A novel weighted cross prediction for H.264 intra coding

Authors:
Liping Wang;Lai-Man Po;Yusuf Md. Salah Uddin;Ka-Man Wong;Shenyuan Li
Affiliations:
Department of Electronic Engineering, City University of Hong Kong, Hong Kong SAR, China;Department of Electronic Engineering, City University of Hong Kong, Hong Kong SAR, China;Department of Electronic Engineering, City University of Hong Kong, Hong Kong SAR, China;Department of Electronic Engineering, City University of Hong Kong, Hong Kong SAR, China;Department of Electronic Engineering, City University of Hong Kong, Hong Kong SAR, China
Venue:
ICME'09 Proceedings of the 2009 IEEE international conference on Multimedia and Expo
Year:
2009

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Abstract

In this paper, a novel weighted cross prediction (WCP) mode is proposed to replace DC mode in Intra_4x4 prediction of H.264/AVC. In the proposed scheme, the upper right part of one 4×4 block mainly employs vertical prediction while the lower left part mainly uses horizontal prediction, predicting both in vertical and horizontal directions in one block. This scheme uses simple prediction equations with fixed weighting coefficients. Experimental results show that WCP has improvement compared to H.264 and it is very competitive while comparing to other Intra_4×4 prediction algorithms.