Subjective Quality Assessment of Dynamic 3D Meshes in Virtual Reality Environment

Fuente: arXiv
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Hauptverfasser: Nguyen, Duc V., Ly, Nguyen Thi Quynh, Huong, Truong Thu
Format: Preprint
Veröffentlicht: 2026
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author Nguyen, Duc V.
Ly, Nguyen Thi Quynh
Huong, Truong Thu
author_facet Nguyen, Duc V.
Ly, Nguyen Thi Quynh
Huong, Truong Thu
contents A dynamic 3D mesh is a key component in Virtual Reality applications. However, this type of content demands a significant processing resource for real-time rendering. To reduce processing requirements while preserving the user experience, adjusting the level of detail of 3D meshes based on viewing distance has been proposed. In this paper, we conduct an extensive subjective quality evaluation to investigate the effects of the level of detail and viewing distance on user perception of dynamic 3D meshes in a VR environment. Our evaluation results in a subjective dataset containing user ratings of 320 test stimuli generated from eight dynamic 3D meshes. Result analysis shows that it is possible to remove half of a mesh's faces without causing noticeable degradation in user Quality of Experience (QoE). An evaluation of popular objective quality metrics reveals that both 2D-based and 3D-based metrics have low correlation with subjective scores. Based on the subjective dataset, we develop a novel QoE prediction model that can accurately predict the MOS of a dynamic 3D mesh at a given level of detail and viewing distance. In addition, a QoE-aware resource allocation framework is proposed and evaluated under different resource constraints, showing significant improvement in the total QoE compared to conventional methods.
format Preprint
id arxiv_https___arxiv_org_abs_2603_29166
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Subjective Quality Assessment of Dynamic 3D Meshes in Virtual Reality Environment
Nguyen, Duc V.
Ly, Nguyen Thi Quynh
Huong, Truong Thu
Multimedia
A dynamic 3D mesh is a key component in Virtual Reality applications. However, this type of content demands a significant processing resource for real-time rendering. To reduce processing requirements while preserving the user experience, adjusting the level of detail of 3D meshes based on viewing distance has been proposed. In this paper, we conduct an extensive subjective quality evaluation to investigate the effects of the level of detail and viewing distance on user perception of dynamic 3D meshes in a VR environment. Our evaluation results in a subjective dataset containing user ratings of 320 test stimuli generated from eight dynamic 3D meshes. Result analysis shows that it is possible to remove half of a mesh's faces without causing noticeable degradation in user Quality of Experience (QoE). An evaluation of popular objective quality metrics reveals that both 2D-based and 3D-based metrics have low correlation with subjective scores. Based on the subjective dataset, we develop a novel QoE prediction model that can accurately predict the MOS of a dynamic 3D mesh at a given level of detail and viewing distance. In addition, a QoE-aware resource allocation framework is proposed and evaluated under different resource constraints, showing significant improvement in the total QoE compared to conventional methods.
title Subjective Quality Assessment of Dynamic 3D Meshes in Virtual Reality Environment
topic Multimedia
url https://arxiv.org/abs/2603.29166