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arXiv 2501.08072cs.CVeess.IV

评估人类对新视角合成的感知:动态场景中高斯泼溅与NeRF的主观质量评估

Evaluating Human Perception of Novel View Synthesis: Subjective Quality Assessment of Gaussian Splatting and NeRF in Dynamic Scenes

College of Electronics and Information Engineering, Shenzhen University(深圳大学电子与信息工程学院);School of Electronics and Communication Engineering, Guangzhou University(广州大学电子与通信工程学院);Univ Rennes(雷恩大学);INSA Rennes(雷恩国立应用科学学院);CNRS(法国国家科学研究中心);IRT b < > absent <> < > com;IETR - UMR 6164

Yuhang Zhang, Joshua Maraval, Zhengyu Zhang, Nicolas Ramin, Shishun Tian, Lu Zhang

AI总结:

该研究针对动态真实场景下的GS与NeRF两类新视角合成技术,开展两项主观质量评估实验,构建含多视角视频的真实场景库与客观指标基准,揭示现有方法局限,为质量指标与NVS方法发展提供参考。

摘要:

高斯泼溅(Gaussian Splatting, GS)与神经辐射场(Neural Radiance Fields, NeRF)是革新新视角合成(Novel View Synthesis, NVS)领域的两项突破性技术,可通过从一组稀疏视角图像合成多个视角,实现沉浸式的照片级真实感渲染与用户体验。NVS的潜在应用,如高质量虚拟现实与增强现实、精细三维建模、逼真的医学器官成像,凸显了从人类感知角度评估NVS方法质量的重要性。尽管既往部分研究已探索NVS技术的主观质量评估,但仍面临诸多挑战,尤其体现在NVS方法选择、场景覆盖度与评估方法层面。为应对这些挑战,我们针对包含基于GS与基于NeRF的两类NVS技术开展了两项主观质量评估实验,聚焦动态真实场景。本研究覆盖360°、正面朝向与单视角视频,提供了更丰富、数量更多的真实场景;同时首次探究了NVS方法在含运动物体的动态场景中的影响。两类主观实验有助于从人类感知角度全面理解不同观察路径的影响,为未来全参考与无参考质量指标的开发奠定基础。此外,我们在构建的数据库上针对各类前沿客观指标建立了综合基准,表明现有方法仍难以准确捕捉主观质量。研究结果揭示了现有NVS方法的局限性,或可推动新型NVS方法的发展。

英文摘要:

Gaussian Splatting (GS) and Neural Radiance Fields (NeRF) are two groundbreaking technologies that have revolutionized the field of Novel View Synthesis (NVS), enabling immersive photorealistic rendering and user experiences by synthesizing multiple viewpoints from a set of images of sparse views. The potential applications of NVS, such as high-quality virtual and augmented reality, detailed 3D modeling, and realistic medical organ imaging, underscore the importance of quality assessment of NVS methods from the perspective of human perception. Although some previous studies have explored subjective quality assessments for NVS technology, they still face several challenges, especially in NVS methods selection, scenario coverage, and evaluation methodology. To address these challenges, we conducted two subjective experiments for the quality assessment of NVS technologies containing both GS-based and NeRF-based methods, focusing on dynamic and real-world scenes. This study covers 360°, front-facing, and single-viewpoint videos while providing a richer and greater number of real scenes. Meanwhile, it's the first time to explore the impact of NVS methods in dynamic scenes with moving objects. The two types of subjective experiments help to fully comprehend the influences of different viewing paths from a human perception perspective and pave the way for future development of full-reference and no-reference quality metrics. In addition, we established a comprehensive benchmark of various state-of-the-art objective metrics on the proposed database, highlighting that existing methods still struggle to accurately capture subjective quality. The results give us some insights into the limitations of existing NVS methods and may promote the development of new NVS methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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