An early CU partition mode decision algorithm in VVC based on variogram for virtual reality 360 degree videos
Abstract 360-degree videos have become increasingly popular with the application of virtual reality (VR) technology. To encode such kind of videos with ultra-high resolution, an efficient and real-time video encoder becomes a key requirement. The Versatile Video Coding (VVC) standard has good coding...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-05-01
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| Series: | EURASIP Journal on Image and Video Processing |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s13640-023-00605-0 |
| _version_ | 1797817881005654016 |
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| author | Mengmeng Zhang Yan Hou Zhi Liu |
| author_facet | Mengmeng Zhang Yan Hou Zhi Liu |
| author_sort | Mengmeng Zhang |
| collection | DOAJ |
| description | Abstract 360-degree videos have become increasingly popular with the application of virtual reality (VR) technology. To encode such kind of videos with ultra-high resolution, an efficient and real-time video encoder becomes a key requirement. The Versatile Video Coding (VVC) standard has good coding performance. However, it has pretty high computational complexity which increasing the application cost of 360-degree videos. Among them, the decision of the quadtree with nested multi-type tree (QTMT) partitioning structure is one of the time-consuming procedures. In this paper, based on the characteristics of 360-degree video with Equirectangular projection (ERP) format, the empirical variogram combined with Mahalanobis distance is introduced to measure the difference between the horizontal and vertical directions of the CU, and a fast partition algorithm is proposed. The experimental results show that the algorithm saves 32.13% of the coding time with only an increase of 0.66% in BDBR. |
| first_indexed | 2024-03-13T09:00:00Z |
| format | Article |
| id | doaj.art-f5aa8e38ff5e4226b0b67f1e0ec384b9 |
| institution | Directory Open Access Journal |
| issn | 1687-5281 |
| language | English |
| last_indexed | 2024-03-13T09:00:00Z |
| publishDate | 2023-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Image and Video Processing |
| spelling | doaj.art-f5aa8e38ff5e4226b0b67f1e0ec384b92023-05-28T11:25:04ZengSpringerOpenEURASIP Journal on Image and Video Processing1687-52812023-05-012023111810.1186/s13640-023-00605-0An early CU partition mode decision algorithm in VVC based on variogram for virtual reality 360 degree videosMengmeng Zhang0Yan Hou1Zhi Liu2Beijing Polytechnic CollegeNorth China University of TechnologyNorth China University of TechnologyAbstract 360-degree videos have become increasingly popular with the application of virtual reality (VR) technology. To encode such kind of videos with ultra-high resolution, an efficient and real-time video encoder becomes a key requirement. The Versatile Video Coding (VVC) standard has good coding performance. However, it has pretty high computational complexity which increasing the application cost of 360-degree videos. Among them, the decision of the quadtree with nested multi-type tree (QTMT) partitioning structure is one of the time-consuming procedures. In this paper, based on the characteristics of 360-degree video with Equirectangular projection (ERP) format, the empirical variogram combined with Mahalanobis distance is introduced to measure the difference between the horizontal and vertical directions of the CU, and a fast partition algorithm is proposed. The experimental results show that the algorithm saves 32.13% of the coding time with only an increase of 0.66% in BDBR.https://doi.org/10.1186/s13640-023-00605-0VVCVirtual realityEmpirical variogramIntra codingMahalanobis distance |
| spellingShingle | Mengmeng Zhang Yan Hou Zhi Liu An early CU partition mode decision algorithm in VVC based on variogram for virtual reality 360 degree videos EURASIP Journal on Image and Video Processing VVC Virtual reality Empirical variogram Intra coding Mahalanobis distance |
| title | An early CU partition mode decision algorithm in VVC based on variogram for virtual reality 360 degree videos |
| title_full | An early CU partition mode decision algorithm in VVC based on variogram for virtual reality 360 degree videos |
| title_fullStr | An early CU partition mode decision algorithm in VVC based on variogram for virtual reality 360 degree videos |
| title_full_unstemmed | An early CU partition mode decision algorithm in VVC based on variogram for virtual reality 360 degree videos |
| title_short | An early CU partition mode decision algorithm in VVC based on variogram for virtual reality 360 degree videos |
| title_sort | early cu partition mode decision algorithm in vvc based on variogram for virtual reality 360 degree videos |
| topic | VVC Virtual reality Empirical variogram Intra coding Mahalanobis distance |
| url | https://doi.org/10.1186/s13640-023-00605-0 |
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