Efficient Interpolation Filters for Chroma Motion Compensation in Video Coding

Xi Xie; Kai Zhang; Li Zhang; Meng Wang; Junru Li; Shiqi Wang

doi:10.1109/VCIP56404.2022.10008810

Efficient Interpolation Filters for Chroma Motion Compensation in Video Coding

Xi Xie
, Kai Zhang
, Li Zhang
, Meng Wang
, Junru Li
, Shiqi Wang

Department of Computer Science

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

3 Citations (Scopus)

Abstract

Interpolation filters for motion compensation play an important role in video coding. Until recently, interpolation filters for luma motion compensation (MC) draw most of the attention while interpolation filters for chroma motion compensation are less noticeable. This paper comprehensively analyzes different types of interpolation filters and presents 6-tap DCT based chroma interpolation filters for chroma MC. The proposed interpolation filters are designed considering multiple factors, comprising the characteristics of the chroma component, the frequency response of interpolation filter and the expenses of computational complexity. The experimental results show the proposed method can achieve 0.05%, 1.23% and 1.25% BD-rate reductions on average for Y, Cb and Cr components, respectively, with only 2% decoding time increasing under Random Access configuration, compared with ECM-4.0, which is a reference software developed by JVET, targeting at future video coding technologies beyond VVC. Owing to the good trade-off between coding performance and complexity, the proposed method has been adopted in ECM.

Original language	English
Title of host publication	2022 IEEE INTERNATIONAL CONFERENCE ON VISUAL COMMUNICATIONS AND IMAGE PROCESSING (VCIP)
Publisher	IEEE
Number of pages	5
ISBN (Electronic)	978-1-6654-7592-1
ISBN (Print)	978-1-6654-7593-8
DOIs	https://doi.org/10.1109/VCIP56404.2022.10008810
Publication status	Published - Dec 2022
Event	2022 IEEE International Conference on Visual Communications and Image Processing (VCIP 2022) - Virtual, Suzhou, China Duration: 13 Dec 2022 → 16 Dec 2022 http://vcip2022.org/

Publication series

Name	IEEE International Conference on Visual Communications and Image Processing
ISSN (Print)	1018-8770
ISSN (Electronic)	2642-9357

Conference

Conference	2022 IEEE International Conference on Visual Communications and Image Processing (VCIP 2022)
Abbreviated title	VCIP2022
Place	China
City	Suzhou
Period	13/12/22 → 16/12/22
Internet address	http://vcip2022.org/

Funding

This work is supported in part by the National Natural Science Foundation of China under 62022002, in part by the Hong Kong Research Grants Council General Research Fund (GRF) under Grant 11203220, in part by the Hong Kong Innovation and Technology Fund under Grant PRP/059/20FX.

Research Keywords

chroma interpolation filter
motion compensation
frequency response
ECM
video coding
PREDICTION

RGC Funding Information

RGC-funded

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10.1109/VCIP56404.2022.10008810

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Cite this

Xie, X., Zhang, K., Zhang, L., Wang, M., Li, J., & Wang, S. (2022). Efficient Interpolation Filters for Chroma Motion Compensation in Video Coding. In 2022 IEEE INTERNATIONAL CONFERENCE ON VISUAL COMMUNICATIONS AND IMAGE PROCESSING (VCIP) (IEEE International Conference on Visual Communications and Image Processing). IEEE. https://doi.org/10.1109/VCIP56404.2022.10008810

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title = "Efficient Interpolation Filters for Chroma Motion Compensation in Video Coding",

abstract = "Interpolation filters for motion compensation play an important role in video coding. Until recently, interpolation filters for luma motion compensation (MC) draw most of the attention while interpolation filters for chroma motion compensation are less noticeable. This paper comprehensively analyzes different types of interpolation filters and presents 6-tap DCT based chroma interpolation filters for chroma MC. The proposed interpolation filters are designed considering multiple factors, comprising the characteristics of the chroma component, the frequency response of interpolation filter and the expenses of computational complexity. The experimental results show the proposed method can achieve 0.05\%, 1.23\% and 1.25\% BD-rate reductions on average for Y, Cb and Cr components, respectively, with only 2\% decoding time increasing under Random Access configuration, compared with ECM-4.0, which is a reference software developed by JVET, targeting at future video coding technologies beyond VVC. Owing to the good trade-off between coding performance and complexity, the proposed method has been adopted in ECM.",

keywords = "chroma interpolation filter, motion compensation, frequency response, ECM, video coding, PREDICTION",

