Fast intra partition and mode prediction for equirectangular projection 360‐degree video coding
Abstract 360‐degree videos have drawn great attention from both the academia and the industry. For transmission and storage of 360‐degree video, the joint video exploration team proposed the Versatile Video Coding (VVC) standard. VVC can significantly reduce the bitrate while maintaining the same su...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-02-01
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| Series: | IET Image Processing |
| Online Access: | https://doi.org/10.1049/ipr2.12655 |
| _version_ | 1797937384933818368 |
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| author | Shu Zheng‐Jie Peng Zong‐Ju Jiang Gang‐Yi Chen Fen Yuan Bo‐Sen |
| author_facet | Shu Zheng‐Jie Peng Zong‐Ju Jiang Gang‐Yi Chen Fen Yuan Bo‐Sen |
| author_sort | Shu Zheng‐Jie |
| collection | DOAJ |
| description | Abstract 360‐degree videos have drawn great attention from both the academia and the industry. For transmission and storage of 360‐degree video, the joint video exploration team proposed the Versatile Video Coding (VVC) standard. VVC can significantly reduce the bitrate while maintaining the same subjective visual quality compared to the preceding high efficiency video coding. However, the computational complexity of VVC is extremely high which hinders the interactive applications. This paper proposes a fast intra partition method and mode prediction algorithm for equirectangular projection 360‐degree video coding. First, a latitude‐based preprocessing is introduced to early terminate the Coding Unit (CU) partition in the polar region. Second, the support vector machine is used to predict the CU partition type. Third, the fast intra mode search method accelerates the intra mode prediction. Experimental results show that the proposed algorithm can significantly obtain an average time reduction rate of 60.40% and a Bjontegaard delta rate increase of 1.96%. |
| first_indexed | 2024-04-10T18:43:46Z |
| format | Article |
| id | doaj.art-4bce5a71ac30481181b356b1e8814823 |
| institution | Directory Open Access Journal |
| issn | 1751-9659 1751-9667 |
| language | English |
| last_indexed | 2024-04-10T18:43:46Z |
| publishDate | 2023-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Image Processing |
| spelling | doaj.art-4bce5a71ac30481181b356b1e88148232023-02-01T11:19:25ZengWileyIET Image Processing1751-96591751-96672023-02-0117255856910.1049/ipr2.12655Fast intra partition and mode prediction for equirectangular projection 360‐degree video codingShu Zheng‐Jie0Peng Zong‐Ju1Jiang Gang‐Yi2Chen Fen3Yuan Bo‐Sen4Faculty of Information Science and Engineering Ningbo University Ningbo People's Republic of ChinaFaculty of Information Science and Engineering Ningbo University Ningbo People's Republic of ChinaFaculty of Information Science and Engineering Ningbo University Ningbo People's Republic of ChinaFaculty of Information Science and Engineering Ningbo University Ningbo People's Republic of ChinaSchool of Electrical and Electronic Engineering Chongqing University of Technology Chongqing People's Republic of ChinaAbstract 360‐degree videos have drawn great attention from both the academia and the industry. For transmission and storage of 360‐degree video, the joint video exploration team proposed the Versatile Video Coding (VVC) standard. VVC can significantly reduce the bitrate while maintaining the same subjective visual quality compared to the preceding high efficiency video coding. However, the computational complexity of VVC is extremely high which hinders the interactive applications. This paper proposes a fast intra partition method and mode prediction algorithm for equirectangular projection 360‐degree video coding. First, a latitude‐based preprocessing is introduced to early terminate the Coding Unit (CU) partition in the polar region. Second, the support vector machine is used to predict the CU partition type. Third, the fast intra mode search method accelerates the intra mode prediction. Experimental results show that the proposed algorithm can significantly obtain an average time reduction rate of 60.40% and a Bjontegaard delta rate increase of 1.96%.https://doi.org/10.1049/ipr2.12655 |
| spellingShingle | Shu Zheng‐Jie Peng Zong‐Ju Jiang Gang‐Yi Chen Fen Yuan Bo‐Sen Fast intra partition and mode prediction for equirectangular projection 360‐degree video coding IET Image Processing |
| title | Fast intra partition and mode prediction for equirectangular projection 360‐degree video coding |
| title_full | Fast intra partition and mode prediction for equirectangular projection 360‐degree video coding |
| title_fullStr | Fast intra partition and mode prediction for equirectangular projection 360‐degree video coding |
| title_full_unstemmed | Fast intra partition and mode prediction for equirectangular projection 360‐degree video coding |
| title_short | Fast intra partition and mode prediction for equirectangular projection 360‐degree video coding |
| title_sort | fast intra partition and mode prediction for equirectangular projection 360 degree video coding |
| url | https://doi.org/10.1049/ipr2.12655 |
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