NeRF View Synthesis: Subjective Quality Assessment and Objective Metrics Evaluation

Fuente: arXiv
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Main Authors: Martin, Pedro, Rodrigues, Antonio, Ascenso, Joao, Queluz, Maria Paula
Format: Preprint
Published: 2024
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author Martin, Pedro
Rodrigues, Antonio
Ascenso, Joao
Queluz, Maria Paula
author_facet Martin, Pedro
Rodrigues, Antonio
Ascenso, Joao
Queluz, Maria Paula
contents Neural radiance fields (NeRF) are a groundbreaking computer vision technology that enables the generation of high-quality, immersive visual content from multiple viewpoints. This capability has significant advantages for applications such as virtual/augmented reality, 3D modelling, and content creation for the film and entertainment industry. However, the evaluation of NeRF methods poses several challenges, including a lack of comprehensive datasets, reliable assessment methodologies, and objective quality metrics. This paper addresses the problem of NeRF view synthesis (NVS) quality assessment thoroughly, by conducting a rigorous subjective quality assessment test that considers several scene classes and recently proposed NVS methods. Additionally, the performance of a wide range of state-of-the-art conventional and learning-based full-reference 2D image and video quality assessment metrics is evaluated against the subjective scores of the subjective study. This study found that errors in camera pose estimation can result in spatial misalignments between synthesized and reference images, which need to be corrected before applying an objective quality metric. The experimental results are analyzed in depth, providing a comparative evaluation of several NVS methods and objective quality metrics, across different classes of visual scenes, including real and synthetic content for front-face and 360-degree camera trajectories.
format Preprint
id arxiv_https___arxiv_org_abs_2405_20078
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle NeRF View Synthesis: Subjective Quality Assessment and Objective Metrics Evaluation
Martin, Pedro
Rodrigues, Antonio
Ascenso, Joao
Queluz, Maria Paula
Multimedia
Neural radiance fields (NeRF) are a groundbreaking computer vision technology that enables the generation of high-quality, immersive visual content from multiple viewpoints. This capability has significant advantages for applications such as virtual/augmented reality, 3D modelling, and content creation for the film and entertainment industry. However, the evaluation of NeRF methods poses several challenges, including a lack of comprehensive datasets, reliable assessment methodologies, and objective quality metrics. This paper addresses the problem of NeRF view synthesis (NVS) quality assessment thoroughly, by conducting a rigorous subjective quality assessment test that considers several scene classes and recently proposed NVS methods. Additionally, the performance of a wide range of state-of-the-art conventional and learning-based full-reference 2D image and video quality assessment metrics is evaluated against the subjective scores of the subjective study. This study found that errors in camera pose estimation can result in spatial misalignments between synthesized and reference images, which need to be corrected before applying an objective quality metric. The experimental results are analyzed in depth, providing a comparative evaluation of several NVS methods and objective quality metrics, across different classes of visual scenes, including real and synthetic content for front-face and 360-degree camera trajectories.
title NeRF View Synthesis: Subjective Quality Assessment and Objective Metrics Evaluation
topic Multimedia
url https://arxiv.org/abs/2405.20078