Reversed intra prediction based on chroma extraction in HEVC

Wei Jing Chen, Jia Su, Bin Li, Takeshi Ikenaga

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

In the HEVC standard, UIP (unified intra prediction) is included as one of the new coding tools in the latest HM software, which supports 33 different directions in addition to the DC prediction mode. It represents directional structures more accurately, and performs remarkable bit rate saving. However, UIP also significantly increases the burdens on computational complexity. This contribution proposes a reversed intra prediction which utilizes the inherent correlation between luma and chroma. By reversing the prediction orders, the chroma prediction is executed first in order to create the depth map and mode candidate subset that will reduce the computational complexity in luma intra prediction. Experiment results show that the proposed algorithm can achieve approximately 30% time savings in average with 0.03, 0.05 BD-PSNR losses in chroma components and unnoticeable increments in bit rate.

Original languageEnglish
Title of host publication2011 International Symposium on Intelligent Signal Processing and Communications Systems
Subtitle of host publication"The Decade of Intelligent and Green Signal Processing and Communications", ISPACS 2011
DOIs
Publication statusPublished - 2011 Dec 1
Event19th IEEE International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2011 - Chiang Mai, Thailand
Duration: 2011 Dec 72011 Dec 9

Publication series

Name2011 International Symposium on Intelligent Signal Processing and Communications Systems: "The Decade of Intelligent and Green Signal Processing and Communications", ISPACS 2011

Conference

Conference19th IEEE International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2011
CountryThailand
CityChiang Mai
Period11/12/711/12/9

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Keywords

  • HEVC
  • chroma extraction
  • reversed intra prediction

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing

Cite this

Chen, W. J., Su, J., Li, B., & Ikenaga, T. (2011). Reversed intra prediction based on chroma extraction in HEVC. In 2011 International Symposium on Intelligent Signal Processing and Communications Systems: "The Decade of Intelligent and Green Signal Processing and Communications", ISPACS 2011 [6146083] (2011 International Symposium on Intelligent Signal Processing and Communications Systems: "The Decade of Intelligent and Green Signal Processing and Communications", ISPACS 2011). https://doi.org/10.1109/ISPACS.2011.6146083