Fast CU size decision of intra prediction for enhancement layers in SHVC

Chang Yu; Xin Lu; Song Kai Li; Yue Hu

doi:10.1007/978-981-10-6571-2_210

Fast CU size decision of intra prediction for enhancement layers in SHVC

Chang Yu^*
, Xin Lu
, Song Kai Li
, Yue Hu

^*Corresponding author for this work

School of Electronics and Information Engineering, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

A fast CU depth level decision algorithm with low complexity for Scalable High Efficiency Video Coding (SHVC) is proposed to reduce the computational complexity caused by the recursive quad-tree structure of Coding Unit (CU) inherited from HEVC. The proposed scheme enables the early termination for CU sizes for intra prediction in the enhancement layer (EL) by using the property of the energy distribution in the current CTU and the optimal coding depths of the neighboring CTUs. Based on an adaptive thresholds scheme, the texture complexity can be categorized to three types and the CU depth level range is therefore narrowed correspondingly. Besides, the spatial correlation existing in the encoded neighboring CTUs is utilised to further reduce the number of Rate Distortion (RD) evaluation. The coding time is therefore significantly saved. The proposed algorithm is evaluated in the reference software of SHVC (SHM12.0). The experimental results shows that the reduction in encoding time can be up to 42.95% in comparison with the original encoding scheme in SHM.

Original language	English
Title of host publication	Communications, Signal Processing, and Systems - Proceedings of the 2017 International Conference on Communications, Signal Processing, and Systems
Editors	Qilian Liang, Min Jia, Jiasong Mu, Wei Wang, Xuhong Feng, Baoju Zhang
Publisher	Springer Verlag
Pages	1735-1743
Number of pages	9
ISBN (Print)	9789811065705
DOIs	https://doi.org/10.1007/978-981-10-6571-2_210
State	Published - 2019
Externally published	Yes
Event	6th International Conference on Communications, Signal Processing, and Systems, CSPS 2017 - Harbin, China Duration: 14 Jul 2017 → 16 Jul 2017

Publication series

Name	Lecture Notes in Electrical Engineering
Volume	463
ISSN (Print)	1876-1100
ISSN (Electronic)	1876-1119

Conference

Conference	6th International Conference on Communications, Signal Processing, and Systems, CSPS 2017
Country/Territory	China
City	Harbin
Period	14/07/17 → 16/07/17

Keywords

Adaptive thresholds
CU sizes
Enhancement layer
SHVC
Spatial correlation

Access to Document

10.1007/978-981-10-6571-2_210

Cite this

Yu, C., Lu, X., Li, S. K., & Hu, Y. (2019). Fast CU size decision of intra prediction for enhancement layers in SHVC. In Q. Liang, M. Jia, J. Mu, W. Wang, X. Feng, & B. Zhang (Eds.), Communications, Signal Processing, and Systems - Proceedings of the 2017 International Conference on Communications, Signal Processing, and Systems (pp. 1735-1743). (Lecture Notes in Electrical Engineering; Vol. 463). Springer Verlag. https://doi.org/10.1007/978-981-10-6571-2_210

Yu, Chang ; Lu, Xin ; Li, Song Kai et al. / Fast CU size decision of intra prediction for enhancement layers in SHVC. Communications, Signal Processing, and Systems - Proceedings of the 2017 International Conference on Communications, Signal Processing, and Systems. editor / Qilian Liang ; Min Jia ; Jiasong Mu ; Wei Wang ; Xuhong Feng ; Baoju Zhang. Springer Verlag, 2019. pp. 1735-1743 (Lecture Notes in Electrical Engineering).

@inproceedings{2bbb1daeebef432b8a35ce48c7ea7e79,

title = "Fast CU size decision of intra prediction for enhancement layers in SHVC",

abstract = "A fast CU depth level decision algorithm with low complexity for Scalable High Efficiency Video Coding (SHVC) is proposed to reduce the computational complexity caused by the recursive quad-tree structure of Coding Unit (CU) inherited from HEVC. The proposed scheme enables the early termination for CU sizes for intra prediction in the enhancement layer (EL) by using the property of the energy distribution in the current CTU and the optimal coding depths of the neighboring CTUs. Based on an adaptive thresholds scheme, the texture complexity can be categorized to three types and the CU depth level range is therefore narrowed correspondingly. Besides, the spatial correlation existing in the encoded neighboring CTUs is utilised to further reduce the number of Rate Distortion (RD) evaluation. The coding time is therefore significantly saved. The proposed algorithm is evaluated in the reference software of SHVC (SHM12.0). The experimental results shows that the reduction in encoding time can be up to 42.95\% in comparison with the original encoding scheme in SHM.",

keywords = "Adaptive thresholds, CU sizes, Enhancement layer, SHVC, Spatial correlation",

author = "Chang Yu and Xin Lu and Li, \{Song Kai\} and Yue Hu",

note = "Publisher Copyright: {\textcopyright} 2019, Springer Nature Singapore Pte Ltd.; 6th International Conference on Communications, Signal Processing, and Systems, CSPS 2017 ; Conference date: 14-07-2017 Through 16-07-2017",

