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Multimedia Comput. Commun. Appl."],"published-print":{"date-parts":[[2024,8,31]]},"abstract":"<jats:p>Objective quality assessment of three-dimensional (3D) point clouds is essential for the development of immersive multimedia systems in real-world applications. Despite the success of perceptual quality evaluation for 2D images and videos, blind\/no-reference metrics are still scarce for 3D point clouds with large-scale irregularly distributed 3D points. Therefore, in this article, we propose an objective point cloud quality index with Structure Guided Resampling (SGR) to automatically evaluate the perceptually visual quality of dense 3D point clouds. The proposed SGR is a general-purpose blind quality assessment method without the assistance of any reference information. Specifically, considering that the human visual system is highly sensitive to structure information, we first exploit the unique normal vectors of point clouds to execute regional pre-processing that consists of keypoint resampling and local region construction. Then, we extract three groups of quality-related features, including (1) geometry density features, (2) color naturalness features, and (3) angular consistency features. Both the cognitive peculiarities of the human brain and naturalness regularity are involved in the designed quality-aware features that can capture the most vital aspects of distorted 3D point clouds. Extensive experiments on several publicly available subjective point cloud quality databases validate that our proposed SGR can compete with state-of-the-art full-reference, reduced-reference, and no-reference quality assessment algorithms.<\/jats:p>","DOI":"10.1145\/3664199","type":"journal-article","created":{"date-parts":[[2024,5,11]],"date-time":"2024-05-11T11:34:43Z","timestamp":1715427283000},"page":"1-21","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":36,"title":["Blind Quality Assessment of Dense 3D Point Clouds with Structure Guided Resampling"],"prefix":"10.1145","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3641-1429","authenticated-orcid":false,"given":"Wei","family":"Zhou","sequence":"first","affiliation":[{"name":"School of Computer Science and Informatics, Cardiff University, Cardiff, United Kingdom of Great Britain and Northern Ireland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4274-3457","authenticated-orcid":false,"given":"Qi","family":"Yang","sequence":"additional","affiliation":[{"name":"Tencent MediaLab, Shanghai China"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-2978-1636","authenticated-orcid":false,"given":"Wu","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Information Science and Engineering, Ningbo University, Ningbo, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6025-9343","authenticated-orcid":false,"given":"Qiuping","family":"Jiang","sequence":"additional","affiliation":[{"name":"School of Information Science and Engineering, Ningbo University, Ningbo, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8165-9322","authenticated-orcid":false,"given":"Guangtao","family":"Zhai","sequence":"additional","affiliation":[{"name":"Institute of Image Communication and Network Engineering, Shanghai Jiao Tong University, Shanghai China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9866-1947","authenticated-orcid":false,"given":"Weisi","family":"Lin","sequence":"additional","affiliation":[{"name":"School of Computer Science and Engineering, Nanyang Technological University, Singapore, Singapore"}]}],"member":"320","published-online":{"date-parts":[[2024,6,13]]},"reference":[{"key":"e_1_3_1_2_2","doi-asserted-by":"publisher","DOI":"10.1109\/ICME.2018.8486512"},{"key":"e_1_3_1_3_2","doi-asserted-by":"publisher","DOI":"10.1109\/ICMEW46912.2020.9106005"},{"key":"e_1_3_1_4_2","doi-asserted-by":"publisher","DOI":"10.1109\/MMSP.2017.8122237"},{"key":"e_1_3_1_5_2","article-title":"A comprehensive study of the rate-distortion performance in MPEG point cloud compression","volume":"8","author":"Alexiou Evangelos","year":"2019","unstructured":"Evangelos Alexiou, Irene Viola, Tom\u00e1s M. 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