Energy-efficient HEVC using stochastic processing

One of the serious challenges facing smartphones and other portable devices is battery life. We aim at improving the energy efficiency of multimedia applications for improved battery life while maintaining an acceptable level of user experience. In this paper, we first present the full profiling of the HEVC encoder. Stochastic processing is then applied to the motion estimation stage of HEVC in order to reduce its energy consumption. Finally, video snapshots are displayed along with the relative percentages in energy savings. Savings up to 13% were reached while maintaining a very good quality according to the video quality metric VQM.