Publisher : The Korean Institute of Broadcast and Media Engineers
DOI : 10.5909/JBE.2015.20.5.78
Title & Authors
Adaptive Residual DPCM using Weighted Linear Combination of Adjacent Residues in Screen Content Video Coding Kang, Je-Won;
In this paper, we propose a novel residual differential pulse-code modulation (RDPCM) coding technique to improve coding efficiency of screen content videos. The proposed method uses a weighted combination of adjacent residues to provide an accurate estimate in RDPCM. The weights are trained in previously coded samples by using an L1 optimization problem with the least absolute shrinkage and selection operation (LASSO). The proposed method achieves BD-rate saving about 3.1% in all-intra coding.
HEVC;screen content video coding;RDPCM;
ISO/IEC/JTC1/SC29/WG11 and ITU-T SG16 Q.6, “"Joint call for proposals for coding of screen content,”" Jan. 2014.
G. Sullivan, J. Ohm, W.-J. Han, and T. Wiegand, “"Overview of the High Efficiency Video Coding Standard,”" IEEE Trans. Circuits Syst. Video Tech., vol. 22, no. 12, pp. 1649–-1668, Dec. 2012.
R. Joshi, S. Liu, G. Sullivan, G. Tech, J. Xu, Y. Ye, “"HEVC Screen Content Coding Draft Text 4, Document JCTVC-U1005,”" in ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11, June. 2015.
Y. L. Lee, K.H. Han, and G. Sullivan, "Improved lossless intra coding for H.264/AVC," IEEE Trans. Image Processing, 2006.
SCM 4.1 software, available at: https://hevc.hhi.fraunhofer.de/svn/ svn_HEVCSoftware/tags/ HM-16.6+SCM-4.1
R. Joshj, J. Sole, and M. Karczewicz, "Extension of residual DPCM to lossy coding JCTVC-N0052", July 2013.
M. Nacarri, A. Gabriellini, M. Mrak, S. Blasi and E. Izquierdo, Inter prediction Residual DPCM, JCTVC-M0442, Apr. 2013.
R. Tibshiirani, "Regression Shrinkage and Selection via Lasso" Journal of the Royal Statistics Society Series B, vol. 58, 1996.
X.Peng, J.Xu, L.Guo, J. Sole, and M. Karczewicz, "Non-RCE2: Transform skip on large Tus," JCTVC-N0288, July, 2013.