Enhanced intra coding of H.264/AVC advanced video coding standard with adaptive number of modes

Authors:
Mohammed Golam Sarwer;Q. M. Jonathan Wu
Affiliations:
Department of Electrical and Computer Engineering, University of Windsor, Windsor, ON, Canada;Department of Electrical and Computer Engineering, University of Windsor, Windsor, ON, Canada
Venue:
AMT'10 Proceedings of the 6th international conference on Active media technology
Year:
2010

Citing 5
Cited 0

Adaptive Single Pixel Based Lossless Intra Coding for H.264 / MPEG-4 AVC

ICCIMA '07 Proceedings of the International Conference on Computational Intelligence and Multimedia Applications (ICCIMA 2007) - Volume 03
Fast sum of absolute transformed difference based 4×4 intra-mode decision of H.264/AVC video coding standard

Image Communication
Adaptive variable block-size early motion estimation termination algorithm for H.264/AVC video coding standard

IEEE Transactions on Circuits and Systems for Video Technology
A novel weighted cross prediction for H.264 intra coding

ICME'09 Proceedings of the 2009 IEEE international conference on Multimedia and Expo
Adaptive Single-Multiple Prediction for H.264/AVC Intra Coding

IEEE Transactions on Circuits and Systems for Video Technology

Quantified Score

Hi-index	0.00

Visualization

Abstract

In H.264/AVC intra coding, DC mode is used to predict the regions with no unified direction and the predicted values of all pixels are same. Therefore, the smoothly varying regions are not well de-correlated. In order to address this issue, this paper proposes an improved DC prediction mode based on the distance between the predicted and reference pixels. On the other hand, using the nine prediction modes in intra 4×4 and 8×8 block unit can reduce the spatial redundancies, but it needs a lot of overhead bits. In order to reduce the number of overhead bits and computational cost of the encoder, this paper adaptively selects the number of prediction mode for each 4×4 or 8×8 block. Experimental results confirm that the proposed methods save 14.8% bit rate and improve the video quality by 0.44 dB on average. The proposed method saves about 37.8% computation of the H.264/AVC intra coding method.