A fast multiview video coding algorithm based dynamic multi-threshold

A fast macroblock mode selection algorithm based on dynamic multi-threshold is proposed to improve the encoding speed of multiview video, but with insignificant degradation in rate distortion (RD) performance. The macroblock modes are divided into four classes after statistically analyzing the macroblock mode selection results. Three thresholds are adopted based on the great RD cost gaps between the macroblock mode classes. An approximate computing method and a dynamic updating method of the three thresholds are proposed for implementing the fast algorithm. Simulation results demonstrate that the proposed fast algorithm promotes the encoding speed by 1.92_~7.07 times in comparison with JMVM, while the algorithm hardly influences the RD performance.