Fast Intra Mode Decision for Screen Contents Coding in HEVC

Yong-Jo AHN; Xiangjian WU; Donggyu SIM; Woo-Jin HAN

doi:10.1587/transinf.2015EDL8211

Fast Intra Mode Decision for Screen Contents Coding in HEVC

Yong-Jo AHN, Xiangjian WU, Donggyu SIM, Woo-Jin HAN

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In this letter, fast intra mode decision algorithms for HEVC Screen Contents Coding (SCC) are proposed. HEVC SCC has been developed to efficiently code mixed contents consisting of natural video, graphics, and texts. Comparing to HEVC version 1, the SCC encoding complexity significantly increases due to the newly added intra block copy mode. To reduce the heavy encoding complexity, the evaluation orders of multiple intra modes are rearranged and several early termination schemes based on intermediate coding information are developed. Based on our evaluation, it is found that the proposed method can achieve encoding time reduction of 13∼30% with marginal coding gain or loss, compared with HEVC SCC test model 2.0 in all intra (AI) case.

Publication: IEICE TRANSACTIONS on Information Vol.E99-D No.9 pp.2410-2412

Publication Date: 2016/09/01

Publicized: 2016/05/25

Online ISSN: 1745-1361

DOI: 10.1587/transinf.2015EDL8211

Type of Manuscript: LETTER

Category: Image Processing and Video Processing

Authors

Yong-Jo AHN
  Kwangwoon University
Xiangjian WU
  Kwangwoon University
Donggyu SIM
  Kwangwoon University
Woo-Jin HAN
  Gachon University

Keyword

HEVC, intra coding, screen contents coding, fast mode decision

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Yong-Jo AHN, Xiangjian WU, Donggyu SIM, Woo-Jin HAN, "Fast Intra Mode Decision for Screen Contents Coding in HEVC" in IEICE TRANSACTIONS on Information, vol. E99-D, no. 9, pp. 2410-2412, September 2016, doi: 10.1587/transinf.2015EDL8211.
Abstract: In this letter, fast intra mode decision algorithms for HEVC Screen Contents Coding (SCC) are proposed. HEVC SCC has been developed to efficiently code mixed contents consisting of natural video, graphics, and texts. Comparing to HEVC version 1, the SCC encoding complexity significantly increases due to the newly added intra block copy mode. To reduce the heavy encoding complexity, the evaluation orders of multiple intra modes are rearranged and several early termination schemes based on intermediate coding information are developed. Based on our evaluation, it is found that the proposed method can achieve encoding time reduction of 13∼30% with marginal coding gain or loss, compared with HEVC SCC test model 2.0 in all intra (AI) case.
URL: https://globals.ieice.org/en_transactions/information/10.1587/transinf.2015EDL8211/_p

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@ARTICLE{e99-d_9_2410,
author={Yong-Jo AHN, Xiangjian WU, Donggyu SIM, Woo-Jin HAN, },
journal={IEICE TRANSACTIONS on Information},
title={Fast Intra Mode Decision for Screen Contents Coding in HEVC},
year={2016},
volume={E99-D},
number={9},
pages={2410-2412},
abstract={In this letter, fast intra mode decision algorithms for HEVC Screen Contents Coding (SCC) are proposed. HEVC SCC has been developed to efficiently code mixed contents consisting of natural video, graphics, and texts. Comparing to HEVC version 1, the SCC encoding complexity significantly increases due to the newly added intra block copy mode. To reduce the heavy encoding complexity, the evaluation orders of multiple intra modes are rearranged and several early termination schemes based on intermediate coding information are developed. Based on our evaluation, it is found that the proposed method can achieve encoding time reduction of 13∼30% with marginal coding gain or loss, compared with HEVC SCC test model 2.0 in all intra (AI) case.},
keywords={},
doi={10.1587/transinf.2015EDL8211},
ISSN={1745-1361},
month={September},}

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TY - JOUR
TI - Fast Intra Mode Decision for Screen Contents Coding in HEVC
T2 - IEICE TRANSACTIONS on Information
SP - 2410
EP - 2412
AU - Yong-Jo AHN
AU - Xiangjian WU
AU - Donggyu SIM
AU - Woo-Jin HAN
PY - 2016
DO - 10.1587/transinf.2015EDL8211
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E99-D
IS - 9
JA - IEICE TRANSACTIONS on Information
Y1 - September 2016
AB - In this letter, fast intra mode decision algorithms for HEVC Screen Contents Coding (SCC) are proposed. HEVC SCC has been developed to efficiently code mixed contents consisting of natural video, graphics, and texts. Comparing to HEVC version 1, the SCC encoding complexity significantly increases due to the newly added intra block copy mode. To reduce the heavy encoding complexity, the evaluation orders of multiple intra modes are rearranged and several early termination schemes based on intermediate coding information are developed. Based on our evaluation, it is found that the proposed method can achieve encoding time reduction of 13∼30% with marginal coding gain or loss, compared with HEVC SCC test model 2.0 in all intra (AI) case.
ER -