Intra prediction Mode Based on Symmetry for H.264
Zhiming Liu · Jisuanji gongcheng · 2007
In order to reduce the data of intra-prediction in video coding in H.264 and to improve the optimized selection from intra-prediction modes and the precision of the intra-prediction,this paper presents a novel intra-prediction mode.The mode is called intra-prediction mode based on symmetry(IPMBS).And the mode selection method under the IPMBS with all intra-prediction modes in the H.264 is proposed.The idea comes from symmetry of frame image and the relationship of neighboring macro blocks.It has much more samples considered,and gives an adaptive method to select the intra-prediction mode according to the rule of rate-distortion optimized.Experimental results based on the H.264 JVT reference software of JM10.1 show that the proposed intra-prediction mode and the mode selection method could achieve a better performance while maintaining little computation increase,and presents us a novel direction for intra-prediction research.