Efficient Intra Modes for Fast Intra Mode Decision of H.264/AVC
Woong-Ho Lee, Jungho Lee, Ik-Hwan Cho, Jeong Dong-Seok · 2005
Intra prediction coding is one of the many coding-efficiency oriented tools of H.264/AVC, but it requires high computational complexity. Many fast intra coding algorithms have been proposed to reduce the computational complexity of intra prediction. While most of them have been focused on the mode decision methods themselves, we propose a fast algorithm in which new intra modes are substituted for the conventional intra modes so that the number of intra modes can be reduced. The simulation results show that the proposed method could reduce the encoding time of the overall sequence by without any noticeable degradation of the coding efficiency.