year = "2019",

doi = "10.1007/978-981-10-6571-2\_210",

language = "英语",

isbn = "9789811065705",

series = "Lecture Notes in Electrical Engineering",

publisher = "Springer Verlag",

pages = "1735--1743",

editor = "Qilian Liang and Min Jia and Jiasong Mu and Wei Wang and Xuhong Feng and Baoju Zhang",

booktitle = "Communications, Signal Processing, and Systems - Proceedings of the 2017 International Conference on Communications, Signal Processing, and Systems",

address = "德国",

}

Yu, C, Lu, X, Li, SK & Hu, Y 2019, Fast CU size decision of intra prediction for enhancement layers in SHVC. in Q Liang, M Jia, J Mu, W Wang, X Feng & B Zhang (eds), Communications, Signal Processing, and Systems - Proceedings of the 2017 International Conference on Communications, Signal Processing, and Systems. Lecture Notes in Electrical Engineering, vol. 463, Springer Verlag, pp. 1735-1743, 6th International Conference on Communications, Signal Processing, and Systems, CSPS 2017, Harbin, China, 14/07/17. https://doi.org/10.1007/978-981-10-6571-2_210

Fast CU size decision of intra prediction for enhancement layers in SHVC. / Yu, Chang; Lu, Xin; Li, Song Kai et al.
Communications, Signal Processing, and Systems - Proceedings of the 2017 International Conference on Communications, Signal Processing, and Systems. ed. / Qilian Liang; Min Jia; Jiasong Mu; Wei Wang; Xuhong Feng; Baoju Zhang. Springer Verlag, 2019. p. 1735-1743 (Lecture Notes in Electrical Engineering; Vol. 463).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Fast CU size decision of intra prediction for enhancement layers in SHVC

AU - Yu, Chang

AU - Lu, Xin

AU - Li, Song Kai

AU - Hu, Yue

PY - 2019

Y1 - 2019

N2 - A fast CU depth level decision algorithm with low complexity for Scalable High Efficiency Video Coding (SHVC) is proposed to reduce the computational complexity caused by the recursive quad-tree structure of Coding Unit (CU) inherited from HEVC. The proposed scheme enables the early termination for CU sizes for intra prediction in the enhancement layer (EL) by using the property of the energy distribution in the current CTU and the optimal coding depths of the neighboring CTUs. Based on an adaptive thresholds scheme, the texture complexity can be categorized to three types and the CU depth level range is therefore narrowed correspondingly. Besides, the spatial correlation existing in the encoded neighboring CTUs is utilised to further reduce the number of Rate Distortion (RD) evaluation. The coding time is therefore significantly saved. The proposed algorithm is evaluated in the reference software of SHVC (SHM12.0). The experimental results shows that the reduction in encoding time can be up to 42.95% in comparison with the original encoding scheme in SHM.

AB - A fast CU depth level decision algorithm with low complexity for Scalable High Efficiency Video Coding (SHVC) is proposed to reduce the computational complexity caused by the recursive quad-tree structure of Coding Unit (CU) inherited from HEVC. The proposed scheme enables the early termination for CU sizes for intra prediction in the enhancement layer (EL) by using the property of the energy distribution in the current CTU and the optimal coding depths of the neighboring CTUs. Based on an adaptive thresholds scheme, the texture complexity can be categorized to three types and the CU depth level range is therefore narrowed correspondingly. Besides, the spatial correlation existing in the encoded neighboring CTUs is utilised to further reduce the number of Rate Distortion (RD) evaluation. The coding time is therefore significantly saved. The proposed algorithm is evaluated in the reference software of SHVC (SHM12.0). The experimental results shows that the reduction in encoding time can be up to 42.95% in comparison with the original encoding scheme in SHM.

KW - Adaptive thresholds

KW - CU sizes

KW - Enhancement layer

KW - SHVC

KW - Spatial correlation

UR - https://www.scopus.com/pages/publications/85048683308

U2 - 10.1007/978-981-10-6571-2_210

DO - 10.1007/978-981-10-6571-2_210

M3 - 会议稿件

AN - SCOPUS:85048683308

SN - 9789811065705

T3 - Lecture Notes in Electrical Engineering

SP - 1735

EP - 1743

BT - Communications, Signal Processing, and Systems - Proceedings of the 2017 International Conference on Communications, Signal Processing, and Systems

A2 - Liang, Qilian

A2 - Jia, Min

A2 - Mu, Jiasong

A2 - Wang, Wei

A2 - Feng, Xuhong

A2 - Zhang, Baoju

PB - Springer Verlag

T2 - 6th International Conference on Communications, Signal Processing, and Systems, CSPS 2017

Y2 - 14 July 2017 through 16 July 2017

ER -

Yu C, Lu X, Li SK, Hu Y. Fast CU size decision of intra prediction for enhancement layers in SHVC. In Liang Q, Jia M, Mu J, Wang W, Feng X, Zhang B, editors, Communications, Signal Processing, and Systems - Proceedings of the 2017 International Conference on Communications, Signal Processing, and Systems. Springer Verlag. 2019. p. 1735-1743. (Lecture Notes in Electrical Engineering). doi: 10.1007/978-981-10-6571-2_210

Fast CU size decision of intra prediction for enhancement layers in SHVC

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Keywords

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