Fast H.264/AVC Intra-Prediction Using Frequency Domain Features
Changqian Zhu · Journal of Southwest Jiaotong University · 2007
To reduce the intra-prediction complexity in H.264/AVC,a fast intra-prediction mode selection algorithm was proposed.It calculates the DCT(discrete cosine transform) coefficients for each block,and uses frequency domain features of the target block to eliminate the majority of candidate modes.Simulations verify that the proposed method speeds up the intra-prediction process by 67.5% on average without sacrificing the picture quality and compression ratio.