IEICE TRANSACTIONS on Information
New VVC Chroma Prediction Modes Based on Coloring with Inter-Channel Correlation
Summary :
Inter-channel correlation is one of the redundancy which need to be eliminated in video coding. In the latest video coding standard H.266/VVC, the DM (Direct Mode) and CCLM (Cross-component Linear Model) modes have been introduced to reduce the similarity between luminance and chroma. However, inter-channel correlation is still observed. In this paper, a new inter-channel prediction algorithm is proposed, which utilizes coloring principle to predict chroma pixels. From the coloring perspective, for most natural content video frames, the three components Y, U and V always demonstrate similar coloring pattern. Therefore, the U and V components can be predicted using the coloring pattern of the Y component. In the proposed algorithm, correlation coefficients are obtained in a lightweight way to describe the coloring relationship between current pixel and reference pixel in Y component, and used to predict chroma pixels. The optimal position for the reference samples is also designed. Base on the selected position of the reference samples, two new chroma prediction modes are defined. Experiment results show that, compared with VTM 12.1, the proposed algorithm has an average of -0.92% and -0.96% BD-rate improvement for U and V components, for All Intra (AI) configurations. At the same time, the increased encoding time and decoding time can be ignored.
- Publication
- IEICE TRANSACTIONS on Information Vol.E105-D No.10 pp.1821-1824
- Publication Date
- 2022/10/01
- Publicized
- 2022/06/27
- Online ISSN
- 1745-1361
- DOI
- 10.1587/transinf.2022EDL8010
- Type of Manuscript
- LETTER
- Category
- Image Processing and Video Processing
Authors
Zhi LIU
North China University of Technology
Jia CAO
North China University of Technology
Xiaohan GUAN
North China University of Technology
Mengmeng ZHANG
North China University of Technology,Beijing Polytechnic College
Keyword
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Zhi LIU, Jia CAO, Xiaohan GUAN, Mengmeng ZHANG, "New VVC Chroma Prediction Modes Based on Coloring with Inter-Channel Correlation" in IEICE TRANSACTIONS on Information,
vol. E105-D, no. 10, pp. 1821-1824, October 2022, doi: 10.1587/transinf.2022EDL8010.
Abstract: Inter-channel correlation is one of the redundancy which need to be eliminated in video coding. In the latest video coding standard H.266/VVC, the DM (Direct Mode) and CCLM (Cross-component Linear Model) modes have been introduced to reduce the similarity between luminance and chroma. However, inter-channel correlation is still observed. In this paper, a new inter-channel prediction algorithm is proposed, which utilizes coloring principle to predict chroma pixels. From the coloring perspective, for most natural content video frames, the three components Y, U and V always demonstrate similar coloring pattern. Therefore, the U and V components can be predicted using the coloring pattern of the Y component. In the proposed algorithm, correlation coefficients are obtained in a lightweight way to describe the coloring relationship between current pixel and reference pixel in Y component, and used to predict chroma pixels. The optimal position for the reference samples is also designed. Base on the selected position of the reference samples, two new chroma prediction modes are defined. Experiment results show that, compared with VTM 12.1, the proposed algorithm has an average of -0.92% and -0.96% BD-rate improvement for U and V components, for All Intra (AI) configurations. At the same time, the increased encoding time and decoding time can be ignored.
URL: https://global.ieice.org/en_transactions/information/10.1587/transinf.2022EDL8010/_p
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@ARTICLE{e105-d_10_1821,
author={Zhi LIU, Jia CAO, Xiaohan GUAN, Mengmeng ZHANG, },
journal={IEICE TRANSACTIONS on Information},
title={New VVC Chroma Prediction Modes Based on Coloring with Inter-Channel Correlation},
year={2022},
volume={E105-D},
number={10},
pages={1821-1824},
abstract={Inter-channel correlation is one of the redundancy which need to be eliminated in video coding. In the latest video coding standard H.266/VVC, the DM (Direct Mode) and CCLM (Cross-component Linear Model) modes have been introduced to reduce the similarity between luminance and chroma. However, inter-channel correlation is still observed. In this paper, a new inter-channel prediction algorithm is proposed, which utilizes coloring principle to predict chroma pixels. From the coloring perspective, for most natural content video frames, the three components Y, U and V always demonstrate similar coloring pattern. Therefore, the U and V components can be predicted using the coloring pattern of the Y component. In the proposed algorithm, correlation coefficients are obtained in a lightweight way to describe the coloring relationship between current pixel and reference pixel in Y component, and used to predict chroma pixels. The optimal position for the reference samples is also designed. Base on the selected position of the reference samples, two new chroma prediction modes are defined. Experiment results show that, compared with VTM 12.1, the proposed algorithm has an average of -0.92% and -0.96% BD-rate improvement for U and V components, for All Intra (AI) configurations. At the same time, the increased encoding time and decoding time can be ignored.},
keywords={},
doi={10.1587/transinf.2022EDL8010},
ISSN={1745-1361},
month={October},}
Copy
TY - JOUR
TI - New VVC Chroma Prediction Modes Based on Coloring with Inter-Channel Correlation
T2 - IEICE TRANSACTIONS on Information
SP - 1821
EP - 1824
AU - Zhi LIU
AU - Jia CAO
AU - Xiaohan GUAN
AU - Mengmeng ZHANG
PY - 2022
DO - 10.1587/transinf.2022EDL8010
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E105-D
IS - 10
JA - IEICE TRANSACTIONS on Information
Y1 - October 2022
AB - Inter-channel correlation is one of the redundancy which need to be eliminated in video coding. In the latest video coding standard H.266/VVC, the DM (Direct Mode) and CCLM (Cross-component Linear Model) modes have been introduced to reduce the similarity between luminance and chroma. However, inter-channel correlation is still observed. In this paper, a new inter-channel prediction algorithm is proposed, which utilizes coloring principle to predict chroma pixels. From the coloring perspective, for most natural content video frames, the three components Y, U and V always demonstrate similar coloring pattern. Therefore, the U and V components can be predicted using the coloring pattern of the Y component. In the proposed algorithm, correlation coefficients are obtained in a lightweight way to describe the coloring relationship between current pixel and reference pixel in Y component, and used to predict chroma pixels. The optimal position for the reference samples is also designed. Base on the selected position of the reference samples, two new chroma prediction modes are defined. Experiment results show that, compared with VTM 12.1, the proposed algorithm has an average of -0.92% and -0.96% BD-rate improvement for U and V components, for All Intra (AI) configurations. At the same time, the increased encoding time and decoding time can be ignored.
ER -
English
