅射（3DGS）因其在三维表示、渲染与交互领域的变革潜力而受到广泛关注。尽管3DGS研究发展迅速，但其在扩展现实（XR）中的直接应用仍待深入探索。虽然许多研究认识到3DGS在XR领域的潜力，但明确聚焦或实证其在XR环境中有效性的研究仍较为有限。本文旨在系统梳理对XR研发具有特殊促进作用的3DGS创新技术。通过对公开3DGS文献的全面综述（重点关注涉及XR相关概念的成果），我们深入分析了与XR直接相关的技术创新，并提出分类框架以阐明其重要性。基于这些发现，本文提出了数个3DGS可发挥重要贡献但尚未充分探索的XR前瞻研究方向。通过探究3DGS与XR的交叉领域，本文为运用前沿3DGS技术突破XR发展边界提供了路线图。