Fast Transform Unit Depth Decision Based on Quantized Coefficients for HEVC

Zhaoqing PAN; Jianjun LEI; Yun ZHANG; Wenjie YAN; Sam KWONG

doi:10.1109/SMC.2015.202

Fast Transform Unit Depth Decision Based on Quantized Coefficients for HEVC

Zhaoqing PAN, Jianjun LEI, Yun ZHANG, Wenjie YAN, Sam KWONG

Research output: Book Chapters | Papers in Conference Proceedings › Conference paper (refereed) › Research › peer-review

2 Citations (Scopus)

Abstract

The quad tree structure based Transform Unit (TU) helps high efficiency video coding to improve the coding efficiency. However, the achieved coding efficiency comes at the cost of the increased computational complexity. In this paper, based on the quantizated coefficients of the TU, we propose an early termination for the quad tree structure based TU encoding process. If the quantized coefficients of the luminance components are all zeros, the TU encoding process will be terminated. Experimental results show that the proposed method achieves about 55.13% on average TU encoding time saving, while the rate distortion performance degradation is negligible.

Original language	English
Title of host publication	Proceedings - 2015 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2015
Pages	1127-1132
DOIs	https://doi.org/10.1109/SMC.2015.202
Publication status	Published - Oct 2015
Externally published	Yes

Keywords

fast algorithm
HEVC
Quadtree
transform unit
video coding

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10.1109/SMC.2015.202

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@inproceedings{39ce996be7474e0bbe83ade01a3eafaf,

title = "Fast Transform Unit Depth Decision Based on Quantized Coefficients for HEVC",

abstract = "The quad tree structure based Transform Unit (TU) helps high efficiency video coding to improve the coding efficiency. However, the achieved coding efficiency comes at the cost of the increased computational complexity. In this paper, based on the quantizated coefficients of the TU, we propose an early termination for the quad tree structure based TU encoding process. If the quantized coefficients of the luminance components are all zeros, the TU encoding process will be terminated. Experimental results show that the proposed method achieves about 55.13% on average TU encoding time saving, while the rate distortion performance degradation is negligible.",

keywords = "fast algorithm, HEVC, Quadtree, transform unit, video coding",

author = "Zhaoqing PAN and Jianjun LEI and Yun ZHANG and Wenjie YAN and Sam KWONG",

year = "2015",

month = oct,

doi = "10.1109/SMC.2015.202",

language = "English",

pages = "1127--1132",

booktitle = "Proceedings - 2015 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2015",

}

TY - GEN

T1 - Fast Transform Unit Depth Decision Based on Quantized Coefficients for HEVC

AU - PAN, Zhaoqing

AU - LEI, Jianjun

AU - ZHANG, Yun

AU - YAN, Wenjie

AU - KWONG, Sam

PY - 2015/10

Y1 - 2015/10

N2 - The quad tree structure based Transform Unit (TU) helps high efficiency video coding to improve the coding efficiency. However, the achieved coding efficiency comes at the cost of the increased computational complexity. In this paper, based on the quantizated coefficients of the TU, we propose an early termination for the quad tree structure based TU encoding process. If the quantized coefficients of the luminance components are all zeros, the TU encoding process will be terminated. Experimental results show that the proposed method achieves about 55.13% on average TU encoding time saving, while the rate distortion performance degradation is negligible.

AB - The quad tree structure based Transform Unit (TU) helps high efficiency video coding to improve the coding efficiency. However, the achieved coding efficiency comes at the cost of the increased computational complexity. In this paper, based on the quantizated coefficients of the TU, we propose an early termination for the quad tree structure based TU encoding process. If the quantized coefficients of the luminance components are all zeros, the TU encoding process will be terminated. Experimental results show that the proposed method achieves about 55.13% on average TU encoding time saving, while the rate distortion performance degradation is negligible.

KW - fast algorithm

KW - HEVC

KW - Quadtree

KW - transform unit

KW - video coding

UR - http://www.scopus.com/inward/record.url?scp=84964478603&partnerID=8YFLogxK

U2 - 10.1109/SMC.2015.202

DO - 10.1109/SMC.2015.202

M3 - Conference paper (refereed)

SP - 1127

EP - 1132

BT - Proceedings - 2015 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2015

ER -

Fast Transform Unit Depth Decision Based on Quantized Coefficients for HEVC

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Keywords

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