IEICE TRANSACTIONS on Information
Prefiltering and Postfiltering Based on Global Motion Compensation for Improving Coding Efficiency in H.264 and HEVC Codecs
Summary :
In this paper, we propose a filtering approach based on global motion estimation (GME) and global motion compensation (GMC) for pre- and postprocessing of video codecs. For preprocessing a video codec, group of pictures (GOP), which is a basic unit for GMC, and reference frames are first defined for an input video sequence. Next, GME and GMC are sequentially performed for every frame in each GOP. Finally, a block-based adaptive temporal filter is applied between the GMC frames before video encoding. For postprocessing a video codec at the decoder end, every decoded frame is inversely motion-compensated using the transmitted global motion information. The holes generated during inverse motion compensation can be filled with the reference frames. The experimental results show that the proposed algorithm provides higher Bjontegaard-delta peak signal-to-noise ratios (BD-PSNRs) of 0.63 and 0.57 dB on an average compared with conventional H.264 and HEVC platforms, respectively.
- Publication
- IEICE TRANSACTIONS on Information Vol.E100-D No.1 pp.160-165
- Publication Date
- 2017/01/01
- Publicized
- 2016/10/07
- Online ISSN
- 1745-1361
- DOI
- 10.1587/transinf.2016EDP7273
- Type of Manuscript
- PAPER
- Category
- Image Processing and Video Processing
Authors
Ho Hyeong RYU
Inha University
Kwang Yeon CHOI
Inha University
Byung Cheol SONG
Inha University
Keyword
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Ho Hyeong RYU, Kwang Yeon CHOI, Byung Cheol SONG, "Prefiltering and Postfiltering Based on Global Motion Compensation for Improving Coding Efficiency in H.264 and HEVC Codecs" in IEICE TRANSACTIONS on Information,
vol. E100-D, no. 1, pp. 160-165, January 2017, doi: 10.1587/transinf.2016EDP7273.
Abstract: In this paper, we propose a filtering approach based on global motion estimation (GME) and global motion compensation (GMC) for pre- and postprocessing of video codecs. For preprocessing a video codec, group of pictures (GOP), which is a basic unit for GMC, and reference frames are first defined for an input video sequence. Next, GME and GMC are sequentially performed for every frame in each GOP. Finally, a block-based adaptive temporal filter is applied between the GMC frames before video encoding. For postprocessing a video codec at the decoder end, every decoded frame is inversely motion-compensated using the transmitted global motion information. The holes generated during inverse motion compensation can be filled with the reference frames. The experimental results show that the proposed algorithm provides higher Bjontegaard-delta peak signal-to-noise ratios (BD-PSNRs) of 0.63 and 0.57 dB on an average compared with conventional H.264 and HEVC platforms, respectively.
URL: https://global.ieice.org/en_transactions/information/10.1587/transinf.2016EDP7273/_p
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@ARTICLE{e100-d_1_160,
author={Ho Hyeong RYU, Kwang Yeon CHOI, Byung Cheol SONG, },
journal={IEICE TRANSACTIONS on Information},
title={Prefiltering and Postfiltering Based on Global Motion Compensation for Improving Coding Efficiency in H.264 and HEVC Codecs},
year={2017},
volume={E100-D},
number={1},
pages={160-165},
abstract={In this paper, we propose a filtering approach based on global motion estimation (GME) and global motion compensation (GMC) for pre- and postprocessing of video codecs. For preprocessing a video codec, group of pictures (GOP), which is a basic unit for GMC, and reference frames are first defined for an input video sequence. Next, GME and GMC are sequentially performed for every frame in each GOP. Finally, a block-based adaptive temporal filter is applied between the GMC frames before video encoding. For postprocessing a video codec at the decoder end, every decoded frame is inversely motion-compensated using the transmitted global motion information. The holes generated during inverse motion compensation can be filled with the reference frames. The experimental results show that the proposed algorithm provides higher Bjontegaard-delta peak signal-to-noise ratios (BD-PSNRs) of 0.63 and 0.57 dB on an average compared with conventional H.264 and HEVC platforms, respectively.},
keywords={},
doi={10.1587/transinf.2016EDP7273},
ISSN={1745-1361},
month={January},}
Copy
TY - JOUR
TI - Prefiltering and Postfiltering Based on Global Motion Compensation for Improving Coding Efficiency in H.264 and HEVC Codecs
T2 - IEICE TRANSACTIONS on Information
SP - 160
EP - 165
AU - Ho Hyeong RYU
AU - Kwang Yeon CHOI
AU - Byung Cheol SONG
PY - 2017
DO - 10.1587/transinf.2016EDP7273
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E100-D
IS - 1
JA - IEICE TRANSACTIONS on Information
Y1 - January 2017
AB - In this paper, we propose a filtering approach based on global motion estimation (GME) and global motion compensation (GMC) for pre- and postprocessing of video codecs. For preprocessing a video codec, group of pictures (GOP), which is a basic unit for GMC, and reference frames are first defined for an input video sequence. Next, GME and GMC are sequentially performed for every frame in each GOP. Finally, a block-based adaptive temporal filter is applied between the GMC frames before video encoding. For postprocessing a video codec at the decoder end, every decoded frame is inversely motion-compensated using the transmitted global motion information. The holes generated during inverse motion compensation can be filled with the reference frames. The experimental results show that the proposed algorithm provides higher Bjontegaard-delta peak signal-to-noise ratios (BD-PSNRs) of 0.63 and 0.57 dB on an average compared with conventional H.264 and HEVC platforms, respectively.
ER -
English
