No-Reference Objective Quality Metrics for 3D Point Clouds: A Review
Three-dimensional (3D) applications lead the digital transition toward more immersive and interactive multimedia technologies. Point clouds (PCs) are a fundamental element in capturing and rendering 3D digital environments, but they present significant challenges due to the large amount of data typi...
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MDPI AG
2024-11-01
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| author | Simone Porcu Claudio Marche Alessandro Floris |
| author_facet | Simone Porcu Claudio Marche Alessandro Floris |
| author_sort | Simone Porcu |
| collection | DOAJ |
| description | Three-dimensional (3D) applications lead the digital transition toward more immersive and interactive multimedia technologies. Point clouds (PCs) are a fundamental element in capturing and rendering 3D digital environments, but they present significant challenges due to the large amount of data typically needed to represent them. Although PC compression techniques can reduce the size of PCs, they introduce degradations that can negatively impact the PC’s quality and therefore the object representation’s accuracy. This trade-off between data size and PC quality highlights the critical importance of PC quality assessment (PCQA) techniques. In this article, we review the state-of-the-art no-reference (NR) objective quality metrics for PCs, which can accurately estimate the quality of generated and compressed PCs solely based on feature information extracted from the distorted PC. These characteristics make NR PCQA metrics particularly suitable in real-world application scenarios where the original PC data are unavailable for comparison, such as in streaming applications. |
| format | Article |
| id | doaj-art-ccb6541f05ab470880fb3a03882d3774 |
| institution | OA Journals |
| issn | 1424-8220 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
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| series | Sensors |
| spelling | doaj-art-ccb6541f05ab470880fb3a03882d37742025-08-20T01:53:56ZengMDPI AGSensors1424-82202024-11-012422738310.3390/s24227383No-Reference Objective Quality Metrics for 3D Point Clouds: A ReviewSimone Porcu0Claudio Marche1Alessandro Floris2Department of Electrical and Electronic Engineering (DIEE), University of Cagliari, 09123 Cagliari, ItalyDepartment of Electrical and Electronic Engineering (DIEE), University of Cagliari, 09123 Cagliari, ItalyDepartment of Electrical and Electronic Engineering (DIEE), University of Cagliari, 09123 Cagliari, ItalyThree-dimensional (3D) applications lead the digital transition toward more immersive and interactive multimedia technologies. Point clouds (PCs) are a fundamental element in capturing and rendering 3D digital environments, but they present significant challenges due to the large amount of data typically needed to represent them. Although PC compression techniques can reduce the size of PCs, they introduce degradations that can negatively impact the PC’s quality and therefore the object representation’s accuracy. This trade-off between data size and PC quality highlights the critical importance of PC quality assessment (PCQA) techniques. In this article, we review the state-of-the-art no-reference (NR) objective quality metrics for PCs, which can accurately estimate the quality of generated and compressed PCs solely based on feature information extracted from the distorted PC. These characteristics make NR PCQA metrics particularly suitable in real-world application scenarios where the original PC data are unavailable for comparison, such as in streaming applications.https://www.mdpi.com/1424-8220/24/22/7383point cloudquality of experienceno-reference metricobjective quality evaluation3Dprojection-based metric |
| spellingShingle | Simone Porcu Claudio Marche Alessandro Floris No-Reference Objective Quality Metrics for 3D Point Clouds: A Review Sensors point cloud quality of experience no-reference metric objective quality evaluation 3D projection-based metric |
| title | No-Reference Objective Quality Metrics for 3D Point Clouds: A Review |
| title_full | No-Reference Objective Quality Metrics for 3D Point Clouds: A Review |
| title_fullStr | No-Reference Objective Quality Metrics for 3D Point Clouds: A Review |
| title_full_unstemmed | No-Reference Objective Quality Metrics for 3D Point Clouds: A Review |
| title_short | No-Reference Objective Quality Metrics for 3D Point Clouds: A Review |
| title_sort | no reference objective quality metrics for 3d point clouds a review |
| topic | point cloud quality of experience no-reference metric objective quality evaluation 3D projection-based metric |
| url | https://www.mdpi.com/1424-8220/24/22/7383 |
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