A novel Intra coding algorithm with temporal prediction

本文提出了一种利用时空预测实现H.264/AVC编码效率的INTRA编码算法。提出的预测算法可以弥补个体使用时空预测的不足。首先，在时域前一帧中选择新的预测块；然后，将前一帧中选择的块作为参考数据，以与传统INTRA模式相同的参考方向进行空间预测。编码过程也可以在解码器侧重构，无需额外的比特传输。仿真结果表明，所提出的INTRA模式比原来的H.264/AVC平均提高了15%左右。

In this work a novel INTRA coding algorithm which can achieve high coding efficiency using temporal-spatial prediction for H.264/AVC is proposed. The proposed prediction algorithm can compensate the weak point of individual usage of spatial or temporal prediction. Firstly, a new prediction block is selected in the temporal previous frame. Next, the selected block in the previous frame is used as the reference data to perform spatial prediction with the same reference direction as traditional INTRA modes. The coding process can also be reconstructed in decoder side without additional bit transfer. The simulation results show that the proposed new INTRA modes can achieve about an average 15% improvement than the original H.264/AVC.