author = "Xi Xie and Kai Zhang and Li Zhang and Meng Wang and Junru Li and Shiqi Wang",

year = "2022",

month = dec,

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language = "English",

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Xie, X, Zhang, K, Zhang, L, Wang, M, Li, J & Wang, S 2022, Efficient Interpolation Filters for Chroma Motion Compensation in Video Coding. in 2022 IEEE INTERNATIONAL CONFERENCE ON VISUAL COMMUNICATIONS AND IMAGE PROCESSING (VCIP). IEEE International Conference on Visual Communications and Image Processing, IEEE, 2022 IEEE International Conference on Visual Communications and Image Processing (VCIP 2022), Suzhou, China, 13/12/22. https://doi.org/10.1109/VCIP56404.2022.10008810

Efficient Interpolation Filters for Chroma Motion Compensation in Video Coding. / Xie, Xi; Zhang, Kai; Zhang, Li et al.
2022 IEEE INTERNATIONAL CONFERENCE ON VISUAL COMMUNICATIONS AND IMAGE PROCESSING (VCIP). IEEE, 2022. (IEEE International Conference on Visual Communications and Image Processing).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Efficient Interpolation Filters for Chroma Motion Compensation in Video Coding

AU - Xie, Xi

AU - Zhang, Kai

AU - Zhang, Li

AU - Wang, Meng

AU - Li, Junru

AU - Wang, Shiqi

PY - 2022/12

Y1 - 2022/12

N2 - Interpolation filters for motion compensation play an important role in video coding. Until recently, interpolation filters for luma motion compensation (MC) draw most of the attention while interpolation filters for chroma motion compensation are less noticeable. This paper comprehensively analyzes different types of interpolation filters and presents 6-tap DCT based chroma interpolation filters for chroma MC. The proposed interpolation filters are designed considering multiple factors, comprising the characteristics of the chroma component, the frequency response of interpolation filter and the expenses of computational complexity. The experimental results show the proposed method can achieve 0.05%, 1.23% and 1.25% BD-rate reductions on average for Y, Cb and Cr components, respectively, with only 2% decoding time increasing under Random Access configuration, compared with ECM-4.0, which is a reference software developed by JVET, targeting at future video coding technologies beyond VVC. Owing to the good trade-off between coding performance and complexity, the proposed method has been adopted in ECM.

AB - Interpolation filters for motion compensation play an important role in video coding. Until recently, interpolation filters for luma motion compensation (MC) draw most of the attention while interpolation filters for chroma motion compensation are less noticeable. This paper comprehensively analyzes different types of interpolation filters and presents 6-tap DCT based chroma interpolation filters for chroma MC. The proposed interpolation filters are designed considering multiple factors, comprising the characteristics of the chroma component, the frequency response of interpolation filter and the expenses of computational complexity. The experimental results show the proposed method can achieve 0.05%, 1.23% and 1.25% BD-rate reductions on average for Y, Cb and Cr components, respectively, with only 2% decoding time increasing under Random Access configuration, compared with ECM-4.0, which is a reference software developed by JVET, targeting at future video coding technologies beyond VVC. Owing to the good trade-off between coding performance and complexity, the proposed method has been adopted in ECM.

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KW - frequency response

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KW - video coding

KW - PREDICTION

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SN - 978-1-6654-7593-8

T3 - IEEE International Conference on Visual Communications and Image Processing

BT - 2022 IEEE INTERNATIONAL CONFERENCE ON VISUAL COMMUNICATIONS AND IMAGE PROCESSING (VCIP)

PB - IEEE

T2 - 2022 IEEE International Conference on Visual Communications and Image Processing (VCIP 2022)

Y2 - 13 December 2022 through 16 December 2022

ER -

Efficient Interpolation Filters for Chroma Motion Compensation in Video Coding

Abstract

Publication series

Conference

Funding

Research Keywords

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

ITF: Study of High Efficiency Video Coding Technologies for Cloud Gaming

GRF: Towards Smart Visual Sensor Data Representation with Intelligent Sensing in the Internet of Video Things

Cite this

Efficient Interpolation Filters for Chroma Motion Compensation in Video Coding

Abstract

Publication series

Conference

Funding

Research Keywords

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Projects

ITF: Study of High Efficiency Video Coding Technologies for Cloud Gaming

GRF: Towards Smart Visual Sensor Data Representation with Intelligent Sensing in the Internet of Video Things

Cite this