Towards Quality Assessment for Arbitrary Translational 6DoF Video: Subjective Quality Database and Objective Assessment Metric

Arbitrary translational Six Degrees of Freedom (6DoF) video represents a transitional stage towards immersive terminal videos, allowing users to freely switch viewpoints for a 3D scene experience. However, the increased freedom of movement introduces new distortions that significantly impact human v...

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Main Authors: Chongchong Jin, Yeyao Chen
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/27/1/44
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author Chongchong Jin
Yeyao Chen
author_facet Chongchong Jin
Yeyao Chen
author_sort Chongchong Jin
collection DOAJ
description Arbitrary translational Six Degrees of Freedom (6DoF) video represents a transitional stage towards immersive terminal videos, allowing users to freely switch viewpoints for a 3D scene experience. However, the increased freedom of movement introduces new distortions that significantly impact human visual perception quality. Therefore, it is crucial to explore quality assessment (QA) to validate its application feasibility. In this study, we conduct subjective and objective QAs of arbitrary translational 6DoF videos. Subjectively, we establish an arbitrary translational 6DoF synthesized video quality database, specifically exploring path navigation in 3D space, which has often been limited to planar navigation in previous studies. We simulate path navigation distortion, rendering distortion, and compression distortion to create a subjective QA database. Objectively, based on the spatio-temporal distribution characteristics of various distortions, we propose a no-reference video quality assessment (VQA) metric for arbitrary translational 6DoF videos. The experimental results on the established subjective dataset fully demonstrate the effectiveness and superiority of the proposed objective method.
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issn 1099-4300
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spelling doaj-art-50e9b1e70fff427e82cb83468aea49e22025-01-24T13:31:47ZengMDPI AGEntropy1099-43002025-01-012714410.3390/e27010044Towards Quality Assessment for Arbitrary Translational 6DoF Video: Subjective Quality Database and Objective Assessment MetricChongchong Jin0Yeyao Chen1College of Science and Technology, Ningbo University, Ningbo 315300, ChinaFaculty of Information Science and Engineering, Ningbo University, Ningbo 315211, ChinaArbitrary translational Six Degrees of Freedom (6DoF) video represents a transitional stage towards immersive terminal videos, allowing users to freely switch viewpoints for a 3D scene experience. However, the increased freedom of movement introduces new distortions that significantly impact human visual perception quality. Therefore, it is crucial to explore quality assessment (QA) to validate its application feasibility. In this study, we conduct subjective and objective QAs of arbitrary translational 6DoF videos. Subjectively, we establish an arbitrary translational 6DoF synthesized video quality database, specifically exploring path navigation in 3D space, which has often been limited to planar navigation in previous studies. We simulate path navigation distortion, rendering distortion, and compression distortion to create a subjective QA database. Objectively, based on the spatio-temporal distribution characteristics of various distortions, we propose a no-reference video quality assessment (VQA) metric for arbitrary translational 6DoF videos. The experimental results on the established subjective dataset fully demonstrate the effectiveness and superiority of the proposed objective method.https://www.mdpi.com/1099-4300/27/1/44arbitrary translational 6DoFsynthesized videosubjective and objectivevideo quality assessment
spellingShingle Chongchong Jin
Yeyao Chen
Towards Quality Assessment for Arbitrary Translational 6DoF Video: Subjective Quality Database and Objective Assessment Metric
Entropy
arbitrary translational 6DoF
synthesized video
subjective and objective
video quality assessment
title Towards Quality Assessment for Arbitrary Translational 6DoF Video: Subjective Quality Database and Objective Assessment Metric
title_full Towards Quality Assessment for Arbitrary Translational 6DoF Video: Subjective Quality Database and Objective Assessment Metric
title_fullStr Towards Quality Assessment for Arbitrary Translational 6DoF Video: Subjective Quality Database and Objective Assessment Metric
title_full_unstemmed Towards Quality Assessment for Arbitrary Translational 6DoF Video: Subjective Quality Database and Objective Assessment Metric
title_short Towards Quality Assessment for Arbitrary Translational 6DoF Video: Subjective Quality Database and Objective Assessment Metric
title_sort towards quality assessment for arbitrary translational 6dof video subjective quality database and objective assessment metric
topic arbitrary translational 6DoF
synthesized video
subjective and objective
video quality assessment
url https://www.mdpi.com/1099-4300/27/1/44
work_keys_str_mv AT chongchongjin towardsqualityassessmentforarbitrarytranslational6dofvideosubjectivequalitydatabaseandobjectiveassessmentmetric
AT yeyaochen towardsqualityassessmentforarbitrarytranslational6dofvideosubjectivequalitydatabaseandobjectiveassessmentmetric