The quadtree-based variable block sized prediction makes the biggest contribution for dramatically improved coding efficiency in the new video coding standard named HEVC. However, this technique takes about 75–80% computational complexity of an HEVC encoder. This paper brings forward an adaptive scheme that exploits temporal, spatial and transform-domain features to speed up the original quadtree-based prediction, targeting at high resolution videos. Before encoding starts, analysis on utilization ratio of each coding depth is performed to skip rarely adopted coding depths at frame level. Then, texture complexity (TC) measurement is applied to filter out none-contributable coding blocks for each largest coding unit (LCU). In this step, a dynamic threshold setting approach is proposed to make filtering adaptable to videos and coding parameters. Thirdly, during encoding process, sum of absolute quantized residual coefficient (SAQC) is used as criterion to prune useless coding blocks for both LCUs and 32
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Guifen TIAN, Xin JIN, Satoshi GOTO, "Content Adaptive Hierarchical Decision of Variable Coding Block Sizes in High Efficiency Video Coding for High Resolution Videos" in IEICE TRANSACTIONS on Fundamentals,
vol. E96-A, no. 4, pp. 780-789, April 2013, doi: 10.1587/transfun.E96.A.780.
Abstract: The quadtree-based variable block sized prediction makes the biggest contribution for dramatically improved coding efficiency in the new video coding standard named HEVC. However, this technique takes about 75–80% computational complexity of an HEVC encoder. This paper brings forward an adaptive scheme that exploits temporal, spatial and transform-domain features to speed up the original quadtree-based prediction, targeting at high resolution videos. Before encoding starts, analysis on utilization ratio of each coding depth is performed to skip rarely adopted coding depths at frame level. Then, texture complexity (TC) measurement is applied to filter out none-contributable coding blocks for each largest coding unit (LCU). In this step, a dynamic threshold setting approach is proposed to make filtering adaptable to videos and coding parameters. Thirdly, during encoding process, sum of absolute quantized residual coefficient (SAQC) is used as criterion to prune useless coding blocks for both LCUs and 32
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E96.A.780/_p
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@ARTICLE{e96-a_4_780,
author={Guifen TIAN, Xin JIN, Satoshi GOTO, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Content Adaptive Hierarchical Decision of Variable Coding Block Sizes in High Efficiency Video Coding for High Resolution Videos},
year={2013},
volume={E96-A},
number={4},
pages={780-789},
abstract={The quadtree-based variable block sized prediction makes the biggest contribution for dramatically improved coding efficiency in the new video coding standard named HEVC. However, this technique takes about 75–80% computational complexity of an HEVC encoder. This paper brings forward an adaptive scheme that exploits temporal, spatial and transform-domain features to speed up the original quadtree-based prediction, targeting at high resolution videos. Before encoding starts, analysis on utilization ratio of each coding depth is performed to skip rarely adopted coding depths at frame level. Then, texture complexity (TC) measurement is applied to filter out none-contributable coding blocks for each largest coding unit (LCU). In this step, a dynamic threshold setting approach is proposed to make filtering adaptable to videos and coding parameters. Thirdly, during encoding process, sum of absolute quantized residual coefficient (SAQC) is used as criterion to prune useless coding blocks for both LCUs and 32
keywords={},
doi={10.1587/transfun.E96.A.780},
ISSN={1745-1337},
month={April},}
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TY - JOUR
TI - Content Adaptive Hierarchical Decision of Variable Coding Block Sizes in High Efficiency Video Coding for High Resolution Videos
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 780
EP - 789
AU - Guifen TIAN
AU - Xin JIN
AU - Satoshi GOTO
PY - 2013
DO - 10.1587/transfun.E96.A.780
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E96-A
IS - 4
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - April 2013
AB - The quadtree-based variable block sized prediction makes the biggest contribution for dramatically improved coding efficiency in the new video coding standard named HEVC. However, this technique takes about 75–80% computational complexity of an HEVC encoder. This paper brings forward an adaptive scheme that exploits temporal, spatial and transform-domain features to speed up the original quadtree-based prediction, targeting at high resolution videos. Before encoding starts, analysis on utilization ratio of each coding depth is performed to skip rarely adopted coding depths at frame level. Then, texture complexity (TC) measurement is applied to filter out none-contributable coding blocks for each largest coding unit (LCU). In this step, a dynamic threshold setting approach is proposed to make filtering adaptable to videos and coding parameters. Thirdly, during encoding process, sum of absolute quantized residual coefficient (SAQC) is used as criterion to prune useless coding blocks for both LCUs and 32
ER -