Fast selection algorithm for intra prediction in AVS2
Zhao Cha · Journal of Computer Applications · 2015
For Audio Video coding Standard Ⅱ(AVS2) intra-prediction mode determination process is complicated to calculate, and the popularity of ultra-high definition video put encoding and decoding system under great pressure, a kind of fast intra prediction algorithm was presented in this paper. The algorithm selected the part of the Smallest Coding Unit(SCU)prediction mode,reducing the amount of computation of the underlying SCU, and then the upper layer Coding Unit(CU)obtained the prediction mode by the lower CU prediction mode, thereby reducing the amount of computation of the upper CU.The experimental results show that the impact on the compression efficiency of the algorithm is very small, the encoding time on average decreases more than 15 percent, and can effectively reduce the complexity of intra-coding.