Fast Exclusion of Angular Intra Prediction Modes in HEVC Using Reference Sample Variance

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Heindel A, Kaup A
Publication year: 2016
Language: English


Abstract


Intra picture coding using HEVC is very efficient and is applied to video as well as single image compression. However, the cost for this high compression efficiency is the complexity caused by the high number of 35 available coding modes. Existing methods for fast mode decision estimate the mode costs based on the prediction error samples. This paper proposes a smart method to exclude the 33 angular prediction modes of HEVC even before prediction, if they are unlikely to deliver a small prediction error. The sensitivity of excluding these modes can be adjusted by a threshold. Completely disregarding the angular modes leads to a very high bitrate increase compared to the unmodified encoder of almost 18% with a time saving of 51%. However, excluding the modes using an exemplary threshold value, the encoding time can be reduced by more than 20%, accompanied by a bitrate increase of only 0.7%.



FAU Authors / FAU Editors

Heindel, Andreas
Lehrstuhl für Multimediakommunikation und Signalverarbeitung
Kaup, Andre Prof. Dr.-Ing.
Lehrstuhl für Multimediakommunikation und Signalverarbeitung


How to cite

APA:
Heindel, A., & Kaup, A. (2016). Fast Exclusion of Angular Intra Prediction Modes in HEVC Using Reference Sample Variance. Montréal, CA.

MLA:
Heindel, Andreas, and Andre Kaup. "Fast Exclusion of Angular Intra Prediction Modes in HEVC Using Reference Sample Variance." Proceedings of the IEEE International Symposium on Circuits and Systems (ISCAS), Montréal 2016.

BibTeX: 

Last updated on 2018-07-08 at 19:53