Double bit range estimation with eight estimators for CABAC in VVC
Abstract This work describes the modification of Context‐based Adaptive Binary Arithmetic Coding (CABAC) using the double bit range estimation in the VVC engine and the consideration of range updates by using eight hypothetical probability estimators. The focus is on the selected adaptation rates pe...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-10-01
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| Series: | IET Image Processing |
| Online Access: | https://doi.org/10.1049/ipr2.12547 |
| _version_ | 1811185511146979328 |
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| author | Ka‐Hou Chan Sio‐Kei Im |
| author_facet | Ka‐Hou Chan Sio‐Kei Im |
| author_sort | Ka‐Hou Chan |
| collection | DOAJ |
| description | Abstract This work describes the modification of Context‐based Adaptive Binary Arithmetic Coding (CABAC) using the double bit range estimation in the VVC engine and the consideration of range updates by using eight hypothetical probability estimators. The focus is on the selected adaptation rates performed in these proposed estimators, which are chosen based on memory consideration and coding efficiency. An investigation of arithmetic coding engines with multi‐hypothesis probability estimates and their consideration of contextual modeling of entropy coding at the level of transform coefficients. The proposed scheme enables a quantitative representation of probabilistic predictions linearly and describes the scalability potential for higher accuracy. In addition, this work discusses the hardware implementation, which is based on simple operations such as bitwise operations and subinterval updates. The experimental results validate the effectiveness of the proposed approach specified in VTM framework. The improved results show that it provides more significant gains in terms of RA and LD, which is better than the AI configuration. |
| first_indexed | 2024-04-11T13:31:43Z |
| format | Article |
| id | doaj.art-01fe16cc4a3349b7941d2f1fba8aea6f |
| institution | Directory Open Access Journal |
| issn | 1751-9659 1751-9667 |
| language | English |
| last_indexed | 2024-04-11T13:31:43Z |
| publishDate | 2022-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Image Processing |
| spelling | doaj.art-01fe16cc4a3349b7941d2f1fba8aea6f2022-12-22T04:21:48ZengWileyIET Image Processing1751-96591751-96672022-10-0116123155316310.1049/ipr2.12547Double bit range estimation with eight estimators for CABAC in VVCKa‐Hou Chan0Sio‐Kei Im1Faculty of Applied Sciences Macao Polytechnic University Macau ChinaMacao Polytechnic University Macau ChinaAbstract This work describes the modification of Context‐based Adaptive Binary Arithmetic Coding (CABAC) using the double bit range estimation in the VVC engine and the consideration of range updates by using eight hypothetical probability estimators. The focus is on the selected adaptation rates performed in these proposed estimators, which are chosen based on memory consideration and coding efficiency. An investigation of arithmetic coding engines with multi‐hypothesis probability estimates and their consideration of contextual modeling of entropy coding at the level of transform coefficients. The proposed scheme enables a quantitative representation of probabilistic predictions linearly and describes the scalability potential for higher accuracy. In addition, this work discusses the hardware implementation, which is based on simple operations such as bitwise operations and subinterval updates. The experimental results validate the effectiveness of the proposed approach specified in VTM framework. The improved results show that it provides more significant gains in terms of RA and LD, which is better than the AI configuration.https://doi.org/10.1049/ipr2.12547 |
| spellingShingle | Ka‐Hou Chan Sio‐Kei Im Double bit range estimation with eight estimators for CABAC in VVC IET Image Processing |
| title | Double bit range estimation with eight estimators for CABAC in VVC |
| title_full | Double bit range estimation with eight estimators for CABAC in VVC |
| title_fullStr | Double bit range estimation with eight estimators for CABAC in VVC |
| title_full_unstemmed | Double bit range estimation with eight estimators for CABAC in VVC |
| title_short | Double bit range estimation with eight estimators for CABAC in VVC |
| title_sort | double bit range estimation with eight estimators for cabac in vvc |
| url | https://doi.org/10.1049/ipr2.12547 |
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