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Low Complexity Joint RDO of Prediction Units Couples for HEVC Intra Coding

Abstract: 

HEVC is the latest block-based video compression standard, outperforming H.264/AVC by 50% bitrate savings for the same perceptual quality. An HEVC encoder provides Rate-Distortion optimization coding tools for block-wise compression. Because of complexity limitations, Rate-Distortion Optimization (RDO) is usually performed independently for each block, assuming coding efficiency losses to be negligible. In this paper, we propose an acceleration solution for the Intra coding scheme named Dual-JRDO, which takes advantage of Inter-Block dependencies related to both predictive coding and CABAC. The Dual-JRDO improves Intra coding efficiency at the expense of higher computational complexity. The acceleration of the Dual-JRDO scheme includes adaptive use of the Dual-JRDO model based on source analysis, short-listing and early decisions strategies. The proposed Fast Dual-JRDO reduces the original model complexity by 89.54%, while providing tractable computation for average R-D gains of -0.45% (up to -0.82%) in the HM16.12 reference software model.

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Paper Details

Authors:
Maxime Bichon, Julien Le Tanou, Michael Ropert, Wassim Hamidouche, Luce Morin, Lu Zhang
Submitted On:
8 October 2018 - 3:57am
Short Link:
Type:
Poster
Event:
Presenter's Name:
Maxime Bichon
Paper Code:
IVMSP-P9.5
Document Year:
2018
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[1] Maxime Bichon, Julien Le Tanou, Michael Ropert, Wassim Hamidouche, Luce Morin, Lu Zhang, "Low Complexity Joint RDO of Prediction Units Couples for HEVC Intra Coding", IEEE SigPort, 2018. [Online]. Available: http://sigport.org/3206. Accessed: Dec. 12, 2018.
@article{3206-18,
url = {http://sigport.org/3206},
author = {Maxime Bichon; Julien Le Tanou; Michael Ropert; Wassim Hamidouche; Luce Morin; Lu Zhang },
publisher = {IEEE SigPort},
title = {Low Complexity Joint RDO of Prediction Units Couples for HEVC Intra Coding},
year = {2018} }
TY - EJOUR
T1 - Low Complexity Joint RDO of Prediction Units Couples for HEVC Intra Coding
AU - Maxime Bichon; Julien Le Tanou; Michael Ropert; Wassim Hamidouche; Luce Morin; Lu Zhang
PY - 2018
PB - IEEE SigPort
UR - http://sigport.org/3206
ER -
Maxime Bichon, Julien Le Tanou, Michael Ropert, Wassim Hamidouche, Luce Morin, Lu Zhang. (2018). Low Complexity Joint RDO of Prediction Units Couples for HEVC Intra Coding. IEEE SigPort. http://sigport.org/3206
Maxime Bichon, Julien Le Tanou, Michael Ropert, Wassim Hamidouche, Luce Morin, Lu Zhang, 2018. Low Complexity Joint RDO of Prediction Units Couples for HEVC Intra Coding. Available at: http://sigport.org/3206.
Maxime Bichon, Julien Le Tanou, Michael Ropert, Wassim Hamidouche, Luce Morin, Lu Zhang. (2018). "Low Complexity Joint RDO of Prediction Units Couples for HEVC Intra Coding." Web.
1. Maxime Bichon, Julien Le Tanou, Michael Ropert, Wassim Hamidouche, Luce Morin, Lu Zhang. Low Complexity Joint RDO of Prediction Units Couples for HEVC Intra Coding [Internet]. IEEE SigPort; 2018. Available from : http://sigport.org/3206