IEICE TRANSACTIONS on Information
Fast Coding-Mode Selection and CU-Depth Prediction Algorithm Based on Text-Block Recognition for Screen Content Coding
Summary :
As an important extension of high-efficiency video coding (HEVC), screen content coding (SCC) includes various new coding modes, such as Intra Block Copy (IBC), Palette-based coding (Palette), and Adaptive Color Transform (ACT). These new tools have improved screen content encoding performance. This paper proposed a novel and fast algorithm by classifying Code Units (CUs) as text CUs or non-text CUs. For text CUs, the Intra mode was skipped in the compression process, whereas for non-text CUs, the IBC mode was skipped. The current CU depth range was then predicted according to its adjacent left CU depth level. Compared with the reference software HM16.7+SCM5.4, the proposed algorithm reduced encoding time by 23% on average and achieved an approximate 0.44% increase in Bjøntegaard delta bit rate and a negligible peak signal-to-noise ratio loss.
- Publication
- IEICE TRANSACTIONS on Information Vol.E99-D No.10 pp.2651-2655
- Publication Date
- 2016/10/01
- Publicized
- 2016/07/12
- Online ISSN
- 1745-1361
- DOI
- 10.1587/transinf.2016EDL8031
- Type of Manuscript
- LETTER
- Category
- Image Processing and Video Processing
Authors
Mengmeng ZHANG
North China University of Technology
Ang ZHU
North China University of Technology
Zhi LIU
North China University of Technology
Keyword
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Mengmeng ZHANG, Ang ZHU, Zhi LIU, "Fast Coding-Mode Selection and CU-Depth Prediction Algorithm Based on Text-Block Recognition for Screen Content Coding" in IEICE TRANSACTIONS on Information,
vol. E99-D, no. 10, pp. 2651-2655, October 2016, doi: 10.1587/transinf.2016EDL8031.
Abstract: As an important extension of high-efficiency video coding (HEVC), screen content coding (SCC) includes various new coding modes, such as Intra Block Copy (IBC), Palette-based coding (Palette), and Adaptive Color Transform (ACT). These new tools have improved screen content encoding performance. This paper proposed a novel and fast algorithm by classifying Code Units (CUs) as text CUs or non-text CUs. For text CUs, the Intra mode was skipped in the compression process, whereas for non-text CUs, the IBC mode was skipped. The current CU depth range was then predicted according to its adjacent left CU depth level. Compared with the reference software HM16.7+SCM5.4, the proposed algorithm reduced encoding time by 23% on average and achieved an approximate 0.44% increase in Bjøntegaard delta bit rate and a negligible peak signal-to-noise ratio loss.
URL: https://global.ieice.org/en_transactions/information/10.1587/transinf.2016EDL8031/_p
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@ARTICLE{e99-d_10_2651,
author={Mengmeng ZHANG, Ang ZHU, Zhi LIU, },
journal={IEICE TRANSACTIONS on Information},
title={Fast Coding-Mode Selection and CU-Depth Prediction Algorithm Based on Text-Block Recognition for Screen Content Coding},
year={2016},
volume={E99-D},
number={10},
pages={2651-2655},
abstract={As an important extension of high-efficiency video coding (HEVC), screen content coding (SCC) includes various new coding modes, such as Intra Block Copy (IBC), Palette-based coding (Palette), and Adaptive Color Transform (ACT). These new tools have improved screen content encoding performance. This paper proposed a novel and fast algorithm by classifying Code Units (CUs) as text CUs or non-text CUs. For text CUs, the Intra mode was skipped in the compression process, whereas for non-text CUs, the IBC mode was skipped. The current CU depth range was then predicted according to its adjacent left CU depth level. Compared with the reference software HM16.7+SCM5.4, the proposed algorithm reduced encoding time by 23% on average and achieved an approximate 0.44% increase in Bjøntegaard delta bit rate and a negligible peak signal-to-noise ratio loss.},
keywords={},
doi={10.1587/transinf.2016EDL8031},
ISSN={1745-1361},
month={October},}
Copy
TY - JOUR
TI - Fast Coding-Mode Selection and CU-Depth Prediction Algorithm Based on Text-Block Recognition for Screen Content Coding
T2 - IEICE TRANSACTIONS on Information
SP - 2651
EP - 2655
AU - Mengmeng ZHANG
AU - Ang ZHU
AU - Zhi LIU
PY - 2016
DO - 10.1587/transinf.2016EDL8031
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E99-D
IS - 10
JA - IEICE TRANSACTIONS on Information
Y1 - October 2016
AB - As an important extension of high-efficiency video coding (HEVC), screen content coding (SCC) includes various new coding modes, such as Intra Block Copy (IBC), Palette-based coding (Palette), and Adaptive Color Transform (ACT). These new tools have improved screen content encoding performance. This paper proposed a novel and fast algorithm by classifying Code Units (CUs) as text CUs or non-text CUs. For text CUs, the Intra mode was skipped in the compression process, whereas for non-text CUs, the IBC mode was skipped. The current CU depth range was then predicted according to its adjacent left CU depth level. Compared with the reference software HM16.7+SCM5.4, the proposed algorithm reduced encoding time by 23% on average and achieved an approximate 0.44% increase in Bjøntegaard delta bit rate and a negligible peak signal-to-noise ratio loss.
ER -
